Technical Questions

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What is an air-entraining admixture?

Q. What is an air-entraining admixture?


A. It is an admixture that causes the development of a system of microscopic air bubbles in cement paste during mixing, usually to increase its resistance to freezing and thawing and to improve workability (ACI 212.3R).


References: SP-1(02); ACI CT-23; E4-12; ACI 212.3R-16; SP-288; ACI 306R-16; ASTM C260; ASTM C494

Topics in Concrete: Admixture; Concrete Fundamentals; Materials; Cold Weather

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