Design of Concrete Structures

A. Ec = = 5700
B. Ec = = 570
C. Ec = = 5700fck
D. Ec = where fck N/mm2 = 700 is the characteristic strength in

A. reduces workability
B. increases bleeding
C. increases shrinkage
D. increases strength

A. increase in water-cement ratio
B. increase in fineness of cement
C. decrease in curing time
D. decrease in size of aggregate

A. tcr – rcs = tct
B. fcr>fcs>fc
C. fcr<fcs
D. fc5>fcr>fC

A. aggregate cement ratio
B. time of transit
C. grading of the aggregate
D. all of above

A. 0.003
B. 0.0003
C. 0.00003
D. 0.03

A. segregation
B. compaction
C. shrinkage
D. bulking