Combined anti-cracking and anti-falling external wall insulation board and forming process thereof

Abstract

The invention discloses a combined anti-cracking and anti-falling external wall insulation board and a forming process thereof, and belongs to the technical field of concrete pouring. The space between foaming concrete board and expanded polystyrene board is filled with a foaming insulation board with glass fiber bonding net layer, then the foaming concrete board and the expanded polystyrene boardare extruded oppositely, mechanical fixation between board layers is completed, and insulation effect is achieved; the outer wall of the expanded polystyrene board is provided with an outer decorative board with a convex heat preservation bulge, the outer wall of the convex heat preservation bulge is provided with a foamed fiber surface layer, and the convex heat preservation bulge is filled withthe fiber reinforced foamed plastic filling layer, so that the convex heat preservation bulge and the foamed fiber surface layer are fixedly bonded; under a low-temperature environment, due to the fact that the unique porous foam structure of the fiber reinforced foamed plastic filling layer and the foamed fiber surface layer can sense temperature and shrink, a protective wall is formed by matching with erection of the short fiber thorns so as to achieve the heat preservation effect of the outer wall; and under a non-low-temperature environment, the porous foam material memorizes and restoresto the original state, and cracking of the wall body due to heat expansion and cold contraction is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of concrete pouring, and more specifically relates to a combined anti-cracking and falling-off external wall insulation board and its forming process. Background technique [0002] At present, my country is vigorously promoting building energy conservation, and promoting the development of low energy consumption, ultra-low energy consumption and green buildings is an important task at present. The current building exterior wall insulation materials are mainly organic material insulation systems, such as EPS insulation boards, XPS insulation boards, phenolic resin insulation boards, polyurethane insulation materials and so on. [0003] At present, it can meet the requirements of repaying gratitude, and the most commonly used is foamed cement board. The construction process is: the cement board with a side length of about 30cm and a thickness of 3-5cm is fixed on the wall with adhesive mortar, and then the ant...

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Problems solved by technology

[0003] At present, it can meet the requirements of repaying gratitude, and the most commonly used is foamed cement board. The construction process is: the cement board with a side length of about 30cm and a thickness of 3-5cm is fixed on the wall with adhesive mortar, and then the anti-cracking mortar is applied on the surface of the cement board. , and finally make the decorative layer. It cannot be ignored that there are too many joints between the foamed cement boards, and there are cold and hot bridges, which affect the thermal insulation effect, and the shrinkage of the cement material itself and the thermal expansion and contraction caused by the external environment will inevitably cause cracks on the outer wall. At the same time, the force formed by the anti-crack layer and the decorative layer of the external wall and the force generated by the natural environment directly act on the foamed cement board. Due to its low strength, it is easy to cause problems such as falling off, which is dangerous.

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