The effect of adding calcium chloride in concrete is________________?
A. e="color: #003f1a;">2. to decrease shrinkage

B. (2)and (3)

C. (1) and (3)

D. e="color: #003f1a;">3. to increase setting time

E. (2)and (4)

F. ="color: #003f1a;">1. to increase shrinkage
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