brick Presentation.ppt
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WHAT IS BRICK ?
The bricks areobtained by molding
clay in rectangularblocks of uniformsize and then
drying and burningthese blocks.
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Advantages : Brickwork is cheaper than the stonework. Construction method of brickwork is simple.
Disadvantages : Stonework is stronger than brickwork. Brickwork is less water tight than stonework.
Constituents of Brick:1. Silica 55%
2. Alumina 30%3. Iron Oxide 8%4. Magnesia 5%5. Lime 1%
6. Organic Matters 1%
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BURNING :
For burning 1 lack bricks need 18 tons
coal,100 mon chalk,25 mon tires.
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QUALITIES OF GOOD BRICKS :
Bricks should be uniform in color, size and shape.
They should be sound & compact.
Should be neither overburnt or underburnt.
Should not change in volume when wetted. Compressive strength should be in the range 5,000 to
8,000 etc.
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First class Bricks.
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Second class Bricks
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Third class Bricks :
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Over burnt
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Washing bricks
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PICKED JHAMA BRICKS
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THANKS TO ALL..