Specification: 600-300-200
Ash aerated concrete block
1. The main reason is that the material is different. The main material for sand aeration is sand, and the main material for ash aeration is fly ash. In principle, they all use silica as the main component. The difference is that the silica content of sand is relatively high. Generally, the price of sand aeration is about 25 yuan per square meter higher. Relatively speaking, the quality of sand aeration is better.
2、 Autoclaved aerated concrete blocks The production of can largely use industrial wastes such as fly ash, tailings sand and desulfurized gypsum, which is in line with the strategy of developing circular economy and belongs to the new wall materials encouraged by the national policy. However, due to the different local resource conditions used by enterprises, the selected raw materials and formulas are different. Generally speaking, those produced from fly ash are called "ash aerated blocks"; It is called“ Sand aerated block ”。 The production of "sand aerated block" requires quartz sand (or tailings) to be ground into powder by ball mill, so the power consumption is high, and the cement increase is large, so the price is slightly higher.
3. "Ash aerated block" and "sand aerated block" have basically no difference in application functions, such as light weight, sound insulation, heat insulation, fire prevention and other characteristics. In addition, the same national standard is adopted for product production, quality inspection, function inspection and construction requirements. From the perspective of application position. Both are used as infill walls of buildings, both internal and external walls, and are the best self insulation walls. Now it is customary to use "sand aerated block" for the exterior wall, which has a slightly stronger frost resistance than "ash aerated block".
4. In terms of construction methods. "Ash aerated block" mostly adopts "wet construction", that is, masonry with mixed mortar, and painting after interface treatment; Most of the "sand aerated blocks" are constructed by "dry construction", that is, they are built with special adhesives, and then they are scraped after special interface treatment. However, with the improvement of the product scale accuracy of "ash aerated block", there is a trend of "dry construction". "Autoclave Aerated concrete block ”It is divided into different grades according to the product strength and unit weight (weight per cubic meter). Commonly used: strength A3.5, unit weight B06. The higher the strength, the lighter the unit weight, and the higher the price.
