Question

What is accelerator?

(a) Which speed up the initial set of concrete

(b) Which delays the initial set of concrete

(c) Which speed up the final set of concrete

(d) Which delays the final set of concrete

The question was asked by my college director while I was bunking the class.

My doubt stems from Accelerators and Retarders topic in portion Admixtures and Construction Chemicals of Concrete Technology

Answer 1

Correct option is (a) Which speed up the initial set of concrete

Explanation: An admixture used to speed up the initial set of concrete is called accelerator.