Concrete Technology and Design of Concrete Structures In case of hand mixing of concrete, the extra cement to be added is 5% 10% 20% 15% 5% 10% 20% 15% ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Admixtures which cause early setting, and hardening of concrete are called retarders air entraining agents workability admixtures accelerators retarders air entraining agents workability admixtures accelerators ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by fcr fc5>fcr>fC fcr>fcs>fc. tcr – rcs = tct fcr fc5>fcr>fC fcr>fcs>fc. tcr – rcs = tct ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The average permissible stress in bond for plain bars in tension is decreased by 10% for bars in compression decreased by 25% for bars in compression increased by 25% for bars in compression increased by 10% for bars in compression decreased by 10% for bars in compression decreased by 25% for bars in compression increased by 25% for bars in compression increased by 10% for bars in compression ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Finer grinding of cement does not affect the strength both (a) and (b) affects only the early development of strength affects only the ultimate strength does not affect the strength both (a) and (b) affects only the early development of strength affects only the ultimate strength ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Poisson’s ratio for concrete increases with richer mixes remains constant None of these decreases with richer mixes increases with richer mixes remains constant None of these decreases with richer mixes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS