Collapse prevention type water reducing agent

A water-reducing agent and slump-preserving technology, which is applied in the field of concrete admixtures, can solve problems such as inability to meet the construction requirements of high-performance concrete, short slump retention time, and poor water-reducing performance, so as to avoid segregation or bleeding , small slump loss and excellent slump retention

Inactive Publication Date: 2014-10-29
遵义中建西部建设有限公司
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AI Technical Summary

Problems solved by technology

The slump-retaining water-reducing agents currently used in the market still have the defects of short slump retention time and high-temp

Method used

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  • Collapse prevention type water reducing agent

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Embodiment Construction

[0009] A slump-preserving water reducer, which is made by mixing the following raw materials (kg): methylnaphthalene sulfonate formaldehyde condensate 56, polycyclic aromatic hydrocarbon sulfonate formaldehyde condensate 32, glycerol polyoxyethylene ether ethyl Caproic acid ester 24, porous calcium phosphate 18, rock wool powder 12, sodium polystyrene sulfonate 8, aloe vera powder 6, squalane 5.5, diisobutyl carbinol 4, algin oligosaccharide 3, sodium hyaluronate 3.5, sand deposit powder 8, volcanic ash 12, lauric acid diethanolamide 4, hydroxypropyl guar gum powder 6, additive 4.5;

[0010] The preparation method of the auxiliary agent is as follows: a, take the following raw materials in parts by weight: active magnesium oxide 80, tuff micropowder 14, desulfurization ash 12, melamine urea-formaldehyde resin 16, microporous calcium silicate 8, polyisobutylene 7, ethylene tertiary carbonate Ester 5, 2-methyl-2,4-pentanediol polyoxypropylene polyoxyethylene ether 2.5, sodium pe...

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Abstract

The invention discloses a collapse prevention type water reducing agent which is prepared by mixing the following raw materials in parts by weight: 48-62 parts of methyl naphthalenesulfonate formaldehyde condensate, 24-36 parts of polycyclic aromatic hydrocarbon sulfonate formaldehyde condensate, 16-28 parts of glycerinum polyoxyethylene ether ethylhexoate, 15-20 parts of porous calcium phosphate, 10-15 parts of rock wool powder, 5-10 parts of sodium polystyrenesulfonate, 5-10 parts of aloe powder, 4.5-6.5 parts of squalane, 3-5 parts of diisobutyl methanol, 2-4 parts of sodium alginate oligose, 2.5-4.5 parts of sodium hyaluronate, 6-12 parts of sand powder, 10-15 parts of volcanic ash, 3-6 parts of lauric acid diglycollic amide, 4-8 parts of hydroxypropyl guar gum powder and 3-6 parts of additives. The collapse prevention type water reducing agent disclosed by the invention is excellent in collapse prevention, small in collapse loss and high in water reduction rate, can avoid separation or bleeding, and is remarkable in concrete reinforcement effect, good in concrete adaptability and particularly good in adaptability for middle/low flowbility concrete in a high-temperature environment in summer.

Description

technical field [0001] The invention relates to a slump-retaining water reducer, which belongs to the field of concrete admixtures. Background technique [0002] Concrete admixtures, referred to as admixtures for short, refer to substances that are added to improve the performance of concrete before or during the mixing of concrete. Because admixtures can effectively improve the performance of concrete and have good economic benefits, they have been widely used in many countries, and their application in engineering has attracted more and more attention, becoming an indispensable material in concrete. Among them, the slump-preserving water-reducing agent is one of the concrete admixtures, which can keep the slump of the concrete from losing quickly and achieve the effect of maintaining the slump. The slump-retaining water-reducing agents currently used in the market still have the defects of short slump retention time and high-temperature failure, and their water-reducing p...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/30
Inventor 蔺红亮徐松夏晖
Owner 遵义中建西部建设有限公司
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