Question

It is about __________ times the tensile stress determined by the splitting test.

(a) Equal

(b) .5

(c) 1.5

(d) 2

This question was posed to me in a national level competition.

My enquiry is from Destructive Testing in portion Repair Technology for Concrete Structures of Concrete Technology

Answer 1

The correct option is (c) 1.5

The best I can explain: The theoretical maximum tensile stress at the bottom face at failure is calculated. This is termed the modulus of rupture. It is about 1.5 times the tensile stress determined by the splitting test.