Question

Which form of brick stone composite masonry is commonly used at locations where rubble stone is available in huge amounts, but ashlar is not available?

(a) Brick-backed ashlar masonry

(b) Brick-backed stone slab facing

(c) Rubble-backed brick masonry

(d) Stone-backed masonry

I got this question in my homework.

The origin of the question is Stone Composite Masonry topic in division Composite Masonry of Construction & Building Materials

Answer 1

The correct option is (c) Rubble-backed brick masonry

For explanation I would say: Bricks and stones can be simultaneously used in three forms of composite masonry – brick-backed ashlar masonry, brick-backed stone slab facing and rubble-backed brick masonry. In brick-backed ashlar masonry, alternate courses of ashlar are present. Brick-backed stone slab facing is composed of bricks which are laid in courses with proper bonds whereas rubble-backed brick masonry is usually used at locations where rubble stone is available in huge amounts, but ashlar is not available.