Proper amount of entrained air in concrete results in__________? 0 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) (X)
(C) ((2)and (3) (X)
(D) (3)and (4) (X)

Answers: Proper amount of entrained air in concrete results in  0 1. better workability 2. better resistance to freezing and thawing 3. lesser workability 4. less resistance to freezing and thawing The correct answer is (1) and (2).