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A liquid cement synergist

A cement synergist, liquid technology, applied in the field of concrete additives, can solve the problems of limited cement reaction balance, general gel structure strength, etc., to achieve the effect of increasing strength, improving mechanical strength, and increasing the degree of crosslinking

Active Publication Date: 2022-05-17
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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  • A liquid cement synergist
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  • A liquid cement synergist

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0037] Example 1 of the preparation, polycarboxylic acid compounds, synthesized by aqueous solution free radical polymerization method, as follows: In the aqueous solution, add a concentration of 20mM octylphenol polyoxyethylene ether, heated to 80 ° C, and after thorough mixing, According to the concentration of 0.2mM added ascorbic acid, according to the concentration of 0.5mM added hydrogen peroxide, followed by dropwise added methacrylic acid and silane coupling agent KH570 mixed solution, the drop-added mass of methacrylic acid is 0.1 times the octylphenol polyoxyethylene ether, the ratio of the amount of silane coupling agent to methacrylic acid is 1:5, the drop-adding time is 2h, the insulation reaction is 12h after the drop-added is completed, and then distilled under reduced pressure at 80 °C, the solvent is removed, and then cooled to room temperature.

preparation example 2

[0038] Preparation Example 2, polycarboxylic acid compounds, the difference from the preparation of Example 1 is that the silane coupling agent KH570 and the amount of the substance of methacrylic acid ratio of 1: 8.

preparation example 3

[0039] Preparation Example 3, polycarboxylic acid compounds, and the difference from preparation Example 1 is that the ratio of the amount of silane coupling agent KH570 to the substance of methacrylic acid is 1:12.

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Abstract

The application relates to the field of concrete additives, more specifically, it relates to a liquid cement synergist, including polycarboxylic acid compounds, ethylene-vinyl acetate latex powder, active micropowder, aromatic polycarboxylic acid, cosolvent and water. In this application, through the compounding of the above-mentioned components, the beneficial effects of good adhesive reduction effect and both workability and strength of concrete can be realized.

Description

Technical field [0001] The present application relates to the field of concrete additives, more specifically, it relates to a liquid cement synergist. Background [0002] Cement synergists are additives used to reduce the amount of cement used in concrete production. In the production process of concrete, cement can bond the aggregate components together through hydration reaction to form a gel system, which in turn combines coarse aggregate and fine aggregate to make the concrete strong. However, in the process of use of cement, the hydration of some cement is not sufficient, but only exists in the concrete structure as a filling component, so in order to form a sufficient gel structure in the concrete, it is often necessary to add more cement, which also causes the overall strength of the concrete to be limited on the other hand. The purpose of adding cement synergists is to make cement react more fully in the concrete system, thereby reducing the amount of cement used and imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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