Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 4 (Q.No. 30)
30.
Setting time of cement increases by adding
Discussion:
37 comments Page 2 of 4.
Bugti Mehdi said:
2 years ago
Adding calcium chloride accelerates the setting time and decreases it while adding gypsum retards the setting time and increases it.
Awanti said:
7 years ago
Gypsum is a retarder. It slows down the reaction of cement with water and increases the setting time of cement. So, A is correct.
Aksp said:
9 years ago
@All.
It is talking about setting time not setting!
There is the difference between them!
So, the given answer is Right.
It is talking about setting time not setting!
There is the difference between them!
So, the given answer is Right.
Rajesh said:
8 years ago
I agree retarder increase setting time to delay takes place. Where as in accelerator decrease setting time to react fastly.
Ihcan khan said:
4 years ago
The given answer is absolutely right, gypsum slow down the setting and increases the setting time of concrete.
Swapnil pokulwar said:
9 years ago
Gypsum is retarded and calcium chloride acts as an accelerator.
So, calcium chloride is the correct answer.
So, calcium chloride is the correct answer.
Kushal said:
5 years ago
Rate of setting is increased by adding calcium chloride but not setting time. So, Answer A is correct.
Snehal nikam said:
1 decade ago
Gypsum is used for decrease the setting time and calcium chloride used for increase the setting time.
Devraj sablaniya said:
8 years ago
Gypsum used as retarder it's slow down the reaction rate so initial setting time will increase.
Suman said:
9 years ago
Calcium chloride is 100% right answer gypsum is decreasing for setting time of cement.
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