Civil Engineering MCQAE Level Civil Engineering
Gypsum is added to Portland cement mainly to control:
Building MaterialsConstruction Materials, Practices, Planning and ManagementHARD
Choose the correct answer
A
ultimate shrinkage only
B
aggregate impact value
C
brick absorption
D
flash setting due to C3A
Correct Answer
D. flash setting due to C3A
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Gypsum retards the rapid reaction of C3A and prevents flash set.
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