Lightweight plastering gypsum is a high-performance building wall material, which is mainly suitable for interior wall decoration and leveling. This gypsum is mainly composed of components such as construction gypsum, light aggregates and additives, using light microbeads as aggregates and adding a variety of additives. Compared with traditional cement, lime and other plastering materials, lightweight plastering gypsum has the advantages of strong adhesion, not easy to fall off, convenient construction, easy drying and good environmental performance.
Lightweight plastering gypsum has the strength of cement, but it is healthier and more environmentally friendly, durable, high bond strength, no hollowing, no cracking. It can effectively reduce the load-bearing of the wall, increase the safety performance of the building, and at the same time has the characteristics of thermal insulation and sound insulation, which can adjust the indoor temperature and humidity and improve the living comfort. In addition, the coating rate of lightweight plastering gypsum is large, which can save material costs and construction time.
It has the following advantages:
1.Light weight: Lightweight plastering plaster has a low density, so it does not add excessive load when filling and covering the wall, reducing the pressure on the building structure.
2.Convenient construction: Lightweight plastering gypsum has good plasticity and adhesion, which can better fill and repair the uneven part of the wall, making the wall more flat and smooth. At the same time, it dries quickly, shortens the construction period, and reduces the cost of manpower and time.
3.Good fire performance: lightweight plaster gypsum does not burn, has good fire performance, can effectively delay the spread of fire, and provide important fire protection for buildings.
4.Strong waterproofing: Lightweight plastering gypsum forms a dense surface layer that effectively prevents moisture from penetrating and preventing dampness, leakage or mildew on walls or ceilings.
5.Thermal insulation: Lightweight plaster plaster has excellent thermal insulation and thermal insulation properties, which can regulate indoor temperature and humidity and improve living comfort.
6.Environmentally friendly and harmless: the raw materials of lightweight plastering gypsum are natural gypsum and other additives, which do not contain harmful substances, are odorless and non-toxic, and have no pollution to the environment. At the same time, its waste can be reused, reducing the waste of resources.
7.Reduced costs: Due to the light weight of lightweight plastering plaster, the cost of transportation and handling is reduced. At the same time, the construction speed is fast, which reduces the cost of manpower and time.
But there are also some drawbacks, which are mentioned below:
1.Not water-resistant: The waterproof performance of lightweight plastering gypsum is relatively weak, and if it is in a humid environment or water for a long time, it is easy to absorb water and swell, resulting in blistering, cracking and falling of the plastering layer. Therefore, it is necessary to pay special attention when using it in humid environments such as toilets and bathrooms.
2.Low strength: Compared with ordinary cement, lime and other plastering materials, the strength of lightweight plastering gypsum is lower. This may be limited in some construction or renovation projects that require load-bearing.
3.Need special treatment: Lightweight plastering gypsum has high requirements for the construction base and needs special treatment to achieve the ideal plastering effect. At the same time, it is necessary to pay attention to the humidity and temperature of the wall during construction to avoid affecting the plastering effect.
4.Relatively high: Compared with traditional cement, lime and other plastering materials, the light plastering gypsum is relatively high, but the overall cost is not high.
In the construction of lightweight plastering gypsum, it is necessary to first carry out base treatment, keep the wall flat, and apply the interface agent. For weaker walls, you can add mesh cloth to enhance the strength of the base layer. Ash cake and punching are the key steps of construction, which need to be operated in strict accordance with the requirements. Finally, the steps of scraping, repairing and cleaning are carried out to ensure that the wall is flat, clean and tidy.
In general, lightweight plastering gypsum is an ideal indoor wall plastering material, which has the advantages of environmental protection, durability and economy, which can improve the flatness and verticality of the wall, reduce the load-bearing of the wall, increase the safety performance of the building, and at the same time regulate the indoor temperature and humidity and improve the living comfort.