By heating of gypsum found in nature (CaSO4+2H2O) to 150 to 160°C , 1,5 mol water evaporates of 2 moles in the chemical structure and it is changed as CaSO4+1/2H2O called calcination process. Gypsum loses mass of around 15% during calcination, i.e. if 1000 kg of gypsum plaster is calcined, approximately 850 kg plaster remains, and 150 kg of water vapor is emitted from the chimney. Gypsum found steady work in nature, becomes an unstable structure after calcination. When mixed with water again it becomes stable structure in nature.
CaSO4 + 2H2O à CaSO4 + ½H2O + 3/2H2O Dehidrasyon (Kalsinasyon)
CaSO4 + 2H2O + 3/2H2O à CaSO4 + 2H2O Rehidrasyon
The plaster is breathable construction material is able to get moisture in the atmosphere and give the moisture in the body when the environment is dry. It absorbs the heat during the fire and left the water in the body so it is fire resistant. In the heat and sound insulation compared to other building materials Gypsum is irreplaceable.
GYP MAC is plaster powder plant and in other word gypsum plaster powder plant manufacturer
PLASTER PLANT CAPACITIES
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