Question

The modulus of electricity of a semi-flexible pavement is ___________

(a) lower than concrete

(b) greater than concrete

(c) equal to concrete

(d) is always zero

I have been asked this question in an interview for internship.

The question is from Design of Flexible Pavements topic in division Design of Flexible & Rigid Pavement of Geotechnical Engineering II

Answer 1

Correct answer is (a) lower than concrete

The explanation is: The semi flexible pavement possess appreciable flexural strength but its modulus of electricity is lower than concrete. This is due to the fact that the semi flexible pavement is made of dry-lean concrete or soil cement.