Waterproof cement slurry resistant to chemical harmful erosion

Abstract

The invention belongs to the technical field of building materials, in particular to waterproof cement slurry resistant to chemical harmful erosion. The waterproof cement slurry comprises the following raw materials: cement, hydroxy-terminated lactic acid oligomer with a molecular weight of 800-2000, a surface-active substance, a composite filler, glycollic acid, nickel sulfate hexahydrate, starchsodium octenylsuccinates, terpenyl epoxy resin and acrylate emulsion. Compared with the prior art, the waterproof cement slurry disclosed by the invention has the advantages that a powdered flexiblewaterproofing material made from multiple active chemicals is doped into cement, wherein ephedra fiber powder can contribute to improving the flexibility of the cement slurry and effectively improvingthe penetrating function and chemical harmful erosion, and the waterproof cement slurry has ultra-strong penetration capacity and excellent impervious performance, and is high in harmful chemical erosion resistance, capable of automatically and rapidly repairing micro-cracks, safe, environment friendly and excellent in waterproof performance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a cement waterproof slurry resistant to harmful chemical erosion. Background technique [0002] Cement waterproof slurry has good fluidity, strong coagulation with the base layer, high resistance to osmotic pressure, and good durability. It belongs to water-based environmental protection materials and is usually used in waterproof and moisture-proof projects for buildings. The permanent cement-based waterproof slurry cannot meet the requirements of rapid construction. After the construction is painted, the water storage test can only be done after the cement is cured. In the prior art, by adding sulfoaluminate as the main inorganic gel material, adding cement agent and retarder to make it solidify quickly, and at the same time ensure a certain flow time and construction time. After the slurry is solidified, water storage experiments can be carried out, ther...

AI Technical Summary

Problems solved by technology

[0002] Cement waterproof slurry has good fluidity, strong coagulation with the base layer, high resistance to osmotic pressure, and good durability. It belongs to water-based environmental protection materials and is usually used in waterproof and moisture-proof projects for buildings. The permanent cement-based waterproof slurry cannot meet the requirements of rapid construction. After the construction is painted, the water storage test can only be done after the cement is cured. In the prior art, by adding sulfoaluminate as the main inorganic gel material, adding cement agent and retarder to make it solidify quickly, and at the same time ensure a certain flow time and construction time. After the slurry is solidified, water storage experiments can be carried out, thereby improving construction efficiency. It can also be used in emergency repair projects, broadening the scope of polymer cement waterproofing. The scope of use of the slurry, but in the actual use process, the moisture of the waterproof material will be absorbed or volatilized by the base layer soon, and the insufficient hydration of the cement will lead to low strength, poor water resistance, long hardening time, and prolonged construction period. , Some sewage treatment pools, sewers, elevator shafts and other projects also put forward higher requirements for the chemical corrosion resistance of waterproof slurry. In view of the current situation, combined with green and sustainable development ideas, it is necessary to study a simple and fast construction. The strength develops rapidly, the flexibility is good, and it can be used as a waterproof slurry for dry, wet, and leaky interface construction