The use of plasterboard inside the building acts as a vapour barrier & avoids the indoor humidity. Gypsum construction such as plasterboard or formwork construction has additional insulation properties. The thermal properties are capable of creating very good stability of indoor humidity and temperature.
Plaster vs drywall insulation properties install#
Instead of a 110 mm thickness masonry wall, we are able to install 75 mm thickness drywall to achieve the same sound efficiency. The air space between the two solid wall results in excessive acoustic efficiency which prevents noise from being passed. Other methods such as masonry work commonly used in higher thicknesses plasterboard is specifically designed to prevent noise reduction and redistribution.
Gypsum products are developed to deal with sound insulation properties. It is considered an excellent fire retardant due to its non-combustible property and may delay fire spread for hours. The casing results on combustion-tolerant materials and allows low safe temperatures to be maintained.Įven after the water crystals have cooled completely, the residue behaves like an insulating layer until it separates. The heating of gypsum products causes water crystals to form within the material this dehydration by heat is known as calcination. This will help prevent the spread of fire and excess material. When the fire approaches the water, it undergoes evaporation, overlapping a protective layer. The plasterboard of 15 mm thickness contains approximately three litres of crystal water. The resistance against fire is due to the presence of water within the gypsum products. Gypsum is fire resistant in nature which prevent the possibility of fire outbreaks that ensure life safety. It is especially used in constructing materials such as drywall, however it is also useful in agriculture as soil fertilizer and conditioner. This powder is a natural product made up of calcium, sulfur, oxygen and hydrogen. It includes boards, glass matte panels, abuse-resistant, impact-resistant panels and shaft liner panels. It is one of many panel products, the common name for a family of sheet products essentially consisting of gypsum. It is a reasonably soluble source of essential plant vitamins, calcium, and sulfur, it might improve general plant growth. It is one of the earliest forms of fertilizer used in the United States and it has been applied to agricultural soils for over 250 years. When applied in a plastic state, it set and hardened by chemical recombination with water. It is the white cementing materials formed by partial or fully dehydration of the mineral mixed with particular diluent or hardener. It contains 79.1% calcium sulfate and 20.9% water. It is a crystalline substance that is very little soluble in water and soluble in dilute hydrochloric acid, but it is insoluble in sulfuric acid. Gypsum is extensively used as a construction material it contains 70% of CaSO4, 2H20 can be used for building construction.Ĭhemically, gypsum is a sulfate of calcium with two molecules of water i.e. The word gypsum is derived from a Greek word meaning ‘to cook’ known as a burnt or calcined mineral. Here we will learn about gypsum, types of gypsum & much more. It is a raw material for the manufacture of ammonium sulfate and sulfuric acid. It is widely mined and is used as a fertilizer and main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall. Gypsum is a soft sulfate naturally occurring, white powdered mineral composed of calcium sulfate di-hydrate with the chemical formula CaSO.
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