Gypsum powder is one of the most widely used building materials in the construction industry.
To use these materials, after extracting them from the mines, they pour them into the oven and heat them up to 180 degrees Celsius.
After some of the molecules lose their crystallinity, they become plaster powder to be used in various industries.
The smaller the particle size of gypsum powder, the higher its quality.
Gypsum powder has been used since ancient times and is one of the most important adhesive building materials used in interior linings, decorative plastering, molding, whitewashing, etc.
Application of gypsum powder
The use of gypsum powder includes various things, including in cement to increase its time, in porcelain and ceramic making to make porcelain and ceramic molds, in glass making to adjust melt viscosity, in casting, agriculture, medicine, petrochemical, leather making, etc.
But the most common application of gypsum powder is in construction, where it is used in various parts such as coating, whitewashing, cleaning, polishing, plastering, gypsum mortars, bricks, plaster and sand, sound and thermal insulation, prefabricated floor and skirting boards, sculpting.
Advantages of gypsum powder:
Fire resistance
Hardened gypsum powder, like gypsum stone, has two crystallized water molecules, if the gypsum powder is exposed to the heat caused by fire, this crystallization is separated from the gypsum powder again due to the heat and is placed in the form of a layer of water in front of the fire. In this arrangement, gypsum powder can resist the spread of fire to other spaces for 2-3 hours.
Abundance and availability
Gypsum powder is available most of the time and is the fifth most abundant in nature.
Acoustic feature
Gypsum powder absorbs 60-70% of sound vibrations and prevents its reflection.
Hardening of gypsum powder
Gypsum powder has 0.5 molecules of crystallized water, which absorbs another 1.5 molecules of water in the vicinity of water and hardens with 2 molecules of crystallized water and then turns into gypsum.
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