Exterior wall external heat insulation protecting mortar

Abstract

The invention discloses outer heat preservation protection mortar for an outer wall. The protection mortar comprises the following components: 55 to 80 percent of filler, 10 to 30 percent of inorganic bonding material, 5 to 15 percent of organic bonding material, 0.2 to 1 percent of slow-drying agent, 0.1 to 0.3 percent of water retention agent, 0.01 to 0.3 percent of water retardant, 0.1 to 1 percent of water reducing agent, 0.1 to 1 percent of anti-forming agent and 0.1 to 0.5 percent of fiber, wherein the components are weighed up against a 100 percent total weight. The protection mortar of the invention is the dry mixing mortar prepared by a conventional method, and the raw materials and the mixing ratio can be strictly controlled, a series problems of cracking, leakage, hollow bed and falling-off, etc. can be avoided, so that the bonding mortar has the actions of bonding expanded polyphenylene plates with wall surfaces of substrates or putty and ensures stable and reliable mortar quality; moreover, the prepared outer heat preservation protection mortar for outer walls also has the advantages of saving the on-site material mixing time, improving performance and improving production efficiency and construction efficiency.

Description

technical field [0001] The invention relates to a protective mortar for protecting expanded polystyrene boards in an external wall thermal insulation system, in particular to a protective mortar for external thermal insulation of external walls that can prevent water seepage and prevent cracks. Background technique [0002] External wall thermal insulation system or external thermal insulation decoration system appeared in Europe in the early 1970s. The early external thermal insulation system of external wall is to add cement to emulsion adhesive at the construction site. This composite material will expand polystyrene The panels are fixed to the wall to be insulated. Use the same products and procedures to embed the fiberglass mesh into the reinforcement or insulation board primer emulsion. [0003] However, in practice, many problems have arisen when using this system, especially when the emulsion adhesive is mixed with cement on site. According to this process, the same...

AI Technical Summary

Problems solved by technology

[0005] At present, the quality of the mortar prepared on the construction site (whether it is masonry mortar, plastering mortar, or ground leveling mortar) is unstable, the strength does not meet the requirements, and even the quality is poor, resulting in a series of problems such as cracking, leakage, hollowing, and falling off. , has become a common problem in building quality

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