Building gypsum, also known as plaster of Paris or calcium sulfate hemihydrate (CaSO₄·½H₂O), is a versatile material widely used in construction and decoration due to its quick setting, fire resistance, and smooth finish. Here are its primary applications:
1. Interior Wall & Ceiling Finishes
– Gypsum Plaster: Applied as a smooth, crack-resistant coating over brick, concrete, or block walls.
– Gypsum Boards (Drywall/Plasterboard): Prefabricated panels used for walls, ceilings, and partitions (e.g., SUSPENDED CEILINGS).
– Skim Coat: Thin layer for refining surfaces before painting.
2. Decorative Elements
– Moldings & Cornices: Lightweight decorative trims (e.g., crown moldings).
– 3D Panels & False Ceilings: Aesthetic designs with fire-resistant properties.
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3. Fireproofing
– Gypsum is inherently fire-resistant (contains ~21% chemically bound water). Used in:
– Fire-rated drywall (T.jpg)
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– Protective coatings for steel structures.
4. Sound Insulation
– Gypsum boards with added layers reduce noise transmission in partitions and ceilings.
5. Rapid Construction
– Fast-setting properties make it ideal for quick repairs and prefabricated components.
6. Floor Screeding
– Self-leveling gypsum underlays for smooth flooring substrates.
7. Medical & Art Uses
– While not a building use, gypsum is also employed in casts (orthopedics) and sculptures.
Advantages of Gypsum in Construction
✔ Lightweight
✔ Low shrinkage
✔ Good workability
✔ Eco-friendly (recyclable)
✔ Thermal & acoustic insulation
Would you like details on specific types (e.g., alpha vs. beta gypsum) or installation methods?