Question

At constant workability, what is the reduction in mixing water?

(a) 1-2%

(b) 50%

(c) .1-.4%

(d) 5-15%

I got this question in an interview for internship.

Enquiry is from Plasticizers topic in section Admixtures and Construction Chemicals of Concrete Technology

Answer 1

Right answer is (d) 5-15%

Explanation: At constant workability, the reduction in mixing water is expected to be of the order of 5% to 15%.