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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?
- Air-entraining agent
- Retarder
- Accelerator
- 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.