Selecting Good Quality Bricks
- A good brick should be hard and well burnt with uniform size, shape and colour (generally deep red or copper), homogenous in texture and free from flaws and cracks.
- Its edges should be square, straight and sharply defined.
- It should produce a metallic ringing sound when stuck with another brick.
- It should not break when struck against another brick or dropped from a height of about 1.2 to 1.5m on the ground.
- No imprints should be left on the surface when scratched by a fingernail.
- Bricks should not absorb water more than one-sixth of its weight after being immersed in water for an hour.
- Good quality bricks are difficult to get and exhibit high wastage/breakage. They are not environment friendly as they consume fertile top soil. Instead, it is advisable to use concrete blocks.