Concrete Technology and Design of Concrete Structures Admixtures which cause early setting, and hardening of concrete are called retarders workability admixtures accelerators air entraining agents retarders workability admixtures accelerators air entraining agents 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>fcs>fc. fc5>fcr>fC fcr tcr – rcs = tct fcr>fcs>fc. fc5>fcr>fC fcr tcr – rcs = tct ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Prestress loss due to friction occurs only in post-tensioned beams in both post-tensioned and preten-sioned beams None of these only in pretensioned beams only in post-tensioned beams in both post-tensioned and preten-sioned beams None of these only in pretensioned beams ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures 1% of voids in a concrete mix would reduce its strength by about 20% 5% 10 % 15% 20% 5% 10 % 15% ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The load carrying capacity of a helically reinforced column as compared to that of a tied column is about 10% less 5% more 10% more 5% less 10% less 5% more 10% more 5% less ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The percentage of voids in cement is approximately 40% 50% 70% 60% 40% 50% 70% 60% ANSWER DOWNLOAD EXAMIANS APP
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