Application of Gypsum Self-leveling Mortar


Release time:

2021-07-05

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Gypsum self-leveling mortar

Application of Gypsum Self-leveling Mortar

Using α-hemihydrate gypsum made from desulfurization gypsum as the main raw material to produce gypsum-based self-leveling mortar, the results show that this newly developed self-leveling mortar not only has good fluidity, fast drying, high early strength, not easy to crack, simple construction and other characteristics, but also can use a large number of desulfurization gypsum, the industrial waste residue of power plant, which is conducive to environmental protection. This kind of gypsum-based self-leveling mortar can be widely used in indoor ground leveling treatment, especially suitable for floor heating system, one-time leveling thickness can reach about 60mm, can be expected, this kind of gypsum-based self-leveling mortar in the country will have a very broad application prospects.

Gypsum-based self-leveling mortar is a dry powder mortar specially used for ground leveling, which is carefully configured and evenly mixed by gypsum materials, special aggregates and various construction chemical additives in the factory. Under normal circumstances, this kind of mortar can be directly mixed with water (mechanically/manually) on the construction site to form a self-flowing liquid, which can be automatically leveled and can be used for leveling the floor of indoor buildings, such as filling the unevenness of the floor, micro voids and cracks, etc. Can be widely used in indoor carpet, PVC flooring, wood flooring and other ground leveling treatment, especially suitable for floor heating system (plumbing/electric heating).

Shrinkage
The performance index of the two kinds of mortar is very similar. In order to ensure the corresponding fluidity, compared with ordinary mortar, the water demand of self leveling mortar is usually much higher. In the self-leveling mortar, these excess water will evaporate into the air, if this process occurs too fast, it will cause very obvious shrinkage of the mortar, resulting in cracks in the mortar. But in the gypsum-based self-leveling mortar will not appear this kind of situation.


Key words:

Gypsum self-leveling mortar, gypsum self-leveling, self-leveling