Question

The design period of cement concrete road is taken as ____________

(a) 30

(b) 12

(c) 5

(d) 20

This question was addressed to me in an internship interview.

My enquiry is from Design of Road Pavement topic in section Valuation, Reports Technical and Design Data of Civil Engineering Drawing

Answer 1

Correct answer is (a) 30

To explain: The design period of cement roads is usually taken as 30 years but they can even last longer if properly maintained and designed.