Cement concrete liquid additive

A technology of liquid additives and cement concrete, applied in the field of concrete, can solve problems such as lack of strength, achieve the effect of enhancing mechanical strength and wide application range

Inactive Publication Date: 2021-03-26
江西富创新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the inventor was studying compound concrete liquid additives, he found that simple direct compounding of various additives often did not have good strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A high-efficiency concrete composite additive, comprising the following substances: 30 parts of thiocyanate, 5 parts of ferric chloride, 1 part of calcium lignosulfonate, 5 parts of ethylene oxide-propylene oxide copolymer, 10 parts of fructose, modified 8 parts of sodium humate, 1 part of lithium silicate, 10 parts of Span, and 80 parts of water.

[0026] The preparation method of described modified sodium humate comprises the following steps:

[0027] (1) Take humic acid ore powder, sodium hydroxide, sodium thiosulfate, add distilled water to mix, stir at 100-120 rpm, react at 100°C for 80 minutes, then centrifuge for 10 minutes at a speed of 3500 rpm, take supernatant;

[0028] (2) The supernatant is placed in a stainless steel tray, and dried in an oven at 80-180° C. to constant weight to obtain modified sodium humate.

[0029] The preparation method of above-mentioned additive comprises the following steps:

[0030] Step 1): mixing β-naphthalenesulfonate formald...

Embodiment 2

[0034] A high-efficiency concrete composite additive, comprising the following substances: 50 parts of thiocyanate, 10 parts of ferric chloride, 5 parts of calcium lignosulfonate, 15 parts of ethylene oxide-propylene oxide copolymer, 20 parts of fructose, modified 10 parts of sodium humate, 3 parts of lithium silicate, 15 parts of Span, and 120 parts of water.

[0035] The preparation method of described modified sodium humate comprises the following steps:

[0036] (1) Take humic acid ore powder, sodium hydroxide, sodium thiosulfate, add distilled water to mix, stir at 100-120 rpm, react at 100°C for 80 minutes, then centrifuge for 10 minutes at a speed of 3500 rpm, take supernatant;

[0037] (2) The supernatant is placed in a stainless steel tray, and dried in an oven at 80-180° C. to constant weight to obtain modified sodium humate.

[0038] The preparation method of above-mentioned additive comprises the following steps:

[0039] Step 1): mixing β-naphthalenesulfonate f...

Embodiment 3

[0043] A high-efficiency concrete composite additive, comprising the following substances: 35 parts of sodium thiocyanate, 5 parts of ferric chloride, 1 part of calcium lignosulfonate, 5 parts of ethylene oxide-propylene oxide copolymer, 10 parts of fructose, modified 8 parts of sodium humate, 1 part of lithium silicate, 10 parts of Span, and 100 parts of water.

[0044] The preparation method of described modified sodium humate comprises the following steps:

[0045] (1) Get humic acid mineral powder, sodium hydroxide, sodium thiosulfate,: cocoyl diethanolamine, barium dinonylnaphthalenesulfonate. Add distilled water to mix, stir at 100-120 rpm, react at 100°C for 80 minutes, then centrifuge for 10 minutes at 3500 rpm, and take the supernatant;

[0046] (2) The supernatant is placed in a stainless steel tray, and dried in an oven at 80-180° C. to constant weight to obtain modified sodium humate.

[0047] The preparation method of above-mentioned additive comprises the follo...

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Abstract

The invention aims to provide a cement concrete liquid additive which comprises the following substances in parts by weight: 30-50 parts of thiocyanate, 5-10 parts of ferric chloride, 1-5 parts of calcium lignosulphonate, 5-15 parts of ethylene oxide-propylene oxide copolymer, 10-20 parts of fructose, 8-10 parts of modified sodium humate, 1-3 parts of lithium silicate, 10-15 parts of span and 80-120 parts of water. Through the combined action of the components, after the additive is used for concrete, the mechanical strength of the concrete is further enhanced while the water seepage resistance, the impact resistance, the friction resistance, the water reduction, the delayed coagulation and the frost resistance of the concrete are ensured, so that the application range is wider.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a liquid additive for cement concrete. Background technique [0002] Concrete additives are substances added in the process of mixing concrete to improve the performance of concrete. According to the relevant technical standards, the amount added is not more than 5% of the cement mass. The main function of concrete additives is to improve the performance of fresh concrete and improve the performance of hardened concrete. Additives can effectively improve the performance of concrete and have good economic benefits. [0003] Concrete additives can be divided into the following four categories according to their main functions: (1) Additives that improve the rheological properties of concrete mixes. Including ordinary water reducer and high efficiency water reducer, air entraining agent and pumping agent, etc. (2) Additives to adjust the setting time and hardening performance of concrete....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B22/14C04B22/12C04B24/18C04B24/281C04B24/38C04B22/08C04B24/04C04B24/06C04B22/062C04B24/226C04B24/283C04B24/02C04B24/122C04B24/2623C04B22/165
Inventor 刘立功滕景鹏魏德柱蒋忠
Owner 江西富创新材料有限公司
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