General Knowledge - General Science - Discussion
Discussion Forum : General Science - Synthetic Materials (Q.No. 19)
19.
Gypsum is added to cement clinker to
Discussion:
22 comments Page 1 of 3.
Ashutosh Gaur said:
8 years ago
Your answer is wrong. Gypaum is added to increase the setting of cement not to decrease it. For under water construction the quantity of gypsum is increased to increase the setting rate of cement.
Krish said:
1 decade ago
Setting means how quickly it becomes hardened, if gypsum not added then it hardened fast that is not useful in making building so it is added to increase setting time.
I think you understood it.
I think you understood it.
Gaurav singh tomar said:
9 years ago
Gypsum is used to increase the setting time of cement. Rapid hardening cement has more gypsum that is why it is used in underwater construction. So in place of decrease it should be increase.
Kavitha said:
1 decade ago
Because gypsum decrease the time of setting but in case of constructing bridges in across oceans we need to decrease the amount of adding gypsum in cement that will sets quickly.
Mosin said:
9 years ago
While doing construction work of dam & in water bodies there is water segregated quickly. So we add less gypsum. Gypsum inversely proportional to setting time.
Sudip said:
5 years ago
@all.
Gypsum is added to INCREASE SETTING TIME (i.e. To prolong setting time) which means, DECREASE the RATE OF SETTING.
Gypsum is added to INCREASE SETTING TIME (i.e. To prolong setting time) which means, DECREASE the RATE OF SETTING.
MD MAHFOOZ ALAM said:
7 years ago
Gypsum is added to cement to decrease the setting rate of cement that is increase setting time.
Ankur said:
6 years ago
I think gypsum is inversely proportional to setting time so it decreases.
Logeswaran said:
8 years ago
Gypsym has to be added for to prevent the flash setting in cement.
Mystry said:
1 decade ago
Why gypsum only no other substance has properties like gypsum?
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