Polymer foam glue for thermal-insulating foam concrete

Abstract

The invention relates to polymer foam glue for thermal-insulating foam concrete. The polymer foam glue comprises a solid component and a liquid component in a mass ratio of 1.5-2.85. The solid component comprises the following materials in percentage by mass: 45%-50% of cement, 10%-15% of ultrafine cement, 10%-15% of silica fume, 25%-35% of coal ash, 5%-10% of expanding agent, 1.5%-2% of solid glue powder and 1.5%-2% of water reducing agent; the liquid component comprises the following materials in percent by mass: 85%-90% of water, 5%-10% of a water reducing agent, 5%-10% of a foaming agent, 3%-5% of latex and 2%-3% of a foam stabilizing agent. The polymer foam glue comprises the two forms of substances, i.e., the solid component and the liquid component; when in use, the two materials only need to be mixed and foamed by the foaming agent so as to obtain the foam glue for use; the produced polymer foam glue is low in density and good in plasticity, meanwhile, the bonding strength meets the requirement of a foam insulating plate for the bonding strength, and the bonding surface is more than 90%; the strength is high after drying, certain insulating effect is achieved, the redundant glue is used for jointing a surface frame of the insulating plate, the cold bridge effect at the joints is reduced and the insulating and energy-saving effects are improved; the polymer foam glue is matched with an internal expansion bolt for use, so that the installation is fast and convenient.

Description

technical field [0001] The invention relates to a polymer cement foam glue, in particular to a bonding foam glue specially used for heat-insulating foam concrete insulation boards. Background technique [0002] As we all know, the strength of foamed concrete is relatively low, and it is generally considered to have no bonding force. Therefore, in actual engineering practice, it is not used as a bonding material. Although foamed concrete itself is a cementitious material of Portland cement, it is mixed with foam In addition, the commonly used foam concrete uses a relatively large cement-ash ratio. The foam concrete has high fluidity and poor viscosity. Therefore, building insulation materials need to be mixed with bonding materials. [0003] The thermal insulation and energy saving of buildings has attracted more and more attention. The bonding material of existing building thermal insulation materials is generally polymer mortar. It is many times stronger than its own stren...

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Problems solved by technology

[0003] The thermal insulation and energy saving of buildings has attracted more and more attention. The bonding material of existing building thermal insulation materials is generally polymer mortar. It is many times stronger than its own strength, and it does not have thermal insulation performance. In addition, it has higher requirements on the wall surface, so it must be pasted on the plastered surface, otherwise it will affect the bonding effect, and increase the building's own weight and material costs.

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