Light decoration and heat preservation integrated external wall panel

Abstract

The invention discloses a light decoration and heat preservation integrated external wall panel, and relates to the field of building wall panels. The light decoration and heat preservation integrated external wall panel comprises a foamed concrete heat preservation layer and an external wall decoration surface layer which are formed through pouring, wherein a steel wire mesh attached along a forming surface is arranged between an open groove and a protruding structure; the foamed concrete heat preservation layer is prepared from cement, ceramsite, a mineral admixture, water, fiber filaments, a foaming agent, a modifying agent and a stabilizing agent; the external wall decoration surface layer adopts colored mortar; and an in-wall steel bar net rack, reinforcing ribs, metal embedded parts and bearing metal hanging parts are arranged in the foamed concrete heat preservation layer. According to the light decoration and heat preservation integrated external wall panel, a concrete pouring process is adopted, and the structure is simple; and the self weight is small, the load on the structure is small, the specification of the cross section of the structure and the specification of the embedded parts can be reduced, a part of cost can also be reduced, the influence of the heat transfer coefficient is small, the sound insulation property, the heat insulation property and the fire resistance are good, and energy conservation and environmental protection are facilitated.

Description

technical field [0001] The invention belongs to the field of building wallboards, in particular to a light-weight decorative and heat-preserving integrated exterior wallboard. Background technique [0002] The main construction method of the decorative and thermal insulation integrated board is bonding and simple anchoring, and its durability and fire performance do not meet the requirements for the use of the latest external thermal insulation products for building exterior walls. [0003] Structural decorative insulation board: its main structure is composed of a 60-100mm ordinary concrete structure layer + a 100-150mm foamed concrete insulation layer. Increase the cost, and at the same time, it has a large load on the main structure, which also increases the material and construction costs of the main structure. [0004] Lightweight prefabricated exterior wall panel: its main structure is 30-50mm concrete or UHPC decorative surface layer + cold-rolled light steel keel + ...

AI Technical Summary

Problems solved by technology

[0004] Lightweight prefabricated exterior wall panel: its main structure is 30-50mm concrete or UHPC decorative surface layer + cold-rolled light steel keel + thermal insulation cotton / foamed concrete thermal insulation filling + indoor calcium silicate board / cement mortar layer; its main problems There are: multiple steps of dry and wet operations, the production process is more complicated, the connection process between the light steel structure and the surface concrete is more complicated, there is no more mature method, and there are cold bridges at the same time; moreover, the processing cost of the light steel itself is also relatively high. High, unable to control the cost; In addition, there are artificial differences in the fixation of light steel and rock wool, and it is not easy to fill densely, resulting in large differences in heat transfer coefficients of different products. At the same time, rock wool is used to fill the indoor living experience. There is a sense of hollowness when knocking, and it is not conducive to hanging heavy objects indoors; if wet work is used, such as foamed concrete or thermal insulation mortar, the joint surface between it and light steel is too large, making the adhesion between the two The small size leads to the risk of peeling or even cracking between the light steel when it is under load. At the same time, due to the large cross-section of the light steel, the area of ​​the cold bridge is greatly increased, which affects the overall thermal insulation performance of the product

[0005] With the development of the construction industry, the disadvantages of traditional building exterior wall materials are becoming more and more obvious. The insulation layer of the exterior wall falls off and hurts people, and the use of exterior wall insulation materials with substandard fire resistance grades leads to fires, causing huge losses to people's lives and property.

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