Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 4 (Q.No. 30)
30.
Setting time of cement increases by adding
gypsum
hydrogen peroxide
calcium chloride
sodium oxide
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
37 comments Page 4 of 4.

Ali Raza said:   5 years ago
@All.

Gypsum is retarder: it decreses setting of cement hence increases setting time because more time is required for the cement to set. Calcium chloride is accelerator: it accelerates the setting of cement hence decreases the setting time as less time is required for cement to set.

Sanoj kerketta said:   4 years ago
Opt C is the correct answer.

Mujahid aziz said:   4 years ago
Gypsum is a retarder:it means setting time increase and reduce early setting of cement.

Accelerator: as the name indicate it increase the setting and decrease setting time.

Ihcan khan said:   4 years ago
The given answer is absolutely right, gypsum slow down the setting and increases the setting time of concrete.

Izhar Ahmad said:   3 years ago
Agre, Gypsum is the correct answer.

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.

Jitendra yadav said:   1 year ago
A is the right answer.


Post your comments here:

Your comments will be displayed after verification.