What is lightweight gypsum mortar?

In fact, it's an environmentally friendly, durable, and economical new interior wall plastering material that completely replaces traditional cement mortar. Gypsum is one of the three main building materials. Gypsum mortar and gypsum building materials are green prefabricated building materials strongly advocated by the government and are key nationally promoted building materials. It not only possesses the strength of cement but is also healthier, more environmentally friendly, more economical, and more durable than cement. It also boasts strong adhesion, resists pulverization, cracking, hollowing, and shedding, and is easy to use and cost-effective.

Lightweight gypsum mortar is a green plastering material specifically designed for interior walls and ceilings. It is a high-performance interior wall base leveling material. Made from high-quality gypsum, lightweight aggregate, and environmentally friendly additives, it is scientifically formulated and fully automatically mixed, resulting in a refined, energy-saving wall material. However, traditional cement mortar has inherent shortcomings that are difficult to overcome. The cement industry is energy-intensive, highly polluting, and emits large amounts of waste, making it a key national goal to eliminate outdated production capacity. Replacing it with related products is imperative. Cement-based materials are inherently hydraulically hardening, brittle, and shrinking, resulting in poor water retention.

This results in weak bond strength between the plaster layer and the wall, leading to numerous quality issues such as hollow cracking, flaking, and even peeling. These issues are even more likely to occur when construction is not standardized, resulting in a high rate of on-site repairs, seriously impacting the building's appearance and functionality. Gypsum plaster, with its excellent physical and mechanical properties and ease of use, has gained widespread market recognition and adoption, making it the preferred choice of developers, contractors, and construction companies. It is widely used in interior wall plastering projects of buildings around the world, among China's top 100 real estate companies, and among China's top 100 construction companies.

According to data from the National Bureau of Statistics and the "2019 China Construction Industry Analysis Report," the national construction industry's housing construction area reached 14 billion square meters in 2018, with 4.1 billion square meters of completed housing in 2018. The total annual building wall area completed reached 11 billion square meters. If lightweight plastering gypsum is used as an interior plastering material, the demand would be approximately 150 million tons, with an annual market turnover of nearly one trillion yuan for wall materials. This market has broad prospects. As a new type of interior wall plastering material, lightweight plastering gypsum is poised to completely replace traditional cement mortar, as evidenced by its dominant position in interior wall leveling in developed countries. In the United States, Germany, France, Spain, and Turkey, lightweight plastering gypsum accounts for 90% of the market share, while cement mortar accounts for less than 10%. In the United Kingdom, lightweight interior wall plastering gypsum accounts for 96% of the market share. New gypsum building materials solve the problem of comprehensive utilization of industrial solid waste; secondly, they promote the high-quality development of the gypsum building materials industry; and thirdly, they provide an iterative upgrade and beneficial supplement to traditional building materials in my country, particularly interior wall plastering materials. In recent years, with the country's increasingly stringent environmental regulations and the promotion of green building materials, the development of my country's construction and building materials industries has made gypsum-based composite wall materials, particularly those with energy-saving and environmentally friendly features, a pillar of the nation's wall materials market. Lightweight gypsum plastering completely replaces cement mortar plastering, aligning with national building materials production trends and actively responding to the national call for the development of green building materials!

Scope of Application: Suitable for plastering, leveling, and repairing interior walls and ceilings of brick, concrete, block, cement, cast-in-place concrete, and prefabricated interior partition panels, excluding bathroom and kitchen walls. Both machine spraying and manual application are possible.

Product Advantages

1. Lightweight: 1 ton = 1.7 cubic meters = 170 square meters of wall surface (1 cm thickness). Each ton of this lightweight material produces a volume of 1.7 cubic meters, meaning one ton can scrape or spray a 170 square meter area, 2.5 times the area of standard plaster on the market.

2. 4x Improved Work Efficiency: This product boasts excellent fluidity and smoothness, enabling applicators to achieve four times the daily productivity of standard plaster, while also reducing construction time by four times.

3. Reduced Labor Quota: To produce 100 square meters of high-quality wall surface, the labor quota for the gypsum mixture is 83.4 hours, and for the cement-lime mixture is 167.2 hours. Compared to cement mortar, this eliminates numerous operational steps and saves approximately half the labor. 4. Energy Consumption: Producing one ton of gypsum powder reduces energy consumption by approximately 45% compared to producing one ton of cement, and reduces investment by over 50%.

5. Increased Floor Area: Using lightweight plaster walls can increase a building's effective usable area. Generally, wall thickness can be reduced by half, increasing the effective usable area by approximately 5%.

6. 1 for 4: 1 ton of Shoujian New Materials lightweight gypsum mortar = 4 tons of premixed cement mortar. Interior wall plastering and plastering are efficient, stable, and convenient. Experiments have shown that the application area of one ton of Shoujian New Materials lightweight plaster is equal to the application area of three tons of ordinary gypsum mortar = the application area of 4.5 tons of cement mortar. This significantly reduces the cost of use, to as low as 4 yuan per square meter based on the application cost. 7. Reduced Building Load: A building with a plastering area of 10,000 square meters can reduce the effective load by 250 tons.

8. Gypsum Slurry Bulk Density: Gypsum mortar has a bulk density of 1 kg/L-1.3 kg/L, while cement-lime slurry has a bulk density of 1.7 kg/L-1.8 kg/L. For a plastering thickness of 13 mm-14 mm, 1 ton of gypsum slurry can cover 75-80 square meters, while cement-lime slurry can only cover 45-48 square meters.

9. Reduced Material Consumption: Lightweight plastering gypsum for internal leveling requires 8-15 kg/m2, while cement mortar-based plastering requires over 40 kg/m2 for indoor leveling, a reduction of approximately 25 kg/m2.

10. Low Overall Cost: While the retail price of plastering gypsum may appear expensive, in actual construction, the overall cost is no more expensive than traditional plastering materials. For example, the thickness of a plaster layer can be less than 3mm, while a cement mortar layer requires a thickness of at least 20mm.

11. Auxiliary Insulation: When used in conjunction with external insulation, this can reduce the thickness of external insulation by 5-10mm, thereby reducing energy consumption for heating and cooling throughout the building. Shoujian New Materials' lightweight plaster has 28 times the thermal insulation performance of ordinary gypsum, allowing for a reduction in the thickness of exterior wall insulation.

12. Less Surface Paint: Shoujian New Materials' lightweight gypsum mortar provides a dense, smooth plaster layer with low alkalinity, providing an excellent base for surface finishing. This reduces the use of surface finishing materials and paint by 30%.

13. Less Waste: Plastering reduces dust during construction, reducing material waste and cleanup efforts.

14. Suitable for Winter Construction: Plastering is more suitable for winter construction than cement mortar, significantly saving on insulation costs during winter construction. 15. Enhances Green Building Ratings: The production process of lightweight plastering gypsum produces virtually no three wastes. Gypsum mortar is more sensitive to air humidity and temperature and has excellent humidity and temperature regulation capabilities. Its low dry density provides excellent thermal and sound insulation. It releases a large amount of crystallized water at high temperatures, offering excellent fire resistance. Gypsum mortar is less alkaline than cement mortar, which helps protect human health. It not only produces no harmful substances but also resists insect infestation.

16. Addresses the construction industry's most persistent quality issue: no hollowing, no cracking, and no after-sales concerns.

17. Saves Steel and Cement: Compared to brick-concrete structures, using lightweight plastering gypsum for wall construction can save approximately 150 tons of cement and 400 tons of steel per 10,000 m² of construction.