Q1. Which of the following statements are wholly correct regarding broken-brick aggregate useable in concretes?
- (1) Broken-brick aggregate is obtained by crushing waste bricks; and it has a density varying between 1000\,kg/m3 – 1200\,kg/m3.
- (2) Such aggregate is usable in concrete for foundation in light buildings, floorings and walkways.
- (3) Such aggregate may also be used in light-weight reinforced concrete floors.
- (a) 1 and 2 only
- (b) 2 and 3 only
- (c) 1 and 3 only
- (d) 1, 2 and 3