Air entraining agents – Definition – 5 Types

We intentionally entrain microscopic air bubbles in concrete to enhance its durability against freeze and thaw. Air entraining agent or pore-forming agents are admixtures that are used to incorporate air into the concrete mix. They enhance the workability of concrete and improve resistance against salt scaling or freeze and thawing.…continue reading →

Properties of Hardened Concrete

The word hardened concrete means the concrete which has been initially set and is not fresh like a workable and plastic concrete. So we can say that the word hardened concrete specifies its stage of "plasticity" which is gone and now the concrete is in hardened form after setting. The…continue reading →