avijit roy chowdhury


{ City } kolkata
< Country > india
* Profession *
User No # 82856
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Question { Rites, 14144 }

What is logic behind the use of Steel bar insted of gold
bar?


Answer

Coefficient of thermal expansion of concrete is 2 x 10⁶
where as coefficient of thermal expansion of steel is 2.1 x
10⁶ which is more-less same. For this reason in concreting
steel is used not gold.

Is This Answer Correct ?    1 Yes 0 No

Question { bscpl, 9645 }

Name the standard sand for concrete tests


Answer

Wellgrade Coarse grain sand

Is This Answer Correct ?    1 Yes 0 No


Question { 7826 }

what is the difference between compaction and consolidation?


Answer

Compaction is a mechanical process to remove voides & it
required less time Where As Consolidation is a natural
process to remove voides & it required large time.

Is This Answer Correct ?    8 Yes 2 No