Question

The lime-milk can be utilized after and for:

(a) 2-3 days for putty

(b) 2-3 hours for putty

(c) 2-3 days for waste water treatment

(d) 2-3 hours for waste water treatment

This question was posed to me in exam.

Asked question is from Calcination and Slaking of Lime topic in chapter Materials for Construction of Basic Civil Engineering

Answer 1

Right choice is (a) 2-3 days for putty

To explain: The lime-milk is allowed to stand for the requisite time of 2-3 days.  It matures itself and forms lime putty.