Gypsum is a naturally occurring, white powdered mineral chemically named calcium sulfate dihydrate (CaSO4.2H20), a mineral that is mined in various parts of the world. It is a raw material for the manufacture of ammonium sulfate and …

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Plaster is a pasty composition that hardens when used for drying and coating walls, ceilings, and partitions, to protect penetration of rainwater and other environmental agencies. It improves the appearance of the structure and provides a decorative …

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