Airentrained
Airentrained, or air-entrained, refers to cementitious mixes that incorporate a controlled distribution of microscopic air voids formed during mixing by air-entraining agents (AEA). These voids are very small and evenly dispersed through the hardened paste, typically on the order of tens to a few hundred micrometers in diameter.
The primary purpose of the air void system is to provide space for water to expand when
Typical properties of air-entrained concrete include an air content of roughly 3 to 7 percent by volume
Applications are common in structures exposed to freezing and thawing, such as pavements, bridges, and building