Anti-stretching cement-based seepage crystallization type waterproof material

Abstract

The invention discloses an anti-stretching cement-based seepage crystallization type waterproof material, which is prepared from 60 percent of an ingredient A and 35 percent of an ingredient B, wherein the ingredient A is prepared from the following raw materials in parts by weight: 100 parts of Portland cement, 60 to 80 parts of quartz sand, 35 to 45 parts of composite resin glue powder, 3 to 7 parts of water reducing agents and 1 to 3 parts of ultraviolet light absorbers; the ingredient B is prepared from the following raw materials in parts by weight: 30 to 40 parts of barium oxide, 20 to 30 parts of strontium oxide, 25 to 35 parts of magnesium tartrate, 15 to 25 parts of zinc sulfate and 10 to 20 parts of calcium sulphoaluminate; the composite resin glue powder is prepared from 35 to 55 percent of organic silicon modified epoxy resin, 25 to 35 percent of polyphenol oxygen resin and 20 to 30 percent of polycarbonate resin. The composite resin glue powder introduces flexible long-chain structures into a concrete substrate; the elastic coefficient and the anti-stretching intensity of the waterproof paint can be improved; the mutual action of the ingredient B, quartz sand and wateris utilized to obtain a tendrils type crystal body through crosslinking; cracks in the cement-based structure are filled and restored; the waterproof paint intensity and stability are improved.

Description

technical field [0001] The invention belongs to the field of waterproof materials, in particular to a stretch-resistant cement-based permeable crystalline waterproof material. Background technique [0002] The cement-based permeable crystalline waterproof material uses water as the carrier, and under the guidance of water, the concrete and active substances undergo chemical changes to form insoluble dendritic crystals, which block the concrete micropores and capillary channels, forming a closed waterproof layer as a whole to achieve long-lasting Waterproof and corrosion-resistant effects, at the same time, the moisture infiltrated in the local damaged area can activate the active material again, and generate crystals to repair cracks, avoiding the cracking and seepage phenomenon caused by the unstable structure of ordinary cement-based materials, but due to cement-based bone The brittleness of the material is high, and there are still problems of poor compressive, flexural a...

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Problems solved by technology

[0002] The cement-based permeable crystalline waterproof material uses water as the carrier, and under the guidance of water, the concrete and active substances undergo chemical changes to form insoluble dendritic crystals, which block the concrete micropores and capillary channels, forming a closed waterproof layer as a whole to achieve long-lasting Waterproof and corrosion-resistant effects, at the same time, the moisture infiltrated in the local damaged area can activate the active material again, and generate crystals to repair cracks, avoiding the cracking and seepage phenomenon caused by the unstable structure of ordinary cement-based materials, but due to cement-based bone The material is highly brittle, and there are still problems of waterproof materials with poor compressive, flexural and tensile properties

[0003] The patent application number is CN201710047477.9, which discloses cement-based osmotic crystalline waterproofing agent and its preparation method. The waterproofing agent uses sodium metasilicate pentahydrate, calcium chloride, hydroxypropyl methylcellulose, silicone oil and tartaric acid as osmotic crystalline Masterbatch, use sodium metasilicate pentahydrate, calcium chloride and calcium and magnesium ions in cement to form silica gel and silicate gel, bond and fill pores, but the waterproof material only contains Portland cement, quartz sand, Rigid aggregates such as fly ash have not yet solved the problems of low flexibility, high brittleness, and poor tensile performance of traditional cement-based permeable crystalline waterproof materials. Effect

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