Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 7 (Q.No. 19)
19.
To retard the initial setting time of cement, the compound responsible, is
Discussion:
13 comments Page 1 of 2.
Swarup Munj said:
5 years ago
Option B is correct.
Gypsum will react with the tricalcium aluminate mineral (C3A) which is the compound mainly responsible for the early setting time of cement. The reaction of gypsum with (C3A) will retard the setting time of cement (i.e Prolong the setting time) which is necessary for concreting operations to be completed perfectly.
Gypsum will react with the tricalcium aluminate mineral (C3A) which is the compound mainly responsible for the early setting time of cement. The reaction of gypsum with (C3A) will retard the setting time of cement (i.e Prolong the setting time) which is necessary for concreting operations to be completed perfectly.
Ghulam Nabi said:
6 years ago
The terms cement and concrete are used interchangeably, although cement is actually an ingredient of concrete. Gypsum is often added to cement and concrete to slow down the drying time. Cement dries quickly and retarding that process allows workers to pour the mixture into the various forms or frames needed.
(1)
Shahid Ali Baseeji said:
1 month ago
Gypsum increases the initial setting of cement; instead, the dicalcium silicate retard the initial setting of cement, giving the cement a high final setting.
So the correct option should be C.
So the correct option should be C.
Apcivili@n said:
9 years ago
The answer is D.
Gypsum retards initial setting, not initial setting time.
Gypsum prolongs the initial setting time!
There is the difference!
Gypsum retards initial setting, not initial setting time.
Gypsum prolongs the initial setting time!
There is the difference!
(1)
Chandan kumar said:
5 years ago
The tricalcium aluminate and Tetracalcium aluminoferrite compounds are responsible for the initial setting of cement. So, option D is correct.
Saugat Oli said:
7 years ago
Gypsum is added to accelerate the setting time. Whereas the C3S is responsible for initial set.
So, A is the correct answer.
So, A is the correct answer.
Giritharan said:
8 years ago
Gypsum is added to cement to increase the initial setting time.
Option D is the correct answer.
Option D is the correct answer.
PRASHANTH said:
9 years ago
Gypsum increases the initial setting time of cement.
Jeet said:
6 years ago
Option D is the correct answer. I too agree.
Jeet said:
6 years ago
D is the right option. I too agree.
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