DIFFERENT TYPES OF DEFECTS FOUND ON BRICKS.
1. BLOATING
This defect observed as spongy swollen mass over the surface of burned bricks. This is caused due to the presence of excess carbonaceous matter and sulphur in brick-clay.
2. CHUFFS
The deformation of the shape of bricks caused by the rain water falling on hot bricks is known as chuffs.
3. SPOTS
Iron sulphide, if present in the brick clay, results in dark surface spots on the brick surfaces. Such bricks though not harmful are unsuitable for exposed masonry work.
4. BLISTERS
Broken blisters are generally caused on the surface of sewer pipes and drain tiles due to air imprisoned during their moulding.
5. LAMINATIONS
These are caused by the entrapped air in the voids of clay. Laminations produce thin lamina on the brick faces which weather out on exposure
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1. BLOATING
This defect observed as spongy swollen mass over the surface of burned bricks. This is caused due to the presence of excess carbonaceous matter and sulphur in brick-clay.
2. CHUFFS
The deformation of the shape of bricks caused by the rain water falling on hot bricks is known as chuffs.
3. SPOTS
Iron sulphide, if present in the brick clay, results in dark surface spots on the brick surfaces. Such bricks though not harmful are unsuitable for exposed masonry work.
4. BLISTERS
Broken blisters are generally caused on the surface of sewer pipes and drain tiles due to air imprisoned during their moulding.
5. LAMINATIONS
These are caused by the entrapped air in the voids of clay. Laminations produce thin lamina on the brick faces which weather out on exposure
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