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Polycarboxylate water reducing agent for concrete

A technology of polycarboxylic acid and water reducing agent, applied in the field of water reducing agent, can solve the problems of poor retarding effect, poor adaptability of raw materials, poor water retention, etc., achieve good water reducing effect, improve mechanical properties, and increase strength

Inactive Publication Date: 2014-03-05
ANHUI FUNAN LVYUAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the water reducing agents currently used have great shortcomings, such as poor adaptability of raw materials, poor retarding effect, poor water retention, etc. Therefore, it is very necessary to produce high-performance water reducing agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A polycarboxylate water reducer for concrete, which is composed of the following raw materials in parts by weight (kg):

[0014] HY801 polycarboxylate high-performance water reducing agent 50, borax 7, triethanolamine 1, magnesium borate 2, triallyl cyanurate 2, calcium chloride 1, fatty alcohol polyoxyethylene ether sodium sulfate 1-2, di Methyl sulfoxide 0.3, sulfamic acid 4, tackifier 0.8;

[0015] Described thickening agent is made up of the raw material of following weight part:

[0016] SBR latex adhesive 30, chitosan 2, jade powder 1, bentonite 3, rosin 5, eucalyptus oil 2, pentaerythritol 3;

[0017] Heat the above-mentioned pentaerythritol to 165°C, add jade powder and bentonite, stir and disperse at 600 rpm for 14 minutes, add chitosan, ball mill for 5 minutes, heat and melt the rosin and add, mix well, and finally add styrene-butadiene latex adhesive, fully Ball milling and cooling to obtain the tackifier.

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PUM

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Abstract

The invention discloses a polycarboxylate water reducing agent for concrete. The polycarboxylate water reducing agent is characterized by mixing the following raw materials in parts by weight: 40-50 parts of a high-property polycarboxylate water reducing agent, 5-7 parts of borax, 1-2 parts of triethanolamine, 1-2 parts of magnesium borate, 2-3 parts of cyanuric acid triene propyl ester, 1-2 parts of calcium chloride, 1-2 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 0.3-1 part of dimethyl sulfoxide, 2-4 parts of sulfamic acid and 0.8-2 parts of thickening agent. The water reducing agent disclosed by the invention has a good water reducing effect and remarkable delayed coagulation action, and is capable of improving strength of concrete at early stage and different stages and capable of improving the mechanical properties of the concrete, reducing surface shrinkage and crack and improving anti-permeability and durability of the concrete.

Description

technical field [0001] The invention mainly relates to a water reducer, in particular to a polycarboxylate water reducer for concrete. Background technique [0002] Water reducing agent refers to the admixture that can reduce the mixing water consumption and improve the concrete strength under the condition of constant workability and cement dosage of concrete; or save the dosage of cement under the condition of constant workability and strength. Some of the water reducing agents currently used have great shortcomings, such as poor adaptability of raw materials, poor retarding effect, poor water retention, etc. Therefore, it is very necessary to produce high-performance water reducing agents. Contents of the invention [0003] The purpose of the present invention is to provide a polycarboxylate water reducer for concrete. [0004] The present invention is achieved through the following technical solutions: [0005] A polycarboxylate water reducer for concrete, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24C04B24/16C04B103/30
Inventor 李磊
Owner ANHUI FUNAN LVYUAN CHEM
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