Gangue foam concrete building block for realizing self heat insulation of walls

Abstract

A gangue foam concrete building block for realizing self heat insulation of walls relates to a self-heat-insulation foam concrete building block of light walls and consists of a high-strength gangue foam concrete shell and an ultra-low-density foam concrete core. Gangue solid wastes are utilized as main raw materials, are used for preparing the gangue foam concrete building block for realizing self heat insulation of walls, and are turned into wealth, cost of products is reduced, natural resources are saved, and the gangue foam concrete building block is favorable for environmental protection. In addition, the gangue foam concrete building block further has the advantages that strength is high, heat conduction coefficient is low, heat insulation is good, the gangue foam concrete building block is directly plastered after being built, heat insulation treatment on the inner side or outer side of a wall is not required, construction speed is greatly increased, construction completion time is shorted, and the like. Accordingly, the gangue foam concrete building block can be widely used for building single heat-insulation walls (with a self heat insulation effect) of external walls, internal and external partition walls of frame structures, rear plate walls of large wall cabinets, and fireproof, sound-insulation and heat-insulation layers of internal walls.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a foam concrete block for wall self-insulation. Background technique [0002] With the implementation of my country's wall reform and building energy-saving policies, the materials used in modern buildings not only have the properties of light weight, high strength, heat preservation, heat insulation, waste utilization, and energy saving, but also require materials to be non-combustible. As a new type of building material, foam concrete has the above properties and will quickly replace the widely used organic combustible thermal insulation materials in building energy-saving projects. Existing wall self-insulation blocks, such as the "Z-type single-cavity self-insulation block" with the publication number CN201089993, the "composite self-insulation block" with the publication number CN201137245, and the "a load-bearing self-insulation block" with the publication numbe...

AI Technical Summary

Problems solved by technology

Existing wall self-insulation blocks, such as the "Z-type single-cavity self-insulation block" whose publication number is CN201089993, the "composite self-insulation block" whose publication number is CN201137245, and the "a load-bearing self-insulation block" whose publication number is CN201354490 Most of the patented products such as "insulation block" and "a self-insulation insert block" with the publication number CN201411814, the disclosed block structure is mainly composed of high-strength shell and hollow or filled with materials with low thermal conductivity such as organic foam The existing blocks mainly have the following disadvantages: (1) Most of the high-strength shells are not made of foam concrete, which has high density and large thermal conductivity, which has a certain impact on thermal insulation performance. To meet the national energy-saving 65% standard, the thickness of the block increases, resulting in a larger thickness of the wall; (2) the organic foam used for filling is flammable and not resistant to high temperature; (3) the inorganic foam used for filling Non-combustible thermal insulation materials, the price is relatively high or has great regional restrictions, and the transportation cost is relatively high, etc.

Although the public number is CN201695560U "foam concrete sandwich self-insulation block" patent discloses that the outer shell of the block is prepared by foam concrete, and the inner layer is also an inorganic material, which solves the problem of high density, large thermal conductivity, and flammability of other patents. problems, but there are the following defects: (1) its compressive strength is very low, only 0.4MPa, which is difficult to meet the strength requirements of the external wall for a single wall material; (2) the materials used for the blocks are cement and powder Coal ash and cement are used in a large amount and the cost is high

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