Proper amount of entrained air in concrete results in__________?

Building Materials and Construction 11/04/2021

1. better workability
2. better resistance to freezing and thawing
3. lesser workability
4. less resistance to freezing and thawing The correct answer is:

 

A. (1) and (2)
B. (1)and(4)
C. ((2)and (3)
D. (3)and (4)

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