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Plaster of Paris

Plaster of Paris Plaster of Paris is calcined gypsum. Mixed with ordinary lime it is used for repairing holes and cracks in wooden or plastered surfaces, and for making moulds and ornamental works. When mixed with water its swells slightly and sets rapidly. Gypsum is natural calc...

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Kankar

Kankar Kankar is extensively used for producing hydraulic lime. The nodules should have a blue grey fracture, free of any sand grains or mud sticking to them, and broken to pass a 12 mm gauge before being calcined. Kankar is a nodular variety of limestone which is of spongy natur...

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Terracotta

Terracotta is a kind of earthenware which is generally used as a substitute for stone in the ornamental parts of buildings. It is made like clay products burnt at very high temperature; usually contains : 8 parts sifted dry clay, 3 parts crushed pottery, 2 parts white sand, I par...

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