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Which admixture is commonly used to improve the permeability of concrete?

34. Which admixture is commonly used to improve the permeability of concrete?

1. Air-entraining agent
2. Retarder
3. Accelerator
4. Plasticizer

Answer

The correct answer is: D) Plasticizer

Explanation

Concrete is pumped and placed more easily when plasticizers are added to it to improve its flowability without sacrificing strength.