Design of Concrete Structures-Data Intensity 3 Multiple Questions and Answers.




1.As compared to ordinary portland cement, high alumina cement has______?
A. higher initial setting time but lower final setting time
B. lower initial setting time but higher final setting time
C. higher initial and final setting times
D. lower initial and final setting times

2.Bulking of sand is maximum if moisture content is about____?
A. 2%
B. 4%
C. 6%
D. 10%

3.1% of voids in a concrete mix would reduce its strength by about______?
A. 5%
B. 10%
C. 15%
D. 20%

4.Finer grinding of cement___?
A. affects only the early development of strength
B. affects only the ultimate strength
C. Both A and B
D. None of Above

5.Poisson’s ratio for concrete?
A. remains constant
B. increases with richer mixes
C. decreases with richer mixes
D. None of the above

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