Question

What is the limitation of plasticizers?

(a) A good plasticizer is one which does not cause air-entrainment in concrete > .1-.2%

(b) A good plasticizer is one which does not cause air-entrainment in concrete > 5%

(c) A good plasticizer is one which does not cause air-entrainment in concrete > 10-20%

(d) A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%

I had been asked this question by my college professor while I was bunking the class.

The above asked question is from Plasticizers in division Admixtures and Construction Chemicals of Concrete Technology

Answer 1

Correct option is (d) A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%

The best I can explain: A good plasticizer is one which does not cause air-entrainment in concrete is greater than 1-2%.