Question

While manufacturing the concrete masonry bricks, the cement-aggregate ratio should not be thinner than __________

(a) 1:6

(b) 1:3

(c) 3:4

(d) 1:4

The question was asked in a job interview.

My question is taken from Composite Masonry in division Composite Masonry of Construction & Building Materials

Answer 1

Correct option is (a) 1:6

To explain: While manufacturing the concrete masonry bricks, the cement-aggregate ratio should not be thinner than 1:6. The aggregate should have a mixture with the proportion of fine aggregate being 60% and coarse aggregate being 40%.