High-strength self thermal insulation wall building block

Abstract

The invention relates to a high-intensity self-insulation wall building block which is mainly made of raw materials in the following parts by weight: 65 to 85 parts of cement, 10 to 15 parts of fly ash, an appropriate amount of water, 0.3 to 0.5 parts of foaming agent, 0.1 to 0.2 parts of air entraining agent, 0.8 to 2 parts of early-strength high-efficiency water reducing agent, 0.1 to 1 part of accelerating agent, 0.1 to 2 parts of shrinkage reducing agent, 80 to 100 parts of ceramsite and perlite, and 0.2 to 0.5 parts of polyphenyl particles. Insulation aggregate is adopted to replace normal aggregate, and insulation filling material is added. Slurry, the insulation aggregate, and the insulation filling material are compounded to obtain the self-insulation wall building block with good performance. The building block has the advantages that the compression strength is high and can achieve above 10 MPa, the coefficient of heat conduction is smaller than 0.020 W / m.K, the cold resisting property and the impermeability are good, the coefficient of condensation is small, and the construction is convenient, etc., thereby being the high-intensity self-insulation wall building block which can be directly used as an outer wall.

Description

technical field [0001] The invention relates to a wall building block, in particular to a self-insulating wall block with high strength and good thermal insulation performance, which belongs to the field of concrete. Background technique [0002] In order to improve the quality of the house and meet the requirements of building insulation, thermal insulation materials such as thermal insulation mortar and thermal insulation board are currently used for external facade insulation. Obviously, there are safety hazards such as complex construction, construction time is limited by environmental conditions, and easy to fall off. For example, the current construction market wall The mainstream method of body insulation is insulation mortar and EPS (XPS) board. From the perspective of long-term construction practice and engineering quality, there are great problems and hidden worries in the two materials. As we all know, the thermal insulation mechanism of thermal insulation mortar...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the above-mentioned complex thermal insulation construction of the exterior facade and the low strength and poor quality of the existing self-insulation blocks, and provide a high compressive strength, low thermal conductivity, good thermal insulation performance, and convenient construction. High-strength self-insulating wall blocks that can be used directly as exterior walls