Aggregate is called fine aggregate if it is completely retained on
Anonymous Poll
25%
0.15 mm sieve
4%
0.30 mm sieve
54%
4.75 mm sieve
17%
None of these
IES CIVIL
Aggregate is called fine aggregate if it is completely retained on
Here in question it is asked retained not passing
So ans will be 0.15mm
So ans will be 0.15mm
How does strength of concrete differ with age of concrete?
Anonymous Poll
60%
Increases
19%
Decreases
2%
No effect
20%
Increases then decreases
IES CIVIL
How does strength of concrete differ with age of concrete?
Answer is A) increases
The strength of concrete increases with age of concrete due to hydration of dicalcium silicate
The strength of concrete increases with age of concrete due to hydration of dicalcium silicate
The addition of Cacl2 in concrete results in
Anonymous Poll
18%
Increased shrinkage
54%
Decreased setting time
9%
Decreased shrinkage
19%
Increased setting time
IES CIVIL
The addition of Cacl2 in concrete results in
Answer is B) Decreased setting time .
Cacl2 is an accelerator.
Cacl2 is an accelerator.
Commonly used lime in white washing is
Anonymous Poll
26%
Quick lime
54%
Fat lime
6%
Lean lime
14%
Hydraulic lime
Le-chatelier's method can be used to determine
Anonymous Poll
9%
Fineness of cement
86%
Soundness of cement
4%
Fineness of aggregate
2%
Compressive strength of cement
IES CIVIL
Le-chatelier's method can be used to determine
B) Soundness of cement
Le-chatelier's method is used to check soundness of cement due to the presence of unburnt lime.
Le-chatelier's method is used to check soundness of cement due to the presence of unburnt lime.
The standard consistency test is done in a
Anonymous Poll
2%
Blaine's apparatus
8%
Le-chatelier's apparatus
5%
Vane apparatus
84%
Vicat's apparatus
IES CIVIL
The standard consistency test is done in a
D) Vicat's apparatus
Vicat's apparatus is used to determine standard consistency, initial setting time and final setting time of cement.
Vicat's apparatus is used to determine standard consistency, initial setting time and final setting time of cement.