Question

The light-weight concrete is prepared by ________

(a) Mixing Portland cement with sawdust in specified proportion in the concrete

(b) Using coke-breeze, slag as aggregate in the concrete

(c) Mixing Al in the concrete

(d) Mixing Fe in the concrete

This question was addressed to me in an interview for job.

I'm obligated to ask this question of Mix Design of LWC, Aerated Concrete in section Special Concrete and Concreting Methods of Concrete Technology

Answer 1

The correct choice is (b) Using coke-breeze, slag as aggregate in the concrete

The best I can explain: The light-weight concrete is prepared by using coke-breeze, cinder or slag as aggregate in the concrete.