Politics and the Political System of the Ancient Maya

Politics and the Political System of the Ancient Maya The Mayan civilization flourished in the rainforests of southern Mexico, Guatemala, and Belize, reaching its apex around A.D. 700–900 before falling into a swift and somewhat mysterious decline. The Maya were expert astronomers and traders: they were also literate with a complicated language and their own books. Like other civilizations, the Maya had rulers and a ruling class, and their political structure was complex. Their kings were powerful and claimed to be descended from the gods and the planets. The Mayan City-States The Mayan civilization was large, powerful, and culturally complex: it is often compared to the Incas of Peru and the Aztecs of Central Mexico. Unlike these other empires, however, the Maya never unified. Instead of a mighty empire ruled from one city by one set of rulers, the Maya instead had a series of city-states that only ruled the surrounding area, or some nearby vassal states if they were powerful enough. Tikal, one of the most powerful Mayan city-states, never ruled much farther than its immediate borders, although it did have vassal cities such as Dos Pilas and Copn. Each of these city-states had its own ruler. Development of Mayan Politics and Kingship The Mayan culture began around 1800 B.C. in the lowlands of the Yucatan and southern Mexico. For centuries, their culture slowly advanced, but as of yet, they had no concept of kings or royal families. It wasnt until the middle to late preclassic periods (300 B.C. or so) that evidence of kings began to appear at certain Mayan sites. The founding king of Tikals first royal dynasty, Yax Ehb Xook, lived sometime in the Preclassic period. By A.D. 300, kings were common, and the Maya began building stelae to honor them: large, stylized stone statues that describe the king, or Ahau, and his accomplishments. The Mayan Kings The Mayan kings claimed descent from the gods and planets, laying claim to a quasi-divine status, somewhere between humans and gods. As such, they lived between two worlds, and wielding â€Å"divine† power was part of their duties. The kings and royal family had important roles at public ceremonies, such as the ball games. They channeled their connection to the gods through sacrifices (of their own blood, of captives, etc.), dance, spiritual trances, and hallucinogenic enemas. Succession was usually patrilineal, but not always. Occasionally, queens ruled when no suitable male of the royal line was available or of age. All kings had numbers that placed them in order from the founder of the dynasty. Unfortunately, this number is not always recorded in the king’s glyphs on stone carvings, resulting on unclear histories of dynastic succession. Life of a Mayan King A Mayan king was groomed from birth to rule. A prince had to pass through many different initiations and rites. As a young man, he had his first bloodletting at the age of five or six. As a young man, he was expected to fight and lead battles and skirmishes against rival tribes. Capturing prisoners, particularly high-ranking ones, was important. When the prince finally became king, the elaborate ceremony included sitting on a jaguar pelt in an elaborate headdress of colorful feathers and seashells, holding a scepter. As king, he was supreme head of the military and was expected to fight and participate in any armed conflicts entered into by his city-state. He also had to participate in many religious rituals, as he was a conduit between humans and the gods. Kings were allowed to take multiple wives. Mayan Palaces Palaces are found at all of the major Mayan sites. These buildings were located in the heart of the city, near the pyramids and temples so important to Maya life. In some cases, the palaces were very large, multistoried structures, which may indicate that a complicated bureaucracy was in place to rule the kingdom. The palaces were homes to the king and the royal family. Many of the king’s tasks and duties were carried out not in the temples but in the palace itself. These events might have included feasts, celebrations, diplomatic occasions, and receiving tribute from vassal states. Classic-Era Mayan Political Structure By the time the Maya reached their Classic Era, they had a well-developed political system. Renowned archaeologist Joyce Marcus believes that by the Late Classic era, the Maya had a four-tiered political hierarchy. At the top were the king and his administration in major cities like Tikal, Palenque, or Calakmul. These kings would be immortalized on stelae, their great deeds recorded forever. Following the main city were a small group of vassal city-states, with lesser nobility or a relative of the Ahau in charge: these rulers did not merit stelae. After that were affiliated villages, large enough to have rudimentary religious buildings and ruled by minor nobility. The fourth tier consisted of hamlets, which were all or mostly residential and devoted to agriculture. Contact with Other City-States Although the Maya were never a unified empire like the Incas or Aztecs, the city-states nevertheless had much contact. This contact facilitated cultural exchange, making the Maya much more unified culturally than politically. Trade was common. The Maya traded in prestige items like obsidian, gold, feathers, and jade. They also traded in food items, particularly in later eras as the major cities grew too large to support their population. Warfare was also common: skirmishes to take slaves and victims for sacrifice were common, and all-out wars not unheard of. Tikal was defeated by rival Calakmul in 562, causing a century-long hiatus in its power before it reached its former glory once again. The powerful city of Teotihuacan, just north of present-day Mexico City, wielded great influence on the Mayan world and even replaced the ruling family of Tikal in favor of one more friendly to their city. Politics and the Decline of the Maya The Classic Era was the height of the Mayan civilization culturally, politically, and militarily. Between A.D. 700 and 900, however, the Maya civilization began a swift and irreversible decline. The reasons the Mayan society fell are still a mystery, but theories abound. As the Maya civilization grew, warfare between city-states grew as well: entire cities were attacked, defeated, and destroyed. The ruling class grew as well, placing a strain on the working classes, which may have resulted in civil strife. Food became a problem for some Maya cities as the population grew. When trade could no longer make up the differences, hungry citizens may have revolted or fled. The Mayan rulers might have avoided some of these calamities. Source McKillop, Heather. The Ancient Maya: New Perspectives. Reprint edition, W. W. Norton Company, July 17, 2006.

Drought Causes, Stages, and Problems

Drought Causes, Stages, and Problems Every year as summer approaches, areas around the world grow concerned about seasonal drought. Throughout the winter, many places monitor precipitation and the snowpack to prepare for what the warmer, drier months may bring. In addition, there are areas where drought is a regular year to year occurrence that lasts longer than just the summer. From hot deserts to the freezing poles, drought is something that affects plants, animals, and people worldwide. What Is a Drought? Drought is defined as a period in which a region has a deficit in its water supply. Drought is a normal feature of climate which happens in all climate zones from time to time. Usually, drought is talked about in one of two perspectives- meteorological and hydrological. A drought in terms of meteorology takes into account deficiencies in measured precipitation. Each years measurements are then compared to what is determined as a normal amount of precipitation and drought is determined from there. For hydrologists, droughts are monitored by checking stream flow and lake, reservoir, and aquifer water levels. Precipitation is also considered here as it contributes to the water levels. In addition, there are agricultural droughts that can impact crop production and cause changes to the natural distribution of various species. The farms themselves can also cause droughts to happen as the soil is depleted and therefore cannot absorb as much water, but they can be impacted by natural droughts as well. Causes Because drought is defined as a deficit in water supply, it can be caused by a number of factors. The most important one though relates to the amount of water vapor in the atmosphere as this is what creates precipitation. More rain, sleet, hail, and snow can occur where there are moist, low-pressure air systems. If there is an above average presence of dry, high-pressure air systems instead, less moisture is available to produce precipitation (because these systems cannot hold as much water vapor). This results in a deficit of water for the areas over which they move. The same can also happen when winds shift air masses and warm, dry, continental air moves over an area as opposed to cooler, moist, oceanic air masses. El Nino, which affects the oceans water temperature, also has an impact on precipitation levels because, in years when the temperature cycle is present, it can shift the air masses above the ocean, often making wet places dry (drought prone) and dry places wet. Finally, deforestation for agriculture and/or building combined with the resultant erosion can also cause drought to begin because as the soil is moved away from an area it is less able to absorb moisture when it falls. Stages of Drought Since many areas, regardless of their climatic region, are prone to drought, different definitions of the stages of drought have developed. They are all somewhat similar, however, usually ranging from a drought warning or watch, which is the least severe. This stage is declared when a drought could be approaching. The next stages are mostly called drought emergency, disaster, or critical drought stage. This final stage begins after a drought has occurred for a long period and water sources begin to be depleted. During this stage, public water use is limited and oftentimes drought disaster plans are put into place. Short and Long Term Consequences Regardless of a droughts stage, there are short and long term consequences with any drought because of nature and societys dependence on water. Problems associated with drought can have economic, environmental, and social impacts on both the areas where they occur and areas that have relations with those where the drought happens. Most of the economic impacts of drought are associated with agriculture and the income generated from crops. In times of drought, the lack of water can often cause a decline in crop yields, and thus a reduction in income for farmers and an increase in the market price of products since there is less to go around. In a prolonged drought, unemployment of farmers and even retailers can occur, having a significant impact on the economy of the area and those with economic ties to it. In terms of environmental problems, drought can result in insect infestations and plant diseases, increased erosion, habitat and landscape degradation, a decrease in air quality and that of what water is present, as well as an increased risk of fire because of drier vegetation. In short-term droughts, natural environments can often rebound, but when there are long term droughts, plant and animal species can suffer tremendously, and over time desertification can happen with an extreme lack of moisture. Finally, droughts have social impacts that can cause disputes between users of available water, inequalities in water distribution between wealthy and poor, disparities in areas in need of disaster relief, and a decline in health. In addition, in rural developing countries population migration can begin when one area experiences drought because often people will go to areas where water and its benefits are more prevalent. This then depletes the natural resources of the new area, can create conflicts among neighboring populations and takes workers away from the original area. Over time, increased poverty and social unrest are likely to develop. Drought Mitigation Measures Because severe drought is often slow in its development, it is relatively easy to tell when one is coming and in areas that are capable, there are several mitigation measures that can be used to reduce the impacts felt by drought. The most important steps in lessening the effects of drought though are soil and water conservation. By protecting soil, it is better able to absorb precipitation, but it can also help farmers to use less water because it is absorbed and not as much run off. It also creates less water pollution by the pesticides and fertilizers present in most farm runoff. In water conservation, public use is often regulated. This mostly includes watering yards, washing cars and outdoor fixtures such as patio tables, and swimming pools. Cities such as Phoenix, Arizona, and Las Vegas, Nevada have also implemented the use of xeriscape landscaping to reduce the need to water outdoor plants in dry environments. In addition, Water conservation devices like low-flow toilets, shower heads, and washing machines can be required for use inside the home. Finally, desalination of seawater, water recycling, and rainwater harvesting are all things that are currently under development to build on existing water supplies and further reduce the impacts of drought in dry climates. Whatever method is used, however, extensive monitoring of precipitation and water usage are the best way to prepare for a drought, inform the public on the problem, and implement conservation strategies.

Explain why american support for britain between 1939 41 'stopped Essay

Explain why american support for britain between 1939 41 'stopped short of war' - Essay Example This explains why America and Britain remained so diplomatically cordial up until the war. Isolationism was a very popular political position during the 1930's and is very much to blame for why the United States did little to prevent the gradual slide of the world's major powers into a war that it would inevitably be drawn into as well. Hindsight is twenty-twenty, and in retrospect it appears that isolationism might not have been the best political stance for America to take between 1939 and 1941. In Ross Kennedy's publication The Ideology of American Isolationism 1931-1939, he analyzes the ideals inherent in isolationist theory. It is his view that that core belief in isolationism by the people stemmed from a lack of faith in the world power politics of the day (Kennedy, 2002). This basically boiling don't to the fact that the American people along with the American government had premature collective security, and collective security schemes lead to the practicing of power politics. Most Americans felt that to involve their country in this global competition would result in the loss of American Freedoms at home. Power politics are attributed to imperial rivalries, imperialism stemming from territorial trade of raw materials war during 1939. Germany, Italy and Japan were all deemed have-not nations. Secretary of State William Castle explained it as they want colonies as an outlet for their surplus population. They want raw materials (Kennedy, 2002). These have not countries were attempting to commandeer and then colonize France and England in hopes profiting off of their raw materials. This of course had very little to do with the Unites States, so in the tradition of isolationism, America sought to remain neutral. Another aspect of power politics that Americans disapproved of was what they considered to be devious and immoral tactics inherent in the European method. The week Nazi Germany signed its non-aggression pact with the Soviet Union, The journal known as the main proponent of isolationism, The New Republic published this statement, European affairs are still full of insincerity, devi ous methods, secrets and surprises, and we should not be taken aback at any treachery or weakness (Kennedy, 2002). It was a common belief among Americans that Europeans were not to be trusted pertaining to their use of power politics. When asked about it Herbert Hoover said, when we talk of using force of any kind, we are playing power politics at the European chess table (Kennedy, 2002). The prime example of this belief in action is the signing of the Versailles treaty, which ended World War I. It can be considered a form of coercion, since it was signed at the end of a gun. Tactics like these have a tradition in America as far back as the American revolutionary war, and they all tend to be driven by monetary gain. In his essay, The U.S. Constitution and the Declaration of Independence, Keith Krawczynksi, convinced that men were motivated primarily by economic self-interest and that class conflict pervaded human events, argues that the Founding Fathers carried out a counterrevolution by creating a reactionary document to protect their interests against popularly controlled state governments that passed cheap paper money legislation, debtor laws, and other measures that favored small farmers and artisans at the expense of wealthy creditors (2003). To

Atallah Essay Example | Topics and Well Written Essays - 250 words

Atallah - Essay Example She says â€Å"I could not resist the soldiers because they might kill me. So what else could I do?† (Henson 36). She had to endure all the hardship together with other women who had been abducted. The Japanese Imperial army had set up com garrisons which housed sex slaves or comfort women, a term commonly used to refer to these women. Slavery as commonly known, the victim is always taken against their will and forced to work or perform acts against their will. Comfort women did not have any control over their sexual activity as all they had to do was to follow orders. These women had to endure painful ordeals of being raped and hit by soldiers. The trauma Maria experienced as a comfort woman affected her for the rest of her life. She notes that one day while she was hanging some clothes to dry, she heard a woman on the radio talking about women who had been raped and her body shook all over (Henson 83). Sexual slavery is a very profound theme in this book and given that it is a woman’s firsthand experience, one gets to see just how much it affects the

Breakfast Eating Habits - UK - April 2014 Report by Researchmoz Essay Example for Free

Breakfast Eating Habits UK April 2014 Report by Researchmoz Essay

Sectional Conflics in Early America Essay -- essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  The sectional conflicts within the United States affected numerous domestic polices and even caused, in part, Andrew Jackson’s election. Andrew Jackson’s election was greatly affected by sectional differences because he represented only a portion of the United States, yet it was the portion with a majority of Electoral College votes. The sectional differences of the United States caused a protective tariff to be levied. The Missouri compromise was also affected by the differences between various differences between the divisions of the United States. Even Texas was affected by the sectional differences of the United States. The political divisions of the United States greatly affected politics between the years of 1828-1837.   Ã‚  Ã‚  Ã‚  Ã‚  Andrew Jackson’s election was caused, in part, by the sectional differences between the north and the west and south. Andrew Jackson was representative of the west and south in his virtues and views on national policy prior to entering office. He was for no tariffs and states rights in general. This meant that the majority of southern and western states supported him and allowed him to win a majority vote in the Electoral College. While his election was effected by sectional differences, his policies were not so much affected because of a rapid turn around to a federalist look of government and supporting the north in most every aspect. Andrew Jackson’s election, if not presidency, was greatly ...

An Analysis of Old Major’s Speech: Animal Farm Essay

Having served the Indian Imperial Police in Burma, George Orwell received direct experience with the lower-class of society. After joining the Republican forces in the Spanish Civil War he grew critical of the communists, and later he fought the communists in Spain, himself. This was the reason he wrote Animal Farm: to illustrate the dangers that communism, implemented in a harsh way, often led to. In this way, it could be classified as satire, i. e.on the corruption of the Russian revolution, not on communism itself. He wrote it as an anthropomorphic allegory, that is to say that the story of the Russian Revolution was written with the characters being animals rather than humans, and that it was not telling the story literally, rather it was figurative. In my opinion, this was done to engage the reader more fully and to bypass any stereotypes the reader may have about any one of the real-life characters. Out of these characters, Old Major of the Animal Farm represents Karl Marx who can be considered â€Å"the father of communist ideology† and of whom â€Å"Marxism† was named after. In the same way, Old Major was the â€Å"father of animalism† and he was the first one to articulate its ideas. Old Major’s name could be described as an aptonym; both the name he was exhibited with i. e. Willingdon Beauty and the name the animals knew him by i. e. Old Major. The Author uses the stereotype of â€Å"old, experienced and wise, hence highly regarded and respected†. His names represent these ideas: â€Å"Old† signifies age; â€Å"Major† signifies that he is respected due to his age; â€Å"Willingdon† may signify his leadership quality and â€Å"Beauty† signifies another reason he was highly regarded and respected. Due to his age, him being wise and his immense experience, both of which made him unique, the animals would naturally give him authority. He was a â€Å"prize middle white boar† i. e. unique in his appearance, but he was balanced with having â€Å"a wise and benevolent appearance†. This balance is the reason he engendered such respect that the animals would lose an hour of sleep to listen to his speech. Although his elderliness is being emphasised by him being â€Å"12 years old†, the author goes on to say that â€Å"he was still a majestic looking pig, with a wise and benevolent appearance in spite of the fact that his tushes were never cut†. The fact that his tushes were never cut yet there was still a majestic look on him, indicates that he was unique and his appearance was true, not artificial. During Old Major’s speech, he was not only a person of honour, but he is placed in a position of honour. He places himself on â€Å"a raised platform, under a lantern†, in a place of importance for the animals i.e. the barn, above the other animals, singling himself above the others and giving himself the authority he needed. In addition to this, he was there before any other animal, giving them the impression of promptness and strengthening their awareness of the graveness of the topic he was about to speak about. He took all these measures in order that he would have as much authority in the eyes of the other animals, as it would take so that it would make it impossible for the others to oppose him during the speech. It was night time: the animals were exhausted from their work and this was intensified by the fact that they were missing sleep. The threats of Mr Jones had disappeared and it was the ideal time for the animals to reflect on the reasons for their misery. Old Major had chosen the best time. The fact that they were tired may have made it even more likely for them to submit to Old Major’s view on their lives and his solutions to their problems. It would be natural for them to accept his conclusions given the circumstances they were in and the authority he had. Old Major waited till the animals were all present and silent. This also alludes to the importance of the topic he was going to talk about since it was his intention for all the animals to know about it and to give it their ultimate commitment. This was the importance of the occasion. One of the main components of his speech was the dream he claimed he had. In the eyes of the animals, Old Major, due to his high standing amongst them, was totally trustworthy and truthful. Hence the fact that he claimed he had learnt a song that was sung by the ancient animals, and which had been long forgotten, a song which appealed to their innermost cores, linked him up with superior powers in the eyes of the animals. In this manner, the dream led the animals to putting all their trust in Old Major’s ideas, since he was, in their eyes, impossible to be contradicted. With this in mind, the animals naturally fell â€Å"into the wildest excitement† upon Old Major’s recitation of the song. It threw hope into their hearts for change, made them wishful of the future and inspired them to work for the rebellion. It was also Old Major’s experience which made his dream impossible to contradict: he was unique amongst them due to his vast experience, something which no other animal on the farm could compete with, and it was based on this that he made his predictions of the future. A feature of the speech, which was arguably one of the most effective in terms of persuasion of the animals, was Old Major’s use of inclusive language i. e. language which included and united the audience i. e. the animals. He uses this technique throughout the speech, but the effect is emphasised in the 5th and 6th paragraphs. In the 5th paragraph, after mentioning the enemy, man, he justifies his conclusion about them citing the fact that man is incapable of doing the work animals do. Old Major declares about man, â€Å"he does not give milk, he does not lay eggs, he is too weak to pull the plough, he cannot run fast enough to catch the rabbits†. By mentioning this, he is not only illustrating the superiority of animal over man, but he is also engaging the animals in making them proud of what they do as opposed to men. Old Major does not confine himself to speaking (generally), rather he chooses to speak directly to each animal, capturing their fullest engagement with rhetorical questions on subjects of utmost concern for them. He emphasises the corruption of man with regards to these matters. This ultimately leads to the animals anger and outrage at the humans, further uniting them against man. He says, â€Å"You cows†¦ how many thousands of gallon of milk have you given during the last year? And what has happened to that milk which should have been breeding up sturdy calves? Every drop of it has gone down the throats of our enemies†. He repeats this with regards to the hens, † And you hens, how many eggs have you laid this year, and how many of those eggs ever hatched into chickens? â€Å". He even singles out Clover reminding her of the fate of her foals who were all sold. He emphasises his uniqueness in that he was allowed to reach his age, he uses himself as the ideal model and describes his life as â€Å"the natural life of a pig†. He highlights the fate of the porkers, saying â€Å"you will scream your lives at the block within a year†. He mentions Boxer, who was described earlier on in the text as â€Å"as strong as any two ordinary horses put together†, and describes his ultimate fate to be with the knackers who will kill him for the fox-hounds. As I have illustrated, Old Major combines inclusive language, rhetorical questions on issues of utmost concern for the audience, such as the horrors Mr Jones had prepared for their death.

Pomi

Principles of Measurement (International) For Works of Construction JUNE 1979 Published by RICS Business Services Limited, a wholly owned subsidiary of The Royal Institution of Chartered Surveyors, under the RICS Books imprint, Surveyor Court Westwood Business Park Coventry, CV4 8JE UK No responsibility for loss occasioned to any person acting or refraining from action as a result of any material included in this publication can be accepted by the authors, publisher or The Royal Institution of Chartered Surveyors. The views expressed and the conclusions drawn in this book are those of the authors. ISBN 0 85406 108 8 First Edition 1979 Reprinted 1988, 1991, 1994, 2001, 2002 and 2004  © RICS 1988. Copyright in all or part of this publication rests with the RICS, and save by prior consent of the RICS, no part or parts of this publication shall be reproduced in any form or by any means electronic, mechanical, photocopying, recording or otherwise, now known or to be devised. Printed by Q3 Print, Loughborough Foreword The use of bills of quantities is a well-established means of enabling the financial control and management of building works. The key to the success of the use of bills of quantities is a clear understanding by all parties to the contract of what is included, or excluded, in the measurement. It is this that gives rise to the requirement for clearly defined standard methods of measurement. Since these principles of measurement were first issued in 1979, many countries have developed their own more detailed standard methods. A recent survey of its international membership carried out for the RICS Construction Faculty by the Building Cost Information Service (BCIS) identified that 14 of the 32 responding countries had their own method of measurement. However, the Principles of Measurement (International) (POMI) were still being used in about half of the countries and are still widely used on international contracts. There has been a trend in the UK and elsewhere to move away from measurement-based procurement, passing the responsibility for measuring the building work down the supply chain to the contractor or sub-contractor. However, research commissioned by the Construction Faculty showed that where bills of quantities were not provided as part of the procurement process, 95% of contractors would undertake their own measurement, with the majority of this carried out in accordance with the current Standard Method of Measurement (SMM). There is no doubt that the proliferation of procurement practices will continue. However, in circumstances in which there is a degree of design certainty before the contractor is appointed, measurement-based procurement will still be appropriate. Furthermore, where design decisions are being passed down the supply chain, measurement should be undertaken at the level at which the design is carried out, in order to remove the need for duplication. It is in the interests of the industry as a whole, including its clients, that measurement is carried out consistently. There is therefore a continued need for standard methods of measurement and, by implication, a continued need for measurement skills. These principles require a detailed specification and tender drawings to be provided. RICS recognises that circumstances vary from country to country, and from contract to contract, and that the principles therefore need to be flexible in order to accommodate variations in practice and techniques. Any comments on the principles should be sent to the RICS Construction Faculty, at 12 Great George Street, Parliament Square, London, SW1P 3AD. The principles are also available in French, German and Arabic. RICS is grateful to the original authors: Michael Rainbird, Alan Charter, James Diebel, Derek Lawrence and Michael Pagulatos. Simon Cash Chairman RICS Construction Faculty December 2003 Contents SECTION GP – GENERAL PRINCIPLES GP1 Principles of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 GP2 Bills of quantities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 GP3 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 GP4 Items to be fully inclusive GP5 Description of items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/2 GP6 Work to be executed by a specialist nominated by the employer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 GP7 Goods, materials or services to be pr ovided by a merchant or tradesman nominated by the employer . . . . . . . . . . . . . . . . . .2 GP8 Work to be executed by a government or public authority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 GP9 Dayworks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2/3 GPI0 Contingencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SECTION A – GENERAL REQUIREMENTS A1 Conditions of contract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A2 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 A3 Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A4 Contractor's administrative arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 A5 Constructional plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A6 Employer's facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 A7 Contractor's facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 A8 Temporary works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A9 Sundry items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SECTION B – SITE WORK B1 Site exploration generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 B2 Trial holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 B3 Boreholes (including pumping test wells) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 B4 Site preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 B5 Demolitions and alterations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 B6 Shoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 B7 Underpinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 B8 Earthworks generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 B9 Excavation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 B10 Dredging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 B11 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 B12 Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 B13 Piling generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 B14 Driven piling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 B15 Bored piling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 B16 Sheet piling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 B17 Performance designed piling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 B18 Testing piling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 B19 Underground drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 B20 Paving and surfacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 B21 Fencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 B22 Landscaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 B23 Railway work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 B24 Tunnel excavation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 B25 Tunnel linings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 B26 Tunnel support and stabilisat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SECTION C – CONCRETE WORK C1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 C2 Poured concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 C3 Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 C4 Shuttering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 C5 Precast concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 C6 Prestressed concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 C7 Sundries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10/11 SECTION D – MASONRY D1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 D2 Walls and piers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 D3 Sills, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 04 Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 D5 Sundries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SE:CTION E – METALWORK E1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 E2 Structural metalwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11/12 E3 Non structural metalwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SECTION F – WOODWORK F1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 F2 Structural timbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 F3 Boarding and flooring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 F4 Grounds and battens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 F5 F6 F7 F8 F9 F10 Framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Finishings and fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12/13 Composlte items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Sundry items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Metalwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Ironmongery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 SECTION G – THERMAL AND MOISTURE PROTECTION G1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 G2 Coverings and linings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 G3 Damp-proof courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 G4 Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SECTION H – DOORS AND WINDOWS H1 Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 H2 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 H3 Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 H4 Ironmongery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 H5 Glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 H6 Patent glazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 SECTION J – FINISHES J1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 J2 Backgrounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 J3 Finishings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 J4 Sundries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 J5 Suspended ceilings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 J6 Decorations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 J7 Signwriting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SECTION K – ACCESSORIES K1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 K2 Partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 SECTION L – EQUIPMENT L1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 SECTION M – FURNISHINGS M1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 M2 Curtain track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SECTION N – SPECIAL CONSTRUCTION N1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 N2 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 N3 Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 SECTION P – CONVEYING SYSTEMS P1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 P2 Sundries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 P3 Work incidental to conveying systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 SECTION Q – MECHANICAL ENGINEERING INSTALLATIONS Q1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Q2 Pipework and gutterwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Q3 Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Q4 Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Q5 Automatic controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Q6 Connections to supply mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Q7 Insulation, including linings and protective coverings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Q8 Sundries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Q9 Work incidental to mechanical engineering installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 SECTI ON R – ELECTRICAL ENGINEERING INSTALLATIONS R1 Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 R2 Main circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 R3 Sub-main circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 R4 Final sub-circuits and auxiliary installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 R5 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 R6 Control gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 R7 Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 R8 Connections to supply mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 R9 Sundries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 R10 Work incidental to electrical engineering installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 APPENDIX Amendments to principles of measurement †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 1 SECTION GP – GENERAL PRINCIPLES GP1 Principles of measurement GP1. 1 Principles of measurement These principles of measurement provide a uniform basis for measuring bills of quantities for works of construction. More detailed information than is required by this document may measurement be given to define the precise nature of work or the circumstances under which it is to be carried out. Amendments to these principles of measurement for use in a particular locality or adopted for work not envisaged by this document shall be stated; an appendix is provided for such amendments to be recorded. These principles of measurement may be applied equally to the measurement of proposed works and of completed works. Bills of quantities The objects of bills of quantities are: 1. To assist in the accurate preparation of tenders, by providing for measurement of quantities on a uniform basis 2. To provide a basis for the financial control of a project, in accordance with the conditions of contract. Bills of quantities shall describe and represent the works to be carried out; work which cannot be measured accurately shall be described as approximate or given in bills of approximate quantities. Conditions of contract, drawings and specifications shall be provided with the bills of quantities. The section headings and classifications do not impose restrictions upon the format and presentation of bills of quantities. Measurement Work shall be measured net as fixed in position and each measurement shall be taken to the nearest 10 millimetres; this principle shall not apply to dimensions stated in descriptions. Unless otherwise stated, no deduction shall be made from items required to be measured by area for voids of less than 1. 00 m2. Minimum deductions of voids shall refer only to voids within the edges of measured areas; voids which are at the edges of measured areas shall always be deducted, irrespective of size. These principles of measurement may be used with other units of measurement but the particular amendments shall be stated. Notwithstanding these principles of measurement, a separate minor building or structure may be enumerated. Items to be fully inclusive Unless otherwise stated, all items shall be fully inclusive of all that is necessary to fulfill the Items to be fully liabilities and obligations arising out of the contract and shall include: 1. Labour and all associated costs 2. Materials, goods and all associated costs 3. Provision of plant 4. Temporary works 5. Establishment charges, overheads and profit. Description of items Items which are required to be enumerated. or for which an item is required, shall be fully described. Items which are to be measured by length or depth shall state the cross-sectional size and shape, girth or ranges of girths or such other information as may be appropriate; for items of pipework it shall be stated whether the diameter is internal or external. Items which are to be measured bv area shall state the thickness or such other information as may be appropriate. Items which are to be measured by weight shall state the material thickness and unit weight if appropriate (for example, ductwork). GP1. 2 GP1. 3 GP2 Bills of quantities GP2. 1 GP2. 2 GP2. 3 GP2. 4 GP3 Measurement GP3. 1 GP3. 2 GP3. 3 GP3. 4 GP3. 5 GP4 Items to be fully inclusive GP4. 1 GP5 Description of items GP5. 1 GP5. 2 GP5. 3 GP5. 4 1 GP5. 5 Notwithstanding these principles of measurement, proprietary items may be measured in a manner appropriate to the manufacturer's tariff or customary practice. The description of items in bills of quantities may refer to other documents or drawings and any reference to such information shall be understood to fulfill any requirement of these principles of measurement; alternatively, reference may be made to published information. Work to be executed by a specialist nominated by the employer Unless otherwise required by the conditions of contract, work which is required to be executed by a specialist nominated by the employer shall be given as a sum; such sum shall be exclusive of contractor's profit and in each case an item shall be given for the addition of profit. An item shall be given in each case for assistance by the contractor, which shall include: 1. Use of contractor's administrative arrangements 2. Use of constructional plant 3. Use of contractor's facilities 4. Use of temporary works 5. Space for specialist's offices and stores 6. Clearing away rubbish 7. Scaffolding required by the specialist, giving particulars 8. Unloading, distributing, hoisting and placing in position items of plant, machinery or the like, giving particulars. Goods, materials or services to be provided by a merchant or tradesman nominated by the employer Unless otherwise required by the conditions of contract, goods, materials or services which are required to be provided by a merchant or tradesman nominated by the employer shall be given as a sum; such sum shall be exclusive of contractor's profit and in each case an item shall be given for the addition of profit. Fixing goods and materials shall be given in accordance with the relevant clauses in these principles of measurement; fixing shall be understood to include unloading, storing, distributing and hoisting the, goods and materials. Particulars shall be given of any requirements for the contractor to arrange for delivery or pay any costs of conveying goods or materials. Work to be executed by a government or public authority Unless otherwise required by the conditions of contract, work which may only be carried out or by a government or public authority shall be given as a sum; such sum shall be exclusive of contractor's profit and in each case an item shall be given for the addition of profit. An item shall be given in each case for assistance by the contractor as described in clause GP6. . Dayworks The cost of labour in dayworks shall be given as a sum; alternatively, a schedule of the different categories of labour may be given containing a provisional quantity of hours for each category. The cost of labour included in a sum or schedule shall include wages, bonuses and all allowances paid to operatives directly engaged on dayworks (including those operating mechanical plant and transport) in accordance with t he appropriate employment agreement or, where no such agreement exists, the actual payments made to the work people concerned. The cost of materials in dayworks shall be given as a sum; alternatively, 3 schedule may be given containing a provisional quantity of different materials. The cost of materials included in a sum or schedule shall be the net invoiced price, including delivery to site. The cost of constructional plant employed exclusively in dayworks shall be given as a sum; alternatively, a schedule of the different categories of plant may be given containing a provisional quantity of hours, or such other period of time as may be appropriate, for each category. The cost of constructional plant included in a sum or schedule shall include fuel, consumable stores, repairs, maintenance and insurance of plant. An item shall be given for the addition of establishment charges. overheads and profit to each of the sums or schedules of labour, materials or plant. Description of items (continued) GPS. 6 GP6 GP6. 1 Work to be executed by a specialist nominated by the employer GP6. 2 GP7 GP7. 1 GP7. 2 Goods, materials or services to be provided by a merchant or tradesman nominated by the employer GP8 GP8. 1 Work to be executed by a government or public authority GP8. 2 GP9 GP9. 1 Dayworks GP9. 2 GP9. 3 GP9. 4 GP9. 5 GP9. 6 GP9. 7 2 Dayworks (continued) GP9. 8 Establishment charges, overheads and profit shall include: 1. Costs related to the employment of labour 2. Costs related to the storage of materials, including handling and waste in storage 3. Contractor's administrative arrangements 4. Constructional plant, except plant employed exclusively on dayworks 5. Contractor's facilities 6. Temporary works 7. Sundry items. Contingencies GP10 GP 10. 1 Unless otherwise required by the conditions of contract, contingencies shall be given as a sum; no item shall be given for the addition of profit. SECTION A – GENERAL REQUIREMENTS A1 Conditions of contract A1. 1 A1. 2 Conditions of contract A schedule of the clause headings shall be set out in the bills of quantities. Where there is an appendix to the conditions of contract requiring insertions to be made, a schedule of the insertions shall be set out in the bills of quantities. Specification Where the specification contains clauses related to any of the following General Requirements, the bills of quantities shall make reference to the appropriate clauses. Restrictions Particulars shall be given of any restrictions, which shall include: 1. Access to and possession or use of the site 2. Limitations of working space 3. Limitations of working hours 4. The maintenance of existing services on, under or over the site 5. The execution or completion of the work in any specific order, sections or phases 6. Items of a like nature. Contractor's administrative arrangements An item shall be given for contractor's administrative arrangements, which shall include: 1. Site administration 2. Supervision 3. Security 4. Safety, health and welfare of workpeople 5. Transport of workpeople. Constructional plant An item shall be given for constructional plant, which shall include: 1. Small plant and tools 2. Scaffolding 3. Cranes and lifting plant 4. Site transport 5. Plant required for specific trades. Employer's facilities Particulars shall be given of any facilities required for the employer or the employer's representatives, which shall include: 1. Temporary accommodation (for example, offices, laboratories, living accommodation), including heating, cooling, lighting, furnishing, attendance or related facilities 2. Telephones, including costs of calls; alternatively, the cost of calls may be given as a sum 3. Vehicles 4. Attendance of staff (for example, drivers, laboratory assistants) 5. Equipment (for example, surveyor laboratory equipment) 6. Special requirements for programmes or progress charts 7. Any other facilities (for example, progress photographs, signboards). A2 Specification A2. 1 A3 Restrictions A3. 1 A4 Contractor's administrative arrangements A4. l A5 Constructional plant A5. 1 A6 Employer's facilities A6. 1 3 A7 A 7. 1 Contractor's facilities An item shall be given for facilities required by the contractor, which shall include: 1. Accommodation and buildings, including offices, laboratories, compounds, stores, messrooms and living accommodation 2. Temporary fencing, including hoardings, screens, roofs and guardrails 3. Temporary roads, including hardstandings and crossings 4. Water for the works; particulars shall be given if water will be supplied to the contractor 5. Lighting and power for the works; particulars shall be given if current will be supplied to the contractor 6. Temporary telephones. Particulars shall be given where the nature or extent of the facilities is not at the discretion of the contractor. Temporary works An item shall be given for temporary works, which shall include: 1. Traffic diversion 2. Access roads 3. Bridges 4. Cofferdams 5. Pumping 6. De-watering 7. Compressed air for tunnelling. Particulars shall be given where the nature r extent of the temporary works is not at the discretion of the contractor. Sundry items An item shall be given for sundry items, which shall include: 1. Testing of materials 2. Testing of the works 3. Protecting the works from inclement weather 4. Removing rubbish, protective casings and coverings and cleaning the works at completion 5. Traffic re gulations 6. Maintenance of public and private roads ‘ 7. Drying the works 8. Control of noise and pollution 9. All statutory obligations Particulars shall be given where the nature or extent of the sundry items is not at the discretion of the contractor. Sundry items Temporary works Contractor's facilities A7. 2 A8 A8. 1 A8. 2 A9 A9. 1 A9. 2 SECTION B – SITE WORK B1 B1. 1 B1. 2 B1. 3 B2 B2. 1 Site exploration generally Keeping records of site observations, site tests and laboratory tests shall be given as an item. Samples, site observations, site tests, a oratory tests an analyses shall be given as an item, Providing reports shall be given as an item. Trial holes Excavating trial holes shall be measured by depth, taken along the centre line, stating the number and the maximum depth below commencing level. Earthwork support which is not at the discretion of the contractor shall be measured by depth. Boreholes (including pumping test wells) Driving boreholes shall be measured by depth, taken along the centre line, stating the number and the maximum depth below commencing level; raking boreholes shall be so described. Lining which is not at the discretion of the contractor shall be measured by depth. Cap pings shall be enumerated. Boreholes (including pumping test wells) Trial holes Site exploration generally B2. 2 B3 B3. 1 B3. 2 B3. 3 4 B4 Site preparation B4. 1 B4. 2 B4. 3 Site preparation Removing isolated trees shall be enumerated. Removing hedges shall be measured by length. Site clearance, which shall include removing vegetation, undergrowth, bushes, hedges, trees or the like, shall be measured by area. Demolitions and alterations The location of each item shall be given. Unless otherwise stated, old materials shall be understood to become the property of the contractor and shall be cleared away; old materials required to remain the property of the employer shall be so described. Removing individual fittings, fixtures, engineering installations or the like from an existing structure shall each be given as an item. Demolishing individual structures (or part thereof) shall each be given as an item; alternatively, demolishing all structures on a site may be given as an item. Cutting openings in existing structures and alterations to existing structures shall each be given as an item; making good all work damaged shall be understood to be included. Temporary screens and roofs shall be given as an item. Shoring Shoring incidental to demolitions and alterations, together with clearing away and making good all work damaged, shall be understood to be included. Shoring (other than that incidental to demolitions and alterations) shall be given as an item, stating the location; clearing away and making good all work damaged shall be understood to be included. Particulars shall be given where the design of the shoring is not at the discretion of the contractor. Shoring which is required by the specification to be left in position shall be so described. Underpinning Work in underpinning shall be given under an appropriate heading, stating the location. Unless otherwise stated, work shall be measured in accordance with the appropriate sections of this document. Temporary support shall be given as an item; particulars shall be given where the design of the temporary support is not at the discretion of the contractor. Excavation shall be measured by volume, taken to the outside line of the projecting foundations or to the outside line of the new foundations (whichever is the greater), classified as follows: 1. Excavation in preliminary trenches down to the base of the existing foundations 2. Excavation below the base of the existing foundations. Cutting away projecting foundations shall be measured by length. Earthworks generally Any information available concerning the nature of the ground and strata shall be provided with the bills of quantities. The quantities for excavation, dredging or tunnelling shall be understood to be the bulk before excavation, and no allowance shall be made for any ‘orking space or subsequent variation in bulk; existing voids shall be deducted. Multiple handling of materials and transporting about the site shall be understood to be included; multiple handling which is required by the specification shall be so described in the item of disposal. Earthwork support shall be given as an item. Excavation in rock shall be so described; alternatively, it may be measured as extra over excavation (that is, B5 Demolitions and alterations B5. 1 B5. 2 B5. 3 B5. 4 B5. 5 B6 Shoring B6. 1 B6. 2 B6. 3 B6. 4 B7 Underpinning B7. 1 B7. 2 B7. 3 B7. 4 B7. 5 B8 Earthworks generally B8. 1 B8. 2 B8. 3 B8. 4 B8. 5 5 the volume of rock shall be measured bur no deduction shall be made from the volume of excavation in which the rock occurs). B8. 6 For the purposes of measurement rock is defined as any material met with which is of such size or position that. n the opinion of the employer's representative. It can only be removed by means of wedges, special plant or explosives. Excavation Unless otherwise stated, excavation shall be measured by volume as the void which is to be occupied by the permanent construction, or vertically above any part of the permanent construction, classified as follows: 1. Oversite excavation to remove top soil, stating the average depth 2. Excavation to reduce levels 3. Excavation in cuttings 4. Basement excavation 5. Trench excavation to receive foundations, which shall include pile caps and ground beams 6. Pit excavation to receive foundation bases, stating the number 7. Excavation for diaphragm walls, stating the width of the permanent construction and the type of support fluid. Excavation of trenches for service pipes, drain pipes, cables or the like shall each be measured by length, stating the average depth; disposal and filling shall be understood to be included. For excavation in tunnelling see clause B24. Dredging Dredging shall be measured by volume, stating the location and limits; unless otherwise stated, measurement shall be understood to be taken from soundings. Disposal Disposal of material arising from excavation, dredging or tunnelling shall be measured by volume as equal to the volume of excavation, dredging or tunnelling and each shall be classified as follows: 1. Backfilled into excavation 2. Backfilled in making up levels 3. Backfilled oversite to make up levels, giving details of special contouring, embankments or the like 4. Removed, which shall include providing a suitable tip. Filling Filling material (other than that arising from excavation, dredging or tunnelling) shall be measured by volume as equal to the void to be filled, classified as follows: 1. Filled into excavation 2. Filled in making up levels 3. Filled oversite to make up levels, giving details of special contouring, embankments or the like. Piling generally For the purposes of measurement, driven piling shall include timber, precast concrete or metal piles. Other piling systems (for example, preformed casing with concrete filling) shall be measured in accordance with the principles for driven piling or bored piling as may be appropriate. Unless otherwise stated, reinforcement shall be measured in accordance with Section C. Driven piling Supplying piles shall be measured by length, stating the number; reinforcement shall be given separately. Heads and shoes shall be enumerated. Driving piles shall be measured by length, taken from the pile point in contact with the ground when pitched to the pile point when driven, stating the number; driving piles on rake shall be so described. Cutting off tops of piles and connections for lengthening piles shall be enumerated. Earthworks generally (continued) B9 B9. 1 Excavation B9. 2 B9. 3 B10 B10. 1 Dredging B11 B11. 1 Disposal B12 B12. 1 Filling B13 B13. 1 B13. 2 Piling generally B13. 3 B14 B14. 1 B14. 2 B14. 3 Driven piling B14. 4 6 B15 Bored piling B15. 1 Bored piling Boring for piles shall be measured by length, taken from the formation level of the ground to the bottom of the pile hole, stating the number; the measurement shall include for blind boring when the pile top is to be below the formation level of the ground. Boring through rock shall be measured by length as extra over boring for piles (that is, the length of boring through rock shall be measured but no deduction shall be made from the total length of boring). Linings for piles shall be measured by length. Disposal of material arising from boring shall be measured in accordance with clause B11. Concrete filling shall be measured by volume. Cutting off tops of piles and forming enlarged bases shall be enumerated. Sheet piling The measurements for sheet piling shall be taken along the centre line. Supplying sheet piling shall be measured by area, taken as the area when in final position. Corner piles or the like shall be measured by length. Driving sheet piling shall be measured by area, taken from the formation level of the ground to the bottom edge of the sheet piling when driven; strutting and waling and withdrawing sheet piling shall be understood to be included. Cutting sheet piling shall be measured by length. Sheet piling which is required by the specification to be left in position shall be so described. Performance designed piling Performance designed piles shall be enumerated; reinforcement and disposal of material arising from boring shall be understood to be included. Details shall be given when the pile top is to be below the formation level of the ground. Testing piling Testing piling, which shall include trial piles and testing working piles, shall be given as an item. Underground drainage Drain pipes shall be measured by length, taken along the centre line over all fittings; drain pipes within inspection chambers or the like shall be so described and shall be understood to drainage include fixings and supports. Drain fittings in the length (for example, bends, junctions) shall be enumerated, grouped together for each size of pipe and described as ‘fittings'. Drain accessories (for example, gullies, traps) shall be enumerated; concrete surrounds and additional excavation shall be understood to be included. Concrete beds and coverings for drain pipes shall each be measured by length, stating the diameter of the pipe; surrounds to vertical pipes shall be so described and shall be understood to include formwork. Inspection chambers or the like shall be enumerated; alternatively, they may be measured in accordance ‘ith the relevant sections of this document and given under an appropriate heading. Connections to existing drains shall be enumerated, subject to clause GP8. Paving and surfacing Paving and surfacing shall be measured by area. Expansion joints and ‘ater stops shall be measured by length. B15. 2 B15. 3 B15. 4 B15. 5 B15. 6 B16 Sheet piling B16. 1 B16. 2 B16. 3 B16. 4 B16. 5 B16. 6 B17 B17. 1 B17. 2 B18 Testing piling B18. 1 B19 Underground drainage B19. 1 B19. 2 B19. 3 B19. 4 B19. 5 B19. 6 B20 Paving and surfacing B20. 1 B20. 2 7 B20. 3 B21 B21. 1 Channels, curbs, edgings or the like shall be measured by length; curved work shall be so described. Fencing Fencing, which shall include posts and supports in the length, shall be measured by length; excavating pits, disposal and filling shall be understood to be included. Special posts (for example, gate posts, straining posts) shall be enumerated; excavating pits, disposal and filling shall be understood to be included. Gates, barriers or the like shall be enumerated. Finishes shall be measured in accordance with Section J. Landscaping Cultivating and fertilising ground shall be measured by area. Soiling, seeding and turfing shall be measured by area. Hedges shall be measured by length. Trees and shrubs shall be enumerated. Railway work Track, guard rails and conductor rails shall each be measured by length, taken along the centre line over all fittings; curved work shall be so described. Sleepers and chairs shall be enumerated. Switches and crossings shall be enumerated, classified as follows: 1. Switches and turnouts 2. Diamond crossings 3. Single slip crossings 4. Double slip crossings 5. Other switches and crossings. Ballast shall be measured by volume, without deduction for track, classified as follows: 1. Bottom ballast, placed before the track is laid 2. Top ballast, placed after the track is laid. Concrete track foundations shall be measured by length, except that overwidth foundations for switches and crossings shall be measured by area; reinforcement and shuttering shall be understood to be included. Bitumen filler to complete rail assemblies shall be measured by length. Buffer stops, wheel stops or the like shall be enumerated. Signalling installations shall be measured in accordance with Section L or Section R. Tunnel excavation Excavation shall be measured by volume as the void which is to be occupied, including the volume of permanent linings, grouped as may be appropriate to identify different lengths and classified as follows: 1. Straight tunnels 2. Straight shafts 3. Curved tunnels 4. Curved shafts 5. Tapered tunnels 6. Tapered shafts 7. Other cavities, which shall include transitions, breakaways and intersections between shafts and tunnels. Forward probing shall be measured by length, stating the number of probes. For disposal see clause B11. Paving and surfacing (continued) Fencing B21. 2 B21. 3 B21. 4 B22 B22. 1 B22. 2 B22. 3 B22. 4 B23 B23. 1 Landscaping Railway work B23. 2 B23. 3 B23. 4 B23. 5 B23. 6 B23. 7 B23. 8 B24 B24. 1 Tunnel excavation B24. 2 B24. 3 8 B25 Tunnel linings B25. 1 Tunnel linings Poured concrete linings shall be measured by area, stating whether spray or cast concrete, classified as follows: 1. lining 2. Secondary lining. Preformed segmental tunnel linings shall be enumerated. Tunnel support and stabilisation Timber supports shall be measured by volume. Sprayed concrete supports and reinforcement shall be measured by area. Rock bolts shall be measured by length. Face packers shall be enumerated. Metal arch supports shall be measured by weight. Injection of grout materials shall be measured by weight. B25. 2 B26 Tunnel support and stabilisation B26. 1 B26. 2 B26. 3 B26. 4 B26. 5 B26. 6 SECTION C – CONCRETE WORK C1 Generally C1. 1 C1. 2 Generally Reinforced poured concrete and plain poured concrete shall each be so described. Poured concrete required by the specification to be placed, compacted, cured or otherwise treated in a particular manner shall be so described. No deduction shall be made for voids less than 1. 00 m3, nor for the volume of any reinforcement or structural metal enclosed in the concrete, except that voids caused by boxed or tubular structural metalwork shall always be deducted. Unless otherwise described, horizontal surfaces of concrete shall be understood to be tamped. Poured concrete Unless otherwise stated, poured concrete shall be measured by volume, classified as follows: 1. Foundations, which shall include combined or isolated bases 2. Pile caps, which shall include ground beams 3. Blinding 4. Beds, which shall include roads and footpaths, stating the thickness 5. Suspended slabs, which shall include floors, landings, roofs or the like, stating the thickness 6. Walls, which shall include attached columns, stating the thickness 7. Columns, which shall include casing to metal stancheons 8. Beams (measured below the slab), which shall include lintels and casing to metal beams 9. Staircases, which shall include steps and strings 10. Diaphragm walls 11. Other classifications (for example, tunnel linings, bridge abutments) as may be appropriate. Poured concrete suspended slabs of special construction, including floors, landings, roofs or the like, shall be measured by area; coffered and troughed slabs shall be so described, giving details of solid margins or the like. Where an item is required to be measured by volume and the thickness stated, then items of differing thickness may be grouped together, provided that the range of the different thicknesses is stated. Reinforcement The weight of bar reinforcement shall be the net weight without addition for rolling margin, supports, spacers or tying wire. Bar reinforcement shall be measured by weight, stating the diameter; bars of iffering diameters shall be given separately. Fabric reinforcement shall be measured by area, without addition for laps. C1. 3 C1. 4 C2 Poured concrete C2. 1 C2. 2 C2. 3 C3 Reinforcement C3. 1 C3. 2 C3. 3 9 C3. 4 C4 C4. 1 Reinforcement shall be given as an item where the detailed design work is the responsibility of the contractor. Shuttering Unless ot herwise stated, shuttering shall be measured by area, taken as the net area in contact with the finished face of concrete, classified as follows: 1. Soffits; shuttering to soffits of special construction shall be so described 2. Sloping soffits, which shall include soffits of staircases 3. Sloping upper surfaces, which shall include surfaces more than 15 ° from horizontal 4. Sides of foundations, which shall include bases, pile caps and ground beams 5. Sides of walls, which shall include attached columns 6. Returns to walls, which shall include ends, projections and reveals of openings or recesses 7. Sides and soffits of beams, which shall include lintels and breaks in soffits; isolated beams shall be so described 8. Sides and soffits of sloping beams, which shall include lintels and breaks in soffits; isolated beams shall be so described 9. Sides of columns 10. Staircases, which shall include treads, isers and strings but exclude soffits 11. Other classifications (for example, tunnel linings, bridges, bridge abutments) as may be appropriate. Shuttering to edges, which shall include face of curb or upstand or break in upper surface of floor, shall be measured by length; items of differing height may be grouped together, provided that the range of different heights is stated. Grooves, which shall include throats, rebates, chamfers or the like, 2500 mm2 sectional area or over shall be measured by length; grooves less than 2500 mm2 sectional area shall be understood to be included. Shuttering may be enumerated where it is more appropriate to do so (for example, decorative features). Shuttering which is required by the specification to be left in position shall be so described. Shuttering to curved, conical and spherical surfaces shall each be so described. Shuttering to provide a special finish shall be so described. Unless otherwise stated, if the volume of concrete has not been deducted, shuttering to the faces of a void shall be understood to be included. Precast concrete Moulds for precast units shall be understood to be included. Reinforcement shall be measured in accordance with clause C3 and given under an appropriate heading; alternatively, it may be described in the item. Floor slabs, partition slabs or the like shall be measured by area. .' Lintels, sills, duct covers or the like shall be measured by length; alternatively, duct covers may be measured by area. Structural units (for example, beams, stanchions, tunnel rings) shall be enumerated. Padstones, cappings or the like shall be enumerated. Prestressed concrete Prestressed concrete work shall be given under an appropriate heading. Prestressed concrete shall be measured by volume, classified in accordance with clause C2. Reinforcement shall be measured in accordance with clause C3; supporting steel wires or cables shall be measured by weight. Shuttering shall be measured in accordance with clause C4, stating whether to pre-tensioned or post-tensioned members. Sundries Surfaces finished to falls or cross-falls shall be measured by area. Reinforcement (continued) Shuttering C4. 2 C4. 3 C4. 4 C4. 5 C4. 6 C4. 7 C4. 8 C5 C5. 1 C5. 2 Precast concrete C5. 3 C5. 4 C5. 5 C5. 6 C6 C6. 1 C6. 2 C6. 3 Prestressed concrete C6. 4 C7 C7. 1 Sundries 0 Sundries (continued) C7. 2 C7. 3 C7. 4 C7. 5 Surface finishes shall be measured by area, except that tamped finishes shall be understood to be included. Expansion material or the like shall be measured by area. Designed joints, water stops, cast-in channels or the like shall be measured by length. Forming sinkings, channels or the like shall be measured by length and, where approp riate, the item may include additional excavation, hardcore, shuttering and concrete; alternatively, they may be enumerated. Fixings, ties, inserts or the like shall be enumerated; alternatively, they may be measured by area. Mortices, holes or the like shall be understood to be included. C7. 6 C7. 7 SECTION D – MASONRY D1 Generally D1. 1 D1. 2 D2 Walls and piers D2. 1 Generally Sloping, battering and curved work shall each be so described. Reinforced masonry shall be so described. Walls and piers Walls and piers shall be measured by area, classified as follows: 1. Walls; integral piers shall be measured as walls of combined pier and wall thickness 2. Walls built against other construction 3. Cavity walls measured as a composite item, including skins and cavity; alternatively, the skins and cavity may each be measured by area. Closing cavity walls at ends or around openings shall be understood to be included 4. Isolated piers. Faced or fair faced work shall each be so described; alternatively, it may be measured as extra over walls, stating whether faced or fair faced on one or both sides (that is, the area of faced or fair faced work shall be measured but no deduction shall be made from the area of walling on which the faced or fair faced work occurs). Sills, etc. Sills, copings, oversailing or receding courses or the like shall be measured by length. Arches shall be measured by length. Reinforcement Reinforcement shall be measured in accordance with clause C3; alternatively, fabric reinforcement may be measured by length. Sundries Concrete filling to cavities shall be measured by area. Expansion joints or the like shall be measured by length. Air bricks or the like shall be enumerated. D2. 2 D3 Sills, etc. D3. 1 D3. 2 D4 Reinforcement D4. 1 D5 Sundries D5. 1 D5. 2 D5. 3 SECTION E – METALWORK E1 Generally E1. 1 Generally The weight of metalwork shall be the net weight, without addition for rolling margin or welding material and without deduction for holes, splay cuts, notches or the like. Welded, riveted or bolted work shall each be so described. Structural metalwork Unless otherwise stated, structural metalwork shall be measured by weight, classified as follows: 1. Grillages 2. Beams 3. Stanchions E1. 2 E2 Structural metalwork E2. 1 11 4. 5. 6. 7. E2. 2 E2. 3 E2. 4 E2. 5 Portal frames, stating the number Roof trusses, stating the number Support steelwork, which shall include sheeting rails, braces, struts or the like Other classifications, as may be appropriate. Structural metalwork (continued) Fittings (for example, caps, brackets) shall be given as an item. Fixings (for example, bolts, distance pieces, rivets) shall be given as an item. Wedging and grouting bases or the like shall be enumerated. Holding down bolts or the like shall be enumerated; temporary boxes and grouting shall be understood to be included. Protective treatment shall be given as an item. Non-structural metalwork Floor plates, duct covers, sheet metal coverings and linings or the like shall be measured by area. Bearers, balustrades, handrails (except where included with a staircase), frames or the like shall be measured by length. Matwell frames, cat ladders, gates, staircases or the like shall be enumerated. Non-structural metalwork E2. 6 E3 E3. 1 E3. 2 E3. 3 SECTION F – WOODWORK F1 F1. 1 Generally Timber which is sawn (that is, not milled) and timber which is finished (that is, milled) shall each be so described. Descriptions of timber members shall state whether the sizes are basic (that is, before machining) or finished (that is, milled, within permitted deviations). Structural timbers Structural timbers shall be measured by length, classified as follows: 1. Floors and flat roofs 2. Pitched roofs 3. Walls 4. Kerbs, bearers or the like 5. Cleats, sprockets or the like. Strutting and bridging between joists shall be measured by length, taken overall the joists. Boarding and flooring Unless otherwise stated, boarding and flooring shall be measured by area, without addition for joints or laps, classified as follows: 1. Floors, which shall include landings 2. Walls, which shall include returns, reveals of openings or recesses and attached and unattached columns 3. Ceilings, which shall include attached and unattached beams and soffits of staircases 4. Roofs, which shall include tops and cheeks of dormers and sides and bottoms of gutters, stating whether flat, sloping or vertical; firring pieces and bearers shall be understood to be included. Eaves and verge boards, which shall include fascias, barge boards or the like, shall be measured by length. Fillets and rolls shall be measured by length. Grounds and battens Open-spaced grounds and battens shall be measured by area, taken overall. Individual grounds and battens shall be measured by length. Framework Framework shall be measured by area, taken overall; alternatively, it may be measured by length. Framework Grounds and battens Boarding and flooring Structural timbers Generally F1. 2 F2 F2. 1 F2. 2 F3 F3. 1 F3. 2 F3. 3 F4 F4. 1 F4. 2 F5 F5. 1 12 F6 Finishings and fittings F6. 1 Finishings and fittings Finishings shall be measured by length, classified as follows: 1. Cover fillets, which shall include architraves, skirtings or the like 2. Beads, which shall include stops or the like 3. Edgings, which shall include window boards, nosings or the like. Unless otherwise stated, fittings shall be measured by length, classified as follows: 1. Work tops, which shall include seats or the like 2. Handrails or balustrades. Shelving shall be measured by area; alternatively, it may be measured by length. Backboards or the like shall be enumerated. Built-up members shall be so described. Plastic coverings or the like shall be described with the item on which they occur, stating whether on one or more faces; alternatively, they may be measured separately by area. Sheet linings shall be measured by area, classified as follows: 1. Walls, which shall include returns, reveals of openings or recesses and attached and unattached columns 2. Ceilings, which shall include attached and unattached beams and soffits of staircases. Composite items Unless otherwise stated, composite items (which shall mean items which might be fabricated off-site whether or not they are fabricated off-site) shall be enumerated; all metal work or the like shall be understood to be included. Any associated work (for example, decorations) shall be measured in accordance with the relevant sections of this document. Sundry items Finished surfaces on sawn items shall be measured by length. Metalwork Metalwork items associated with woodwork shall be enumerated; alternatively, waterbars or the like may be measured by length. Ironmongery Units or sets of ironmongery shall be enumerated. F6. 2 F6. 3 F6. 4 F6. 5 F6. 6 F6. 7 F7 Composite items F7. 1 F7. 2 F8 Sundry items F8. 1 F9 Metalwork F9. 1 F10 Ironmongery F10. 1 SECTION G – THERMAL AND MOISTURE PROTECTION G1 Generally G1. 1 G1. 2 G2 Coverings and linings G2. l Generally Work shall be measured flat without addition for laps or seams. Curved, spherical and conical work shall each be so described. Coverings and linings Unless otherwise stated, roofing, tanking, waterproof coveri

Renesancia Essays - Free Essays, Term Papers, Research Papers

Renesancia Essays - Free Essays, Term Papers, Research Papers Renesancia - renaissance - ( fr.,nem.,ang .)- obnovenie, znovuzrodenie 1.etapa novoveku - homo - clovek, miera vsetkeho vznik vTaliansku 14.-16. storocie ostatne krajiny Europy 15.-16. storocie Slovensko do roku 1650 Charakteristicke znaky : vkult. aduch. vyvoji je subezna snabozenskou reformaciou nadvazuje na antiku ideal cloveka ako mysliaca tvoriva bytos moc cirkvi upada, do popredia sa dostava mestianstvo prevazne mestska kultura, suvisi srozvojom miest, kraovskych a kiezaci ch dvorov, mensie slachticke salony(hudba), vladcovia boli hudobnici, hraci, spevaci, skladatelia ( ang . Henrich V.,VIII., skotsky kra Jakub IV., cisar Karol V. ...) literatura: priklon knarodnym jazykom, svetska lyrika- laska hudba: ud. piesne: Limburska kronika (14.st.), Jan Silvan: kancional (spevnik- Pisne nove na sedm zalmu kajiciich ana jine zalmy) rozvoj obchodu, trhoveho hospodarstva, od samostatnych remesiel az kmanufakture nove znalosti zmatematiky, fyziky, zemepisu, astronomie Znaky : znovuzrodenie antiky, odmietanie principov spolocenskeho zriadenia, cirkevnej ideologie, vcentre zaujmu clovek naturalizmus senzualizmus individualizmus racionalizmus antropocentrizmus proporcionalita, krasa, harmonia, rovnovaha, zrozumitenos - G. Vasari (1511-1571) - autor zivotopisov najvy znamnejsich talianskych maliarov, socharov, architektov 1x pouzil tento termin (renesancia) - vsnahe charakterizova tendencie 2 prudy : 1) znovuzrodenie tradicnych hodnot antiky 2) naalej rozvoj stredovekych tradi ci i - osobnosti z literatury: Dante Aligieri (Bozska komedia), Francesco Petrarca , Giovanni Boccaccio , Francois Villon , Francois Rabelais ( taliansko ) Lope de Vega Miquel y Cervantes Saavedra ( spanielsko ), W.Shakespeare ( ang .) -astronomovia: Mikulas Kopernik , Kristof Kolumbus, Tycho de Brahe - Giordano Bruno (alchymista), Galileo Galilei (zakladate modernej exaktnej vedy) - Jan Gutenberg - objavil sposob tlacenia knih, 1. kniha: Biblia - Ottaviano dei Petruci - 1498 vynasiel novu tlac - Kaspar Tieffenbrucker vyhotovil prve husle (1530) Architektura: - na zaklade stylu tzv. neskorej gotiky- okolo r. 1400 najma vo Fr ., Tal ., Cechach, Nem ., Hol. - Taliansko: 1 ) Rana (1420-1500) 2) Vrcholna (1500-1550) 3) Neskora/manierizmus (1550/1580-1650) - cie manierizmu : tlmoci vnutorne pocity umelca- cit fantazia- prisposobuje sa cloveku - svetska stavba : palace, mestske domy, radnice, zamky, opevnenia, letne sidla, obytne domy, nemocnice, cechove domy, kniznice cirkevne - kostoly, chramy, baziliky.. -uplatuje sa princip zlateho rezu ( komponenty stavieb sa odvodzuju od proporcii udskeho tea ) Zlaty rez/podiel alebo bozsky rez je iracionalne cislo smnohymi zaujimavymi vlastnosami. Geometricke tvary odvodene od tohto cisla sa veuropskej kulture povazuju za esteticky vemi priazlive. Oznacuje sa pismenkom (delta) arovna sa priblizne 1.618034. -strohos, bez ozdob, cisto, klasicky -fasada : plosna, stena : miesto realizacie maliarskej vyzdoby - klenby, hladky aobly stp, obluk - v arkadach - pilastre ( polopiliere ), balustrady - okna : obdznikovy tvar -material: lomovy kame, mramor, tehla, drevo, kov, uhlie -rozvoj urbanizmu - architekti su uz znami(v stredoveku boli anonymni) Pamiatky : Louvre (Pariz), Versailles, zamky na Loire , Escorial , radnice - Antverpy, Augsburg Slovensko : rozvoj Mateja Korvina, Radnica vLevoci, Thurzov dom vBB, opevnenia- Komarno, Levice, NZ, radnica vBardejove, Levoci Cesko : letohradok kraovnej Anny vPrahe- Belveder , letohradok vPrahe- Hviezda, Scharzenbersky palac na Hradcanoch, zamky v Litomysli , Telci , Vekych Losinach , Nachode

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Base Definition in Chemistry In chemistry, a base is a chemical species that donates electrons, accepts protons, or releases hydroxide (OHs of bases include alkali metal hydroxides, alkaline earth metal hydroxides, and soap. Key Takeaways: Base Definition A base is a substance that reacts with an acid in an acid-base reaction.The mechanism through which a base works has been argued throughout history. Generally, a base either accepts a proton, releases a hydroxide anion when dissolved in water, or donates an electron.Examples of bases include hydroxides and soap. Word Origin The word base came into use in 1717 by French chemist Louis Là ©mery. Là ©mery used the word as a synonym for Paracelsus alchemical concept of a matrix in alchemy. Paracelsus proposed natural salts grew as a result of a universal acid mixing with a matrix. While Là ©mery may have used the word base first, its modern usage is generally attributed to French chemist Guillaumes of Rouelles bases included alkalis, metals, oils, or absorbent earth. In the 18th century, salts were solid crystals, while acids were liquids. So, it made sense to early chemists that the material that neutralized the acid somehow destroyed its spirit and allowed it to take solid form. Properties of a Base A base displays several characteristic properties: Aqueous base solution or molten bases dissociate into ions and conduct electricity.Strong bases and concentrated bases are caustic. They react vigorously with acids and organic matter.Bases react in predictable ways with pH indicators. A base turns litmus paper blue, methyl orange yellow, and phenolphthalein pink. Bromothymol blue remains blue in the presence of a base.A basic solution has a pH greater than 7.Bases have a bitter flavor. (Dont taste them!) Types of Bases Bases may be categorized according to their degree of dissociation in water and reactivity. A strong base completely dissociates into its ions in water or is a compound that can remove a proton (H) from a very weak acid. Examples of strong bases include sodium hydroxide (NaOH) and potassium hydroxide (KOH).A weak base incompletely dissociates in water. Its aqueous solution includes both the weak base and its conjugate acid.A superbase is even better at deprotonation than a strong base. These bases have very weak conjugate acids. Such bases are formed by mixing an alkali metal with its conjugate acid. A superbase cannot remain in aqueous solution because it is a stronger base than the hydroxide ion. An example of a superbase in sodium hydride (NaH). The strongest superbase is the orthos include silicon dioxide (SiO2) and NaOH mounted on alumina. Solid bases may be used in anion exchange resins or for reactions with gaseous acids. Reaction Between an Acid and a Base An acid and a base react with each other in a neutralization reaction. In neutralization, an aqueous acid and aqueous base produce an aqueous solution of salt and water. If the salt is saturated or insoluble, then it may precipitate out of the solution. While it may seem like acids and bases are opposites, some species can act as either an acid or a base. In fact, some strong acids can act as bases. Sources Jensen, William B. (2006). The origin of the term base. The Journal of Chemical Education. 83 (8): 1130. doi:10.1021/ed083p1130Johll, Matthew E. (2009). Investigating chemistry: a forensic science perspective (2nd ed.). New York: W. H. Freeman and Co. ISBN 1429209895.Whitten, Kenneth W.; Peck, Larry; Davis, Raymond E.; Lockwood, Lisa; Stanley, George G. (2009). Chemistry (9th ed.). ISBN 0-495-39163-8.Zumdahl, Steven; DeCoste, Donald (2013).  Chemical Principles  (7th ed.). Mary Finch.