Question

After finishing concrete surface must be kept ___________

(a) Dry

(b) First dry it and then wet it

(c) First wet it and then dry it

(d) Wet

I have been asked this question during an interview for a job.

This key question is from Concrete Repair System in division Admixtures and Construction Chemicals of Concrete Technology

Answer 1

Correct answer is (d) Wet

To elaborate: After finishing concrete surface must be kept wet, so that it’d be prevented from evaporation.