A kind of preparation method of hydrophobic pore plug for composite biografted concrete

Abstract

The invention relates to the technical field of building admixtures, more specifically, to a method for preparing a composite biografted concrete hydrophobic pore plug. After adding alkylene polyoxyethylene ether into hydrogen peroxide and continuously stirring for 5 minutes, the liquid A , B solution and C solution are added dropwise for 2 hours, 2.5 hours and 1.5 hours respectively; the product has a very high degree of purification during the compounding process, and has good anti-corrosion, anti-acid and anti-alkali effects in use. After a certain proportion After being added to concrete, it can well replace traditional hydrophobic compounds, and the synthesis process is relatively simple, which is easy for industrial production.

Description

technical field

[0001] The invention relates to the technical field of building admixtures, and more particularly, to a preparation method of a hydrophobic pore plug for composite biografted concrete. Background technique

[0002] Concrete hydrophobic compound pore plugs are used in concrete to effectively limit water absorption and permeability even under water pressure. It can treat the capillary phenomenon in concrete from the root of the disease, make the water drain out of the concrete, change the water absorption problem of capillary pores, prevent concrete leakage and chloride ion penetration, and solve the durability problems such as steel corrosion. Most of the lifespan is more than 100 years. The durability of concrete is a key factor in determining the life of concrete components. Preventing concrete cracking and improving the overall impermeability of concrete in the process of concrete mix design has become the key to improving the life of concrete. Most of the...

Examples

Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] A preparation method of a hydrophobic pore plug for composite biografted concrete, comprising the following steps:

[0021] S1. Add alkylene polyoxyethylene ether and distilled water to the container, stir at a stirring speed of 400 r / min, introduce nitrogen, stir at 39-41 ° C for 20 min, add hydrogen peroxide and continue stirring for 5 min, mix liquid A, liquid B and Liquid C was added dropwise for 2 hours, 2.5 hours and 1.5 hours respectively;

[0022] S2, cooling for 20 minutes to obtain raw material one;

...

technical field

[0001] The invention relates to the technical field of building admixtures, and more particularly, to a preparation method of a hydrophobic pore plug for composite biografted concrete. Background technique

[0002] Concrete hydrophobic compound pore plugs are used in concrete to effectively limit water absorption and permeability even under water pressure. It can treat the capillary phenomenon in concrete from the root of the disease, make the water drain out of the concrete, change the water absorption problem of capillary pores, prevent concrete leakage and chloride ion penetration, and solve the durability problems such as steel corrosion. Most of the lifespan is more than 100 years. The durability of concrete is a key factor in determining the life of concrete components. Preventing concrete cracking and improving the overall impermeability of concrete in the process of concrete mix design has become the key to improving the life of concrete. Most of the...

Examples

Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] A preparation method of a hydrophobic pore plug for composite biografted concrete, comprising the following steps:

[0021] S1. Add alkylene polyoxyethylene ether and distilled water to the container, stir at a stirring speed of 400 r / min, introduce nitrogen, stir at 39-41 ° C for 20 min, add hydrogen peroxide and continue stirring for 5 min, mix liquid A, liquid B and Liquid C was added dropwise for 2 hours, 2.5 hours and 1.5 hours respectively;

[0022] S2, cooling for 20 minutes to obtain raw material one;

...

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