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High-temperature retarding and water reducing agent

A retarding water reducer and high temperature technology, applied in the field of concrete admixtures, can solve the problems of insufficient high temperature resistance and inability to meet the needs of high temperature and high pressure cementing construction, and achieve good slump retention, significant water reduction and enhancement effects, and broad The effect of market prospects

Inactive Publication Date: 2014-10-29
WUHU SANXING CONCRETE ADMIXTURE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The retarding superplasticizers currently used in the market have insufficient high temperature resistance and cannot meet the needs of high temperature and high pressure cementing construction

Method used

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  • High-temperature retarding and water reducing agent

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Embodiment Construction

[0010] A high-temperature retarding water reducer, which is made by mixing the following raw materials by weight (kg): polycyclic aromatic hydrocarbon sulfonate formaldehyde condensate 35-45, aliphatic hydroxyl sulfonate condensate 20-30, diethylenetri Aminopentamethylenephosphonic acid 10-15, sugar calcium 8-16, alum stone powder 12-18, xanthan gum powder 5-10, barium metaborate 4-8, sodium lauryl sulfate 3-6, pentaerythritol distearate Esters 2-4, maleic anhydride-styrene sulfonic acid copolymer 6-12, blast furnace slag powder 10-15, waste sugar slag powder 5-10, pull-off powder 7-13, additives 4-7;

[0011] The auxiliary agent is made of the following raw materials in parts by weight: 10-15 parts by weight of magnesite, 3-6 parts of magnesium humate, 2-4 parts of ammonium benzoate, 6-12 parts of sodium α-alkenyl sulfonate, 6-12 parts of inositol Phosphate ester 1.5-2.5, isobutylene triethoxysilane 3-5, polyferric chloride 5-10, germanite powder 12-18, titanium dioxide 5-10,...

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Abstract

The invention discloses a high-temperature retarding and water reducing agent prepared by mixing the following raw materials in parts by weight: 35-45 parts of polycyclic aromatic hydrocarbon sulfonated formaldehyde condensates, 20-30 parts of acyclic hydroxyl sulfonate condensates, 10-15 parts of diethylenetriaminepenta(methylene-phosphonic acid), 8-16 parts of calcium saccharate, 12-18 parts of alunite powder, 5-10 parts of xanthan gum powder, 4-8 parts of barium metaborate, 3-6 parts of sodium lauryl sulfate, 2-4 parts of pentaerythrite di-n-stearate, 6-12 parts of maleic anhydride-styrene sulfoacid copolymers, 10-15 parts of blast furnace slag powder, 5-10 parts of waste saccharide slag powder, 7-13 parts of nekal and 4-7 parts of auxiliary. The water reducing agent disclosed by the invention is excellent in high temperature resistance, relatively wide in applicable temperature range (150-250 DEG C), capable of reducing cement hydration heat release, reducing the temperature stress of the concrete, avoiding generating temperature cracks and completely meeting the construction requirement for high-temperature and high-pressure well cementation, suitable for continuously pouring mass concrete under a high temperature condition, remarkable in water reducing enhancement effect, good in slump loss resistance and wide in market prospect.

Description

technical field [0001] The invention relates to a high-temperature retarding 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, retarding superplasticizer is a kind of concrete admixture, which can delay the setting time of concrete, make fresh concrete maintain plasticity for a long time, facilitate pouring, improve construction efficiency, and at the same time, it will not cause adverse effects on various performances of concrete in the later stage effect, and also has the effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/22
Inventor 蔺红亮徐松夏晖
Owner WUHU SANXING CONCRETE ADMIXTURE
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