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High-performance polycarboxylate water reducer

A polycarboxylic acid-based, water-reducing agent technology, applied in the field of concrete admixtures, can solve the problems of difficulty in control, affecting the quality of high-performance concrete, single performance, etc., and achieves small slump loss, high water reduction rate, and adsorption effect. Good results

Inactive Publication Date: 2015-03-25
GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the raw materials required for the production of high-performance concrete have strict requirements, regardless of the mud content of sand and stone or the fineness of fly ash and the amount of fire, there are strict requirements for high-efficiency water reduction in the construction of high-performance concrete. The requirements for the water reducing agent are also strict, both the water reducing rate of the water reducing agent and the air-entraining component of the water reducing agent will affect the quality of high performance concrete
[0004] At present, the high-efficiency water reducer on the market has a single performance, only has the function of water reduction, and has different adaptability to the cement of different manufacturers, and it must be compounded with other materials to change its adaptability, and it is difficult to control

Method used

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  • High-performance polycarboxylate water reducer
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  • High-performance polycarboxylate water reducer

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Take the following raw materials by weight percentage: solid content is 45wt.% acrylic polycarboxylate water-reducing mother liquor 21%, triethanolamine 8%, methylcellulose 7%, polyacrylamide 5%, Baume degree is 35 °Bé's sugar factory waste liquid 10%, water 49%;

[0024] Mix acrylic polycarboxylate water-reducing mother liquor, sugar factory waste liquid and water evenly, then add triethanolamine, methyl cellulose, and polyacrylamide, stir evenly, and stir for 10 minutes to obtain the product.

Embodiment 2

[0026] Weigh the following raw materials by weight percentage: 23% of methacrylic polycarboxylic acid water-reducing mother liquor with a solid content of 44wt.%, 7% of diethanol monoisoalcoholamine, 6% of hydroxyethyl methylcellulose, polypropylene Amide 6%, Baumé 9% of sugar factory waste liquid of 36°Bé, water 49%;

[0027] Mix the methacrylic polycarboxylic acid water-reducing mother liquor, sugar factory waste liquid and water evenly, then add diethanol monoisoolamine, hydroxyethyl methylcellulose, polyacrylamide, stir evenly, and stir for 15 minutes. Instantly.

Embodiment 3

[0029] Weigh the following raw materials by weight percentage: 26% of maleic anhydride water-reducing polycarboxylic acid series mother liquor with a solid content of 43wt.%, 5% of triisopropanolamine, 4% of hydroxypropyl methylcellulose, polypropylene Amide 6%, Baumé 8% of sugar factory waste liquid of 38°Bé, water 51%;

[0030] Mix maleic anhydride-based polycarboxylic acid water-reducing mother liquor, sugar factory waste liquid and water evenly, then add triisopropanolamine, hydroxypropyl methylcellulose, polyacrylamide, stir evenly, and stir for 20 minutes, that is have to.

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Abstract

The invention relates to the technical field of concrete admixtures and particularly relates to a high-performance polycarboxylate water reducer prepared from the following raw materials in percentage by weight: 21-31% of a polycarboxylate water reducing mother solution, 2-8% of alcohol amine compounds, 2-7% of cellulose water retaining materials, 5-8% of polyacrylamide, 5-10% of waste liquid from a sugar refinery, and the balance being water. The water reducer disclosed by the invention is high in water reducing rate, small in slump loss and high in adaptability with cement and has a retarding effect.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures, in particular to a high-performance polycarboxylate water reducer. Background technique [0002] Polycarboxylate superplasticizer is the third-generation superplasticizer with excellent comprehensive performance. It has been produced and applied in Japan, Germany, the United States and other developed countries since the late 1980s. It has many advantages such as high water reducing rate, small loss of concrete slump over time, low dosage, great contribution to concrete strength, and good environmental protection. From high-speed railways to urban commercial concrete mixing stations, many domestic application companies have begun to choose polymer Carboxylic acid superplasticizer is an essential fifth component of concrete. As a new type of material, concrete water reducer can not only improve the level of construction technology, improve the performance of concrete, but also save a ...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/30
Inventor 尹丹黄煌陈威王恒阮长泰
Owner GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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