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  • INTERVIEW QUESTIONS CIVIL ENGINEERING DETAILS
    Question :
    How do you determine Specific gravity of cement?
    Category Civil Engineering Interview Questions
    Rating (0.2) By 186 users
    Added on 6/16/2011
    Views 402
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    Answers:

    Cement is usually purchased as a powdery substance that is mixed with sand, aggregate, gravel, and water to form concrete. Since the cement itself is usually a powder, it is hard to measure a standard value for its specific gravity. In addition, since cement is usually not used by itself, knowing its specific gravity is not PArticularly useful.

    A more useful question is "What is the typical density of concrete?" A rule of thumb answer is that normal cured concrete has a density of about 150 pounds per cubic foot. This includes the weight of the cement, sand, aggregate, and that PArt of the water that chemically binds with the cement to form the concrete. Since water weighs about 62.4 pounds per cubic feet, concrete is about 2.4 times as heavy. Thus, the specific gravity of concrete is about 2.4. If you took cement and mixed it with water, you would eventually have a hard lump of useless cement and it would also have a specific gravity of between 2 and 2.4.



    The specific Gravity of cement is 3.15. It can be determine through same procedure of finding the specific gravity of fine aggregates by using Le Chatelier's apparatus. It is very useful in construction of roads it can be used as filler in asphalt mix design



    Posted by: Muhammad Ali Raza    

    Contact Muhammad Ali Raza Contact Muhammad Ali Raza

    specific gravity of the cement determined by the Le chatelier's apparatus.finding the specific gravity of the sand and coarse aggregate with the help of water.but in this le chatelier's apparatus specific gravity of the cement determined with the help of Benzene. because if we use water. it will hydrated with the cement content.



    Posted by: Subramanian    

    Contact Subramanian Contact Subramanian

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