According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as______________?
A. Ec = = 5700
B. Ec = = 570
C. Ec = = 5700fck
D. Ec = where fck N/mm2 = 700 is the characteristic strength in
Related Questions on Design of Concrete Structures Mcqs
A. segregation
B. compaction
C. shrinkage
D. bulking
Approximate value of shrinkage strain in concrete, is________________?
A. 0.003
B. 0.0003
C. 0.00003
D. 0.03
Workability of concrete is directly proportional to________________?
A. aggregate cement ratio
B. time of transit
C. grading of the aggregate
D. all of above
A. tcr – rcs = tct
B. fcr>fcs>fc
C. fcr D. fc5>fcr>fC
Strength of concrete increases with________________?
A. increase in water-cement ratio
B. increase in fineness of cement
C. decrease in curing time
D. decrease in size of aggregate