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Liquid cement synergist

A cement synergist and liquid technology, applied in the field of concrete additives, can solve the problems of general gel structure strength and limited cement reaction balance, and achieve the effects of increasing strength, reducing dosage and improving mechanical strength

Active Publication Date: 2021-06-25
HANGZHOU LIPING IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above process, the reaction balance of cement is limited, and the strength of the formed gel structure is average, so there is a large room for improvement.

Method used

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  • Liquid cement synergist
  • Liquid cement synergist
  • Liquid cement synergist

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0037] Preparation example 1, polycarboxylic acid compounds, synthesized by aqueous solution free radical polymerization method, the details are as follows: in the aqueous solution, add octylphenol polyoxyethylene ether with a concentration of 20mM, heat up to 80°C, and mix well, Add ascorbic acid at a concentration of 0.2mM, add hydrogen peroxide at a concentration of 0.5mM, and then add a mixed solution of methacrylic acid and silane coupling agent KH570 dropwise. The mass of methacrylic acid added is 0.1 times that of octylphenol polyoxyethylene ether , The ratio of the amount of silane coupling agent to methacrylic acid is 1:5, the time for dropping is 2h, after the dropwise addition is completed, keep warm for 12h, then distill under reduced pressure at 80°C, remove the solvent, and then cool to room temperature .

preparation example 2

[0038] Preparation Example 2, polycarboxylic acid compound, differs from Preparation Example 1 in that the ratio of the amount of silane coupling agent KH570 to methacrylic acid is 1:8.

preparation example 3

[0039] Preparation Example 3, polycarboxylic acid compound, differs from Preparation Example 1 in that the ratio of the amount of silane coupling agent KH570 to methacrylic acid is 1:12.

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Abstract

The invention relates to the field of concrete additives, in particular to a liquid cement synergist which comprises polycarboxylic acid compounds, ethylene-vinyl acetate latex powder, active micro powder, aromatic polycarboxylic acid, a cosolvent and water. According to the present invention, the components are compounded so that the good glue reducing effect can be achieved, and the concrete has characteristics of workability and strength.

Description

technical field [0001] The application relates to the field of concrete additives, more specifically, it relates to a liquid cement synergist. Background technique [0002] Cement synergist is an additive used to reduce the amount of cement used in concrete production. During the production process of concrete, the cement can bind the aggregate components together through hydration reaction to form a gel system, and then combine the coarse aggregate and fine aggregate together to make the concrete generate strength. However, during the use of cement, part of the cement is not fully hydrated, and only exists in the concrete structure as a filling component. Therefore, in order to form a sufficient gel structure in the concrete, it is often necessary to add more cement. On the other hand, the overall strength of the concrete is limited. The purpose of adding cement synergist is to allow cement to react more fully in the concrete system, thereby reducing the amount of cement ...

Claims

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Application Information

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IPC IPC(8): C04B24/32
CPCC04B40/0039C04B24/26C04B24/32C04B24/04C04B22/143C04B24/02C04B18/023C04B14/062Y02W30/91
Inventor 陈礼平高全英陈骁斌
Owner HANGZHOU LIPING IND & TRADE CO LTD
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