Prefabricated sandwich-type thermal-insulation wallboard, and preparing method thereof

Abstract

The invention discloses a prefabricated sandwich-type thermal-insulation wallboard. The prefabricated sandwich-type thermal-insulation wallboard comprises three layers including a decorative protective layer, a thermal-insulation layer, and a structure layer; the three layers are connected so as to form an integral whole via shear connectors; the structure layer is mainly used for bearing wallboard loading; the decorative protective layer is used for providing a wallboard decorative surface; and the thermal-insulation layer is used for ensuring thermal insulation performance of the prefabricated sandwich-type thermal-insulation wallboard. According to a preparation method, ceramsite concrete is used for pouring the decorative protective layer so as to reduce the self weight of the prefabricated sandwich-type thermal-insulation wallboard, and improve the thermal engineering performance of the prefabricated sandwich-type thermal-insulation wallboard; the thermal-insulation layer is prepared from EPS foam boards, and is capable of delaying transmission of heat energy among the inner and outer layers of the prefabricated sandwich-type thermal-insulation wallboard effectively as a thermal insulator in the prefabricated sandwich-type thermal-insulation wallboard; the structure layer is made from C30 concrete, and is mainly used for bearing wallboard loading. The decorative protective layer and the structure layer of conventional prefabricated external wallboard are both made from common concrete. The materials of the prefabricated sandwich-type thermal-insulation wallboard are widely available; processing and preparation are simple; performance is reliable; defects of conventional prefabricated external wallboards such as high self weight and poor thermal engineering performance are improved greatly; the prefabricated sandwich-type thermal-insulation wallboard can be taken as a prefabricated external wallboard; and application prospect is promising.

Description

technical field [0001] The invention relates to a prefabricated building energy-saving wall, which belongs to the technical field of construction engineering, in particular to a prefabricated sandwich-type sandwich insulation wallboard. Background technique [0002] With the gradual advancement of building a well-off society in an all-round way, the building area is increasing year by year, and building energy consumption accounts for more than 33% of the total energy consumption in the country. National and local "Twelfth Five-Year" construction plans take building energy conservation as the main energy-saving construction goal one. Prefabricated concrete structures, as a structural form in line with industrial production methods, have the advantages of fast construction speed, low labor intensity, less noise pollution and wet work, and easy control of product quality, and have been widely used in developed countries. The construction method of prefabricated assembly can e...

AI Technical Summary

Problems solved by technology

The vertical load borne by the external wall panels is mainly the self-weight of the external wall panels. This invention is dedicated to the design of the sandwich type external wall panels, and solves the disadvantages of the external wall panels, such as heavy weight and poor thermal performance

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