Some gypsum properties
Expansion of gypsum volume
After setting of plaster of Paris, its volume increases by about one percent. This property helps fill all the voids and small holes in a wall and have a smooth surface. After gypsum plaster hardens, its volume will not increase. That is why master builders can plaster large surfaces without any interstices. so that there are no cracks to serve as nests for insects and fungi. Therefore, plastered walls will be hygienic.
Low cost:
Gypsum is much cheaper than many other construction materials, which is why it has a wide variety of applications. The low cost of gypsum is due to its abundance and easy availability. This advantage of gypsum has made it possible to conduct research in the construction industry. and produce various products, and create greater added value, for this industry.
