Composite building block as well as production mold and production method thereof

Abstract

The invention discloses a composite building block as well as a production mold and a production method thereof. The invention provides the composite building block which is stable in structure, high in specific strength, low in water absorption, good in size stability, high in combustion grade, good in heat preservation property and low in cost, and the production mold and the production method of the composite building block. The composite building block comprises a bearing base body and at least one heat preservation body, wherein the heat preservation body is prepared from the following components in percentage by weight: 40-60% of cement, 8-15% of silica fume, 3-5% of hydrogen peroxide, 0.5-1% of a modifying agent and 31-38% of water; the bearing base body is prepared from the following components in percentage by weight: 20-40% of cement, 0-40% of tailing sand, 25-65% of a construction waste raw material, 10-40% of coal ash, 3-5% of a fiber bar-shaped material, 0.10-0.40% of hydrogen peroxide, 0.7-1.6% of an additive and 20-36% of water; at least one accommodation hole is formed in the bearing base body; the heat preservation body is arranged inside the accommodation hole and is combined with the inner wall of the accommodation hole. The invention provides the composite building block which is stable in structure, high in specific strength, low in water absorption, good in size stability, high in combustion grade, good in heat preservation property and low in cost on the whole.

Description

technical field [0001] The invention relates to an energy-saving, heat-preserving and reliable wall masonry material (block), a special production mold for processing the block, and a proprietary production method for processing the block. Background technique [0002] With the comprehensive advancement and continuous deepening of building energy conservation work in my country, there is an urgent need for different forms of thermal insulation systems, making the integration of structural energy conservation an important direction for the development and application of structural systems. The integration of structure and energy saving not only enriches the building structure system, but also better solves the problem of the same lifespan of the insulation system and the building, and promotes the innovation of wall materials and the development of building energy conservation in China. [0003] In the prior art, there are four main ways to prepare thermal insulation blocks u...

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Problems solved by technology

[0004] At this stage, the insulation blocks prepared by foam concrete mainly have the following disadvantages: (1) The insulation blocks prepared directly by foam concrete have high density, low specific strength, high water absorption, poor dimensional stability, and are prone to cracking, etc. At the same time, the production cost is high and the quality is unstable; (2) the use of foamed concrete mixed with ultra-light ceramsite to prepare insulation blocks has problems such as high production costs, limited raw materials, and unstable quality; (3) the use of foamed concrete Insulation blocks prepared with organic insulation materials such as polyurethane as the mold core, the combustion level is reduced from A to B1 or B2, or even B3; (4) Ultra-light foam concrete prepared by physical foaming technology is used as filling insulation material, which is prone to filling The slurry bleeds and settles, and after hardening, the dry apparent density is high, the thermal insulation performance is poor, and the surface appears sunken

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