Question

What is the 7 day bending failure stress in N/mm^2?

(a) 40

(b) 1500

(c) 3.3

(d) 180

This question was addressed to me by my college professor while I was bunking the class.

Question is taken from Concrete Cloth, Polymer Impregnated Concrete topic in division Special Concrete and Concreting Methods of Concrete Technology

Answer 1

Right answer is (c) 3.3

Best explanation: This test is based on BS EN 12467:2004 and the 7 day bending failure stress is 3.3 N/mm^2.