Composite wallboard is a new generation of high-performance building interior partition produced in industrialized production. It is made of various building materials and replaces traditional bricks and tiles. , The obvious advantage of fast construction.
1. Features of composite wallboard
Composite wallboard product features are: high strength, light weight, environmental protection, thermal insulation, heat insulation, sound insulation, fire prevention, moisture-proof and quick installation and other comprehensive advantages, it is an ideal energy-saving wall material for modern buildings
2. Preparation method
The composite wallboard uses ordinary Portland cement, sand, fly ash or other industrial wastes such as water slag, slag, etc. The special mixing system for light aggregates introduces air during the mixing process to form honeycomb-shaped stable pores in the core layer to further reduce the product’s bulk density, which not only reduces material costs, but also achieves ideal heat preservation and sound insulation effects. Polyphenylene particles and pores are evenly distributed inside the product, making the concrete form a circular honeycomb skeleton, thereby supporting each other and increasing the compressive capacity. The addition of fly ash not only improves the workability of the concrete slurry, but also enhances the strength of the cement in the later stage, thereby enhancing the strength of the product after curing, the flexural strength increases by 80%, and the modulus of rupture increases by more than 50%.
3. Application scope
It is suitable for projects with high requirements for room sound insulation, such as hotels, ktv, schools, hospitals, etc.
It is suitable for projects with limited construction requirements, such as shopping mall partition walls and secondary renovation partition walls.
Applicable to projects that require lightening of wall loads: super high walls, light steel houses, steel structures, prefabricated houses.
It is suitable for projects with special requirements on fire protection, such as pipe wells, firewalls, and large kitchens. =
Applicable to projects that require construction progress.
Applicable to projects with special requirements for moisture-proof and waterproof: bathroom, toilet, kitchen, outdoor and other projects.
Applicable to projects that require nail-hanging paste and attachment: tooling, home decoration, interior and exterior walls and other conventional partition walls.
4. Development history and prospects
China has a tradition of digging and burning bricks since ancient times. With the spirit of national energy conservation and emission reduction, in order to achieve the “Eleventh Five-Year” goal of the development of new wall materials, adjust the industry structure, save land resources and energy, and protect the environment. The strategic goal of sustainable development marks that my country’s wall material reform has entered a new stage. Therefore, new wall materials arise at the historic moment. In the early stage of development after the reform, various partition wall materials emerged, such as: aerated bricks, hollow panels, gypsum boards, magnesite boards, cement bricks and other representative materials. Although each type of product has its own characteristics, it has its own space in the market. However, the market demand needs a new partition wall material that can combine the performance characteristics of the above various materials. In this environment, lightweight composite functional wall panels were born.
According to statistics, the use of lightweight wallboard materials can save about 30% of the total cost, and the construction efficiency of the board wall can be at least 3 times higher than that of blocks and bricks. The proportion of wall panels in the world’s advanced countries and regions is: 72% in Japan, 69% in European and American countries, 60% in Hong Kong, and 46% in the Middle East and Southeast Asian countries. In China, the usage of new wall panels only accounts for about 10%. The huge demand for building materials in China and the widespread use of new panels in Europe and America indicate that the development potential of new wall materials in China is huge.
In the years of development of lightweight wall panels, manufacturers have different understandings of future market development trends. There are many types of lightweight wall panels in the market, and the intensity of product research and development has gradually widened the gap in the quality of various types of products of various manufacturers. Mature mainstream technology, fire prevention, saving time and labor, impermeability, sound insulation, practical adaptability and other high-quality lightweight walls, lightweight composite wall panels (industry code FPB) as the industry’s preferred products. FPB has continuously updated its formula through years of research and experimentation with many well-known domestic universities, and at the same time, it has learned from the combination of other domestic and foreign technologies, making the product quality mature in terms of impermeability, light weight, and fire prevention. Such performance also takes into account the superior performance of sound insulation and impact resistance. With the development over the years, the supporting industries and facilities for composite wall panels have gradually become more perfect, and the composite wall panels have gradually expanded from the original high-end market to the mid-end market, and there is a broader space for development and in-depth development and application.
5. Analysis of common quality problems
During the development of composite wall panels in the past few years, all manufacturers regard the formula and process of composite panels as the core competitiveness of enterprises, so they are highly confidential, and there is a lack of experience exchange between industries, resulting in some inexperienced new manufacturers’ products being used in engineering applications due to unqualified quality. The occurrence of quality problems will affect the reputation and development of the entire new partition wall material. Including surface layer peeling, U-shaped groove cracks, uneven surface density, flash burrs, board surface is easy to fold, flatness error, long production molding cycle, low output, high production cost and a series of production and installation problems.
6. Earthquake impact
The three-in-one structure of the composite wallboard has light weight and high strength. It adopts prefabricated construction, and the wallboard is interlocked with the wallboard to form a whole. The impact resistance is better than that of ordinary masonry. Riveted between structural columns and beams, the overall performance is stable, can reduce the net load of the building, and fixed on the structure, improve the safety factor of the building structure, can effectively prevent earthquakes, and there is no danger of collapse. The only houses that survived major natural disasters such as the Charlotte hurricane and the Wenchuan earthquake were built with composite siding.
Post time: Nov-16-2022