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In the process of external wall insulation construction, there are mainly three types of materials: one is adhesive material, represented by XPS board and rock wool. The two types are spray materials represented by polyurethane. The three types are slurries, which are representative of glass B. EADS and polystyrene particles. These three materials have one thing in common: structure based insulation.

This layer of insulation, no matter what, always has gaps between structures. This will lead to two fatal consequences: detachment and longevity, where detachment becomes normal after more than 10 years of insulation engineering. According to the design specifications, the service life of the building structure is 50 years. The warranty period for external wall insulation materials is 5 years. What should we do in 5 years? Although there is a maintenance fund, it cannot fundamentally solve the problem.

Therefore, the use of structural self insulation is the development trend of modern insulation technology. Introduced the self insulation technology of concrete structures. This article mainly introduces the self insulating bricks of the lower structure. One type is ordinary sintered insulation bricks, mainly made of solid waste such as clay, shale, coal slag, fly ash, sludge, etc., and baked into porous thin-walled insulation bricks for building enclosure structures. The other is composite sintered thermal insulation block: the holes of ordinary sintered thermal insulation block are filled with expanded perlite, polyurethane hard foam, molded polystyrene board, rock wool and other efficient thermal insulation materials to further improve its heat treatment performance.