 DIY Tips : What is plasterboard | |
What is plasterboard.
A plasterboard panel is made of a paper liner wrapped around an inner core made primarily from gypsum plaster, the semi-hydrous form of calcium sulphate (CaSO4.½ H2O). The raw gypsum (mined or FGD) must be calcined before use. The plaster is mixed with fiber (typically paper and/or fiberglass), foaming agent, various additives that increase mildew and fire resistance, and water and is then formed by sandwiching a core of wet gypsum between two sheets of heavy paper or fiberglass mats. When the core sets and is dried in a large drying chamber, the sandwich becomes rigid and strong enough for use as a building material.
Plasterboard is a common manufactured building material used globally for the finish construction of interior walls and ceilings.
Plasterboard is cut to size, using a large T-square, by scoring the paper on the front side (usually white) with a utility knife, breaking the sheet along the cut, scoring the paper backing, and finally breaking the sheet in the opposite direction. Plasterboard is then fixed to the wall structure with screws, or more commonly the dot dab method using plaster bonding cement.
You can tile directly onto a plasterboarded wall with little to no other preperation, though many tilers will give the plasterboard a coat or two of acrylic primer first.
The recommended weight that plasterboard can support is 32kg per square meter.
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