High-performance sealing curing agent, preparation method thereof and application thereof in concrete

Abstract

The invention discloses a high-performance sealing curing agent, a preparation method thereof and application thereof in concrete. The high-performance sealing curing agent is prepared from the following raw materials in parts by weight: 40-50 parts of sodium silicate, 10-20 parts of vinyl tri-methoxysilane, 6-8 parts of cement, 5-15 parts of modified bentonite, 16-20 parts of water, 7-9 parts of glycerol, 2-4 parts of trisodium phosphate and 1-3 parts of sodium alginate. A preparation method of the modified bentonite comprises the following steps: adding 25-35 parts of bentonite into 85-95 parts of methylbenzene; stirring for 30-50min, and adding 30-40 parts of benzotriazole, 1-3 parts of p-toluenesulfonic acid, 1-2 parts of p-tert-Butylcatechol and 0.2-0.4 part of beta-phenyl naphthylamine; carrying out refluxing reaction for 4-6h, filtering after cooling, and washing and drying to obtain the modified bentonite. After the high-performance sealing curing agent provided by the invention is painted to the surface of concrete, the abrasion loss of the concrete can be obviously lowered. Compared with the prior art, the high-performance sealing curing agent has outstanding substantial characteristics and prominent progress.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a high-performance sealing and curing agent, a preparation method thereof and an application in concrete. Background technique [0002] Seal curing agent, also known as liquid hardener or concrete sealer. At present, the inorganic concrete floor hardeners on the market are mainly composed of three types of products: the first type is a sodium-based salt product mainly composed of sodium silicate, which can give priority to improving the strength and wear resistance of concrete, but has poor durability and is easy to Pan-alkali affects the floor effect in the later stage; the second type is potassium-based salt products with potassium silicate as the main component, and its performance is not significantly improved compared with sodium-based salt; the third type is lithium-based salt products with lithium silicate as the main component. Base salt products are mostly ...

AI Technical Summary

Problems solved by technology

At present, the inorganic concrete floor hardeners on the market are mainly composed of three types of products: the first type is a sodium-based salt product mainly composed of sodium silicate, which can give priority to improving the strength and wear resistance of concrete, but has poor durability and is easy to Pan-alkali affects the floor effect in the later stage; the second type is potassium-based salt products with potassium silicate as the main component, and its performance is not significantly improved compared with sodium-based salt; the third type is lithium-based salt products with lithium silicate as the main component. Base salt products, most of the products imported from abroad are such products, and their sealing and hardening effects are more significant, but because they are imported products, their prices are relatively expensive