Civil Engineering - Concrete Technology - Discussion


The entrained air in concrete

[A]. increases workability
[B]. decreases workability
[C]. decreases resistance to weathering
[D]. increases strength
[E]. neither affects workability nor strength.

Answer: Option A


No answer description available for this question.

Yasir said: (Dec 1, 2016)  
Air-entrained concrete contains billions of microscopic air cells per cubic foot. These air pockets relieve internal pressure on the concrete by providing tiny chambers for water to expand into when it freezes.

Jay Raval said: (Aug 12, 2021)  
Right answer is B. It reduces the strength and workability.

Vinay said: (Sep 20, 2021)  
It can reduce strength and more workability? Right?

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