Question

What are plasticizers?

(a) Which adds water for workability

(b) Which reduces water for workability

(c) Which decreases workability at the same water content

(d) Which oxidizes water for workability

I had been asked this question in an internship interview.

Asked question is from Plasticizers in division Admixtures and Construction Chemicals of Concrete Technology

Answer 1

Right answer is (b) Which reduces water for workability

Easy explanation: The organic substances or combinations of organic and inorganic substances, which allow a reduction in water content for the given workability, or give higher workability at the same water content.