Inorganic-organic composite permeable crystallization type concrete waterproof agent

Abstract

The invention discloses an inorganic-organic composite permeable crystallization type concrete waterproof agent. The waterproof agent is prepared from, by weight, 20-30 parts of sodium silicate, 5-9 parts of methyl sodium silicate, 2-6 parts of sodium alginate, 7-9 parts of gelatin, 1-4 parts of dodecyl ethoxy sulpho betaine, 1-3 parts of sodium carbonate, 1-4 parts of sodium citrate, 2-5 parts of triethanolamine, 5-10 parts of aluminum potassium sulfate, 3-6 parts of calcium sulfate, 1-3 parts of polyving akohol, 1-3 parts of calcium lignosulphonate, 3-5 parts of carboxy methyl cellulose, 1-4 parts of calcium chloride, 1-3 parts of boric acid and 55-75 parts of water. The inorganic-organic composite permeable crystallization type concrete waterproof agent has good waterproofness, endurance performance and self-curing performance and is low in cost and capable of being applied to waterproofing of house faces, basements, restrooms and the like.

Description

technical field [0001] The invention relates to an inorganic-organic composite permeable crystalline concrete waterproofing agent, which belongs to the technical field of concrete building waterproofing materials. Background technique [0002] Concrete is a multi-phase composite brittle material, its tensile strength is relatively low (about 1 / 20-1 / 10 of the compressive strength), and the ultimate tensile strain is relatively small (only 0.02%-0.03%). When it is in the process of hydration and hardening, due to drying shrinkage, chemical shrinkage, carbonation shrinkage and other reasons, the internal tensile stress caused by volume shrinkage and deformation is greater than its own tensile strength, cracking will occur in concrete, which can not only destroy its The impermeability of the structure will also affect its durability, the stability of steel bars and the safety of the building. In addition, concrete is also a heterogeneous material. From the perspective of macros...

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Problems solved by technology

However, domestic osmotic crystalline waterproof materials are mainly configured by importing osmotic crystalline masterbatches, such as Chinese patent numbers CN102786275B, CN101362867A, CN101654351A, etc. Therefore, the production cost of waterproof materials is relatively high, which limits its application in concrete waterproofing projects. Application range

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