Gypsum is a construction material widely used in civil construction because it has several advantages in relation to the traditional use of brick and cement for walls and ceilings.
Types of plaster
Moisture resistant plate
The moisture-resistant plates are composed of plaster with additives such as silicone or cellulose fibers that make it more resistant to water and a cardboard with two-sided waterproofing (water repellent). The cardboard of these plates have a green color.
Standard plates are lined with kraft paper. On the front side it is white and the back side is ivory. The plates with thickness 12.5mm are normally more used. As additives normally used are potassium sulfate, sodium sulfate or sodium chlorate.
Fire resistant plate
The additives of the fire-resistant plates (chemical products and fiberglass mixed with the plaster), serve to delay the release of water from the plate that prevent the collapse of the piece. These plates have pink cardboard color.
Advantages and disadvantages
Not as solid as traditional brick and mortar
Perfect final finish
Point loads greater than 35 kg require a reinforcement installation.
Quick repair of damaged walls
Sensitivity to humidity.
Allows the construction of systems with high technical characteristics of thermal insulation
Allows the construction of systems with high technical characteristics of acoustic insulation
It allows the construction of high performance passive fire protection systems.