Concrete waterproofing agent

Abstract

The invention discloses a concrete waterproofing agent, which is prepared from the following raw materials in parts by weight: 15-20 parts of calcium lignosulphonate powder, 7-9 parts of alunite, 5-8parts of polyoxyethylene fatty alcohol ether, 4-8 parts of nano silica, 9-16 parts of sodium fluorosilicate, 5-8 parts of sodium alkylbenzenesulfonate, 5-10 parts of lassolatite powder, 4-10 parts ofsodium polyacrylate, 20-30 parts of sodium methyl silicate, 5-12 parts of chromium oxide, 7-12 parts of molasses, 10-18 parts of sulfur trioxide, 8-19 parts of calcium phosphate, 21-27 parts of tetraethyl orthosilicate, 10-14 parts of phenyl salicylate, 10-18 parts of calcium hydroxide, 3-7 parts of perfluorooctyltriethoxysilane, 10-20 parts of stearic acid and 1-3 parts of potassium hydroxide. The concrete waterproofing agent has a good waterproof effect as well as very good water reducing and leakage resisting effects; by determining all the components and content ranges thereof, all the components are enabled to achieve a more excellent synergistic effect; the concrete waterproofing agent can effectively improve the capillary pore structure of concrete, block the capillary pore channelinside the concrete, significantly improve the anti-seepage and waterproof functions, and has the effects of reinforcing, reducing water, resisting crack, and the like.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures, in particular to a concrete waterproofing agent. Background technique [0002] After ordinary concrete is hardened under general curing conditions, there will always be a certain degree of water seepage or leakage. It is very important to improve the waterproof and impermeable performance of concrete. There are two ways for concrete to produce water seepage: one is that when there is hydrostatic pressure on the two sides of the concrete, water can pass through some cracks or pores; the other is that due to capillary action, water is absorbed until there is unsaturated water. Steam evaporates off the surface. Concrete waterproofing agent is to reduce the above two effects in different ways, so as to improve the waterproof and anti-seepage ability. At present, there are many kinds of waterproofing agents, among which the main components of inorganic waterproofing agents are chloride sa...

AI Technical Summary

Problems solved by technology

Concrete waterproofing agent is to reduce the above two effects in different ways, so as to improve the waterproof and anti-seepage ability. At present, there are many kinds of waterproofing agents, among which the main components of inorganic waterproofing agents are chloride salt, lithium chloride salt, sulfate, water glass, Zirconium compounds, mineral powder, etc.; the main components of organic waterproofing agents are fatty acid metal salts, synthetic resins, water-soluble resins, various emulsions, etc. In recent years, an expansion agent has also been developed as the main agent, compounded with other external Intumescent waterproofing agent, but improper use will cause concrete cracking, due to the shortcomings of existing waterproofing agents in different degrees, it can not meet the waterproof and anti-seepage needs of construction projects