Repairing material of outer wall thermal-insulation layer

Abstract

The invention discloses a repairing material of an outer wall thermal-insulation layer. The repairing material comprises a bottom coating layer and a surface coating layer, wherein the weight ratio of the bottom coating layer to the surface coating layer is 2:1, the bottom coating layer comprises, by weight, 30-34 parts of PBT resin, 4-5 parts of PBT resin curing agent, 3-4 parts of phosphite ester, 0.3-0.6 part of coupling agent, 0.2-0.4 part of anti-aging agent, 7-10 parts of calcium stearate, 2-4 parts of talcum powder and 4-5 parts of pigment. The repairing material made by various auxiliary materials is safe, free of pollution, excellent in permeation resistance, pollution resistance and water resistance, nontoxic, low in manufacturing cost and wide in application range.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a repairing material for an external wall thermal insulation layer. Background technique [0002] The reduction in the durability of hydraulic concrete is mainly caused by concrete damage. Because the concrete surface of the dam is subject to various tests of temperature changes, water erosion, alternating wet and dry cycles, and freeze-thaw cycles, cracking, carbonization, and continuous weathering and erosion occur. impact, and ultimately endanger the safety of the dam. In order to prevent the service life of the dam from being affected by concrete damage, the project must be properly designed to ensure excellent construction quality, and special protection of the project concrete is also required. [0003] Since the outer surface of hydraulic concrete is generally subjected to various tests of temperature changes, water erosion, alternating dry and wet cycles, an...

AI Technical Summary

Problems solved by technology

[0003] Since the outer surface of hydraulic concrete is generally subjected to various tests of temperature changes, water erosion, alternating wet and dry cycles, and freeze-thaw cycles, the repair and protection materials should not only have super weather resistance and aging resistance, but also have excellent mechanical properties. performance, so the research and development of materials is relatively difficult

There are many kinds of polymer materials, but there are relatively few polymer materials that not only have super weather resistance and aging resistance, but also have excellent mechanical properties.