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Liaocheng sand aerated block has all the advantages of Liaocheng sand aerated block, among which the frost resistance and water resistance are particularly good. Liaocheng sand aerated block absorbs water slowly, and it usually takes an hour to reach saturation. Its water absorption rate is generally slightly lower than that of clay bricks. If soaked in water for a long time, its strength will continue to increase. Its frost resistance and water resistance They are all in good condition. After several freeze-thaw cycles, the appearance is basically complete, the compressive strength is up to 10%, and the dry mass loss is less than 1%. Because the Liaocheng sand aerated block is made of tailings sand, there are many independent closed pores inside. The frost resistance of Liaocheng sand aerated blocks is also particularly good.
Comparison between Liaocheng sand aerated block and fly ash Liaocheng sand aerated block. In the production process, the production process of Liaocheng sand aerated block is more complicated than that of gray Liaocheng sand aerated block, so the cost is relatively high. There is no special function in their use. They are all used for building and filling. In terms of product production quality acceptance, performance testing and construction requirements, the same national standards are adopted. From the perspective of use parts, both are used as building filling walls, both can be used for internal and external walls, and they are the best self-insulating walls. Nowadays, it is customary to use sand and aerated blocks for exterior walls, which have slightly stronger frost resistance than gray and aerated blocks.
From the perspective of construction methods. Sand-entrained aerated blocks are mostly constructed using dry methods, that is, special adhesives are used for masonry construction, special interface treatment is used, and then surface scrapers are used for scraping. Most of the gray aerated blocks are constructed by wet method. Even if they are built with mixed mortar, they cannot be painted after interface treatment. With the improvement of the dimensional accuracy of gray Liaocheng sand aerated block products, there is now a trend of using dry construction. .