Question

What is the loading rate used in compressive strength test?

(a) 14 N/mm^2 per hour

(b) 14 N/mm^2 per minute

(c) 20 N/mm^2 per minute

(d) 40 N/mm^2 per hour

I have been asked this question by my college professor while I was bunking the class.

Query is from Tests on Bricks in chapter Materials for Construction of Basic Civil Engineering

Answer 1

Correct answer is (b) 14 N/mm^2 per minute

Easy explanation: As per IS codes, the loading on brick specimen in a CTM should be uniform at rate of 14 N/mm^2 per minute.