Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 1 (Q.No. 10)
10.
In the cement the compound quickest to react with water, is
Discussion:
33 comments Page 2 of 4.
Ram said:
8 years ago
C3A is characteristically fast reacting with water and may lead to an immediate stiffening of paste and this process is termed as a flash set. The role of gypsum added in the manufacture of cement is to prevent such a fast reaction.
Sumant said:
8 years ago
C4af is involve first in rate of hydration.
Yasir said:
7 years ago
Tricalcium aluminate results into flash setting of cement and in order to prevent flash setting Gypsum is added.
Rabindra said:
7 years ago
What is the difference between false set and flash set of cement?
Rabindracbs@gmail.com said:
7 years ago
What is Ettringite?
Rabindra said:
7 years ago
Flash set is the property of concrete by which upper surface of concrete become hard without setting the inner portion.
Rabindra said:
7 years ago
Flash set is the property of concrete by which upper surface of concrete become hard without setting the inner portion.
Karun said:
7 years ago
I think C4AF is the right one because it reacts instantly with water where C3A produces the highest heat of hydration so it sets quickly and produces volume Change.
Sharma said:
7 years ago
I think C4AF is the right one because the quantity of alumina in it is more as compare to C3A, alumina is responsible for quick setting for this it reacts instantly with water, so that's why it reacts quickly with water.
Abhishek said:
7 years ago
C4AF is quickest to react.
It has the highest rate of heat evolution among all other Bogue's compound.
It has the highest rate of heat evolution among all other Bogue's compound.
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