1. Light weight
The porosity is 70% - 85%, and the bulk density is generally 500-900kg/m3, which is 1/5 of ordinary concrete, 1/4 of clay bricks, and 1/3 of hollow bricks. They are similar to wood and can float in water. It can reduce the dead weight of buildings and greatly reduce the cost of buildings.
2. Impermeability
As the material is composed of many independent small pores, water absorption and moisture transmission are slow, and the time required for water absorption to saturation in the same volume is 5 times that of clay bricks. When it is used in the toilet, tiles can be directly pasted on the wall after interface treatment.
3. Fire prevention
The main raw materials are mostly inorganic materials, so they have good fire resistance and do not emit harmful gases in case of fire. The fire resistance is 650 degrees, which is a class I refractory. The fire resistance of 90mm thick walls can reach 245 minutes, and that of 300mm thick walls can reach 520 minutes.
4. Durability
The strength of the material is stable. After one year of exposure to the atmosphere, the strength is increased by 25% and remains stable after ten years.
5. Sound insulation
Due to its unique porous structure, it has a certain sound absorption capacity. The wall thickness of 10mm can reach 41 decibels.
6. Convenience
It has good processability, can be sawed, planed, drilled, nailed, and can be bonded with appropriate bonding materials, creating favorable conditions for building construction.
7. Thermal insulation
Due to the large number of pores and micropores inside the material, it has good thermal insulation performance. The thermal conductivity is 0.11-0.16W/MK, which is 1/4-1/5 of clay brick. Generally, the thermal insulation effect of 20 cm thick aerated concrete wall is equivalent to that of 49 cm thick ordinary solid clay brick wall.
8. Seismic resistance
For the same building structure, the earthquake resistance level is 2 higher than that of clay bricks.
9. Environmental protection
The manufacturing, transportation and use processes are pollution-free, which can protect farmland, save energy and reduce consumption. It is a green building material.
10. Economy
The comprehensive cost is more than 5% lower than that of solid clay bricks, which can increase the use area and greatly improve the utilization rate of building area.
The comprehensive cost is more than 5% lower than that of solid clay bricks, which can increase the use area and greatly improve the utilization rate of building area.
As a new wall material with excellent performance, aerated concrete products are guided by national policies and regulations and have a gradually expanding market in this region. Especially after the use of solid clay bricks is prohibited, they will be favored by the market and become the mainstream of wall materials. The production process and equipment provided by our company are mature and advanced in the plate equipment industry in China, and the product quality and performance can meet the national standards. Whether it is the centralized automatic control of ingredients, the automatic control of the rest room, or the appearance size of the products cut by the cutting machine, they have reached a high level.
Product introduction of autoclaved AAC block machine: the selection and quantity of AAC block machine are determined according to the process design scheme. Common autoclaved aerated concrete equipment include concrete cutting machine, casting machine, autoclave, steam curing truck, crusher, ball mill, conveyor, mixer, formwork, lifting appliance, boiler, etc; Pouring can be divided into fixed type and mobile type. At present, the cutting mode is mainly turnover cutting in China, while other batching systems, autoclaved curing and other equipment are similar to each other.
AAC block machine can be used to produce a new type of building material aerated concrete, which mainly includes block and plate. Bearing wall blocks, non bearing wall blocks and thermal insulation blocks can be produced with different formulas and processes. The plate can be divided into roof insulation board, thermal insulation floor and thermal insulation wall board.
Ⅱ. Brief introduction to production process of autoclaved aerated concrete
Aerated concrete can be produced by steam curing with an annual output of 20000 m3~300000 m3 according to the type, quality of raw materials, technological characteristics of equipment, etc. Generally, fly ash, silica sand and slag are grinded into slurry by adding water, and powdered lime, appropriate amount of cement, gypsum, foaming agent and foam stabilizer are mixed and injected into the mold frame. After static foaming and solidification, they are cut into blocks or plates of various specifications, which are sent into autoclaves by steam curing trucks. Porous lightweight concrete products are formed by curing with high-temperature and high-pressure steam.
Ⅲ. Process flow of AAC block machine:
AAC block machine can be produced by different processes according to the type, quality of raw materials, process characteristics of main equipment, etc. However, in general, fly ash or silica sand is grinded into slurry by adding water, powdered lime, appropriate amount of cement, gypsum and foaming agent are added, and then injected into the mold frame after mixing. After static oxygen foaming and solidification, blocks or plates of various specifications are cut, and then sent into autoclaves by steam curing trucks. Porous lightweight aerated concrete products are formed under the curing of high temperature saturated steam.
Ⅳ. Advantages of AAC block machine:
As aerated concrete has the advantages of light volume weight, high thermal insulation performance, good sound absorption effect, certain strength and processability, and rich raw materials for production, especially the use of fly ash as raw materials, it can not only comprehensively utilize industrial waste residue, control environmental pollution, do not damage farmland, but also create good social and economic benefits. It is a wall material that replaces the traditional solid clay bricks, and has been subject to the national wall reform policy for many years With the strong support of tax policy and environmental protection policy, aerated concrete products have become an important part of new building materials and have broad market prospects.
In recent years, people have gradually realized the benefits of investing in AAC block machine project. Zhejiang Ruigang Machinery Co., Ltd. reminds users to make a detailed investigation before investing in the project, such as investigating what wall materials are needed for market development in the local area, and also knowing the background of the local wall reform policy, and how much is the production cost of aerated concrete block products? What is the market price? What are the competitors in the investment area? Only after thorough understanding of these can we be more sure to make profits in such projects.
