- (A) 10 to 15% more
- (B) 15 to 20% more
- (C) 20 to 25% more
- (D) 25 to 50% more
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- (A) gypsum
- (B) calcium chloride
- (C) sodium silicate
- (D) all of the above
- (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) 5%
- (B) 10 %
- (C) 15%
- (D) 20%
- (A) 2 %
- (B) 4%
- (C) 6%
- (D) 10%
- (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
- (A) rounded
- (B) elongated
- (C) angular
- (D) all of the above
