SAASTHAA BRICKS QUALITY

How to Know about Brick quality?

Density, Weight, absorption, pore structure, thermal characteristic, moisture movement to be quality bricks.Brick quality are classified as follows.

1. First Class Bricks?

• plain surface,sharp edges,sizes with tolerance in Dimensions.
• Uniform Red or Brownish coloured.
• High compressive strength, not less than 10.7N/mm2.
• Machine Moulded.
• Efflorescence-Nil.
• Water absorbtion less than 15%.

Uses

They are used for the exterior wall bricks works, sort colours and arches.
According to Indian standard Bricks classification.
ISO 1007: 1992.

2. Second class Bricks

• Slightly uneven faces and edges with tolerance in Dimensions.
• Uniform coloured but may be slightly over burnt.
• High crushing strength not less than 7N/mm2.
• Hand moulded.
• Efflorescence-little.
• Water absorbtion less than 20%

Uses

They are used for internal walls and compound walls.

3. Third Class Bricks:

• May be distorted with blunt edges.
• Over burnt or under burnt and non uniform colour.
• High crushing strength not less than 3.5N/mm2.
• Hand moulded.
• Efflorescence-Large.
• Water absorbtion less than 25%.

Uses

They are used for flouring, paving, small Brick foundation and brick hat lime concrete(B.B.L.C).