The importance of addressing environmental issues for a construction project that will benefit the community and local construction firms is vitally important on everyone’s agenda; it will help firm’s reputation with the local community and authority massively.…
Time, Material, labour, cost are most efficient things to construct any civil engineering structures. But at present the available requirement of labour is more difficult for any civil engineering constructions and also construction time is increase and labour cost is high and material waste is increase. For avoiding these problems Precast Concrete Technology is come to exist.…
History 3000 – Mini Assignment 3. The main advantage of having history on film is that movies are much more stimulating mentally. Students are likely to succeed more during their educational experience if things are on film. On the one hand, students are probably likely recall more factual information when they read text and watch a movie than they do when we read the text alone.…
Concrete operations are the third stage of Piagetian cognitive development, during which children develop logical but not abstract thinking (Papalia p.351). The concrete operational stage begins around age seven and continues until approximately age eleven. During this time, children gain a better understanding of mental operations. Children begin thinking logically about concrete events, but have difficulty understanding abstract or hypothetical concepts.…
Cement production has always remained a concern for global warming due to the high energy requirements and the release of significant amounts of CO2. Besides, ACC has embarked upon an ambitious project for substituting five per cent of its annual coal requirement of about five million tons over the next three years with waste generated by cities and industries. It has already replaced two per cent of its coal requirement with all types of wastes.…
Construction sites are found both within urban and rural areas, often in the close proximity of homes. Due to their proximity to homes and the materials used, construction sites may generate home pollution. This involves air, water, soil, and/or noise pollution. Additionally, construction work may reveal existing subsurface pollution. In such situation, construction work is stopped and costly remediation is needed. Thus, construction work may generate construction pollution problems affecting both home owners and construction site owners. Moreover, construction workers (especially in the past) may be exposed to pollution. These aspects will be discussed in more details below, along with tips and measures to prevent and face pollution, as well as to recover the costs.…
During this period we experience a desire to copy the adults around us and take initiative in creating play situations. We make up stories with Barbie’s and Ken’s, toy phones and miniature cars, as well as playing out roles in a trial universe.…
Air Quality: Good air quality is vital for people’s health and it is an essential part of our environment. Large factories and other large buildings which produce a large amount of pollution tend to be sited away from populated areas to help prevent pollution entering our breathable atmosphere over towns and cities; indeed, large chimneys push the pollution further up into the atmosphere avoiding any fallout to local inhabitants. Large amounts of pollution can result in smog, which can lead too poor visibility as well as breathing difficulties for the cities and inhabitants. Smog can deplete oxygen levels, which can cause asthma, bronchitis and other lung diseases. This is why it is important that we consider air quality at the planning stage, so we can help prevent producing large amounts of pollution this being from, tools, equipment and other large machineries, especially if it’s in a large population area, as our actions on the construction site could affect the local community.…
3. China is enforcing tight rules aimed at preventing construction work from causing environmental pollution, while advanced facilities are being installed to treat construction waste. By the year 2000, over 90 percent of waste water from construction is expected to be treated.…
Ingredients for concrete are cement, fine aggregate, coarse aggregate and water. The best concrete can be obtained by mixing the ingredients in correct proportions. The ideal proportion of concrete will be that, which produces greatest strength and solidity at the least cost. In estimating the quantities of ingredients for cement concrete it should keep in mind that voids of coarse aggregates are filled up by sand and voids of fine aggregates are filled up by cement. The concrete mix of 1: 1: 2 and 1: 11/2: 3 are mostly used for water retaining structures. The concrete mix 1: 2: 4 is most commonly used for R.C.C. construction. The mix proportion of 1: 3: 6 and 1: 4: 8 are used in lean concrete works. The concept behind the proportioning of concrete mixes is that the resulting concrete is densest and strongest with least amount of cement. Following are the methods of proportioning concrete:…
ENVIRONMENTAL GUIDELINES FOR SETTING UP STONE CRUSHING PLANT Stone Crushing Industry is an important industrial sector in the State engaged in producing crushed stone which is raw material for various construction activities like construction of Roads, Highways, Bridges, Buildings, Canals, etc. Transportation of stone over long distances adds to cost of the crushed stone products, crushers need to be necessarily located nearer to the demand centers such as Cities, Bridges, Highways, Canals, etc. Stone Crushers also need electricity supply and man power for operation. It also needs access roads for the movement of mined stone as well as crushed stone products. These stone crushers though socio-economically an important sector, give rise to substantial quantity of fugitive fine dust emissions resulting in to health hazards to the workers as well as surrounding population. The dust also adversely affects visibility, reduces growth of vegetation and hampers aesthetics view of the area. In order to prevent/control these emissions and complains thereof, GPCB decided to come up with the guidelines to be considered for setting up of Stone Crushing Plant in the State, which is as under: 1) The siting criteria :…
In the environment, the world’s developed countries has used cement kilns to burn hazardous waste, waste for more than 20 years, which not only reduce waste, harmless, and slso can use waste as fuel to save coal, so that recycling the waste.…
The environmentally friendly building materials and construction methods will be introducing in this assignment (e.g. precast concrete). And the government how to promote green building and sustainable construction in Hong Kong.…
Concrete is one of the most commonly used structural materials. It is made by simply mixing cement, aggregate, sand and water in the “right” proportion. The strength of concrete varies even with the slightest variation in the ratio or quality of its ingredients. Concrete properties are highly influenced by the water type used and its proportion in the concrete mix, but actually there is little knowledge of the effects of different, alternative water sources used in concrete mix design. Therefore, the identification of the level and nature of contamination in available water sources and their subsequent influence on concrete properties is becoming increasingly important.…
To make the environment free from pollution an attempt was made to construct the water tank using the discarded pet bottles. Since there is construction materials scarcity, we need to go for an alternative construction material. The three basic needs for human life are food, shelter and clothing. But in developing countries like India there is no shelter for poor people. By considering this, the shelter can be constructed at low cost. Making of brick emits carbon-di-oxide, the emission can be eliminated by using pet bottles in construction. The construction using pet bottles is a part of green building concept hence it will be eco-friendly. The environment is made free from pollution by utilization of discarded bottles. The water tank was constructed and checked for its feasibility. The structural stability was checked by various methods like rebound hammer test, seepage test and ultrasonic pulse velocity test. The ultimate aim of our project is to compare the cost of construction using pet bottles & bricks.…