Guideline for labor in cement concrete
In building construction cement concrete is main constituents and one of the costly item in construction. It is used as Plain Cement Concrete and Reinforced Cement Concrete. Cement Concrete have many gradients as cement, fine aggregate, coarse aggregate and water. Plain cement concrete is strong in compression where as weak in tension. To strengthen concrete in tension MS Steel bars is used in cement concrete and it is called Reinforced Cement Concrete (RCC).
The structural engineer design the building according to load and bearing capacity of building and give cement concrete ratio to be used in different parts of building according to the requirement of building keeping in view the safety of structure. In cement concrete/ RCC centering and shuttering is very necessary part and do it carefully for taking full strength of structure.
Labor Guideline
At many time it has been observed that after laying the cement concrete according to design not give full/ required strength due to defective laying of cement concrete. For taking full strength from cement concrete mix, it is very important that laying process of cement concrete should be according to prescribed specification. Here are some points to be follow at the time of laying cement concrete.
- While laying Cement Concrete, the mix should be machine mixed and vibrated.
- Before laying cement concrete it should be ensure, all the gradients to be used in cement concrete such as cement, fine aggregate, coarse aggregate and water should be according to specification and sufficient in quantity.
- Check that there should be proper arrangement for measuring the different gradient of concrete mix. The ratio should be strictly according to design.
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The cement concrete is a mixture of cement fine aggregate, coarse aggregate and water.
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