Question

Two benefits of air content in concrete:

1. Durability - longer lasting and beneficial because it reduces blistering/pockets which help the concrete last

2. Control strength and Potential Surface Delaminations - stabilizes bubbles formed during mixing and impacts mixing speed, time, and capacity

Are these two benefits of air content correct?

Answer 1

Answer:

Yes

Air entrained concrete is a concrete which consists of air bubbles which are created by introducing some surfactants or chemical substances etc.,

It increases Durability and Control strength and potential surface delaminations.

The above mentioned two benefits of air entrained concrete are correct and including those some more are there they are

1.its workability is better than ordinary concrete

2.heat of hydration compared to ordinary concrete is less

3.Unit weight of air entrained concrete is less than ordinary concrete

4.compared to ordinary concrete bleeding and segregation is less in air entrained concrete.