Thixotropic agent for polycarboxylate superplasticizer, thixotropic type polycarboxylate superplasticizer and application of thixotropic agent

A technology of water reducer and polycarboxylate, which is applied in the field of thixotropic agent for polycarboxylate water reducer and thixotropic polycarboxylate water reducer, can solve problems such as insufficient thixotropic performance, and achieve insufficient thixotropic performance , enhance thixotropy, improve the effect of early strength and thixotropy

Active Publication Date: 2017-02-22
中建西部建设新材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a thixotropic agent for polycarboxylate water reducer in view of the deficiencies in the above pr

Method used

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  • Thixotropic agent for polycarboxylate superplasticizer, thixotropic type polycarboxylate superplasticizer and application of thixotropic agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The thixotropic agent for polycarboxylate superplasticizer mainly includes 0.2 parts of white carbon black, 1 part of sodium carbonate, 2 parts of lithium carbonate and 1.5 parts of magnesium sulfate in parts by mass.

[0033]The application method of the above-mentioned thixotropic agent for polycarboxylate superplasticizer is as follows: fully mix the above-mentioned thixotropic agent with TPEG type polycarboxylate superplasticizer mother liquor in water to obtain good thixotropic performance in the application process of precast concrete Thixotropic polycarboxylate water reducer; wherein, the mass ratio of the thixotropic agent, polycarboxylate water reducer mother liquor effective solid content and water is 4.7:20:75.3, polycarboxylate water reducer mother liquor water reducing rate 30%.

[0034] Thixotropic polycarboxylate superplasticizer for precast concrete, composed of the following raw materials by mass percentage: white carbon black 0.2%, sodium carbonate 1%,...

Embodiment 2

[0039] The thixotropic agent for polycarboxylate superplasticizer mainly includes 0.5 parts of white carbon black, 9 parts of sodium carbonate, 3 parts of sodium sulfate and 1.5 parts of magnesium sulfate in parts by mass.

[0040] The application method of the above-mentioned thixotropic agent for polycarboxylate superplasticizer is as follows: fully mix the above-mentioned thixotropic agent with the VPEG type polycarboxylate superplasticizer mother liquor in water to obtain a good thixotropic performance in the application process of precast concrete. The thixotropic polycarboxylate water reducer; wherein, the mass ratio of the thixotropic agent, polycarboxylate water reducer mother liquor effective solid content and water is 7:15:28, the reduction of polycarboxylate water reducer mother liquor Water rate 30%.

[0041] Thixotropic polycarboxylate superplasticizer for precast concrete, composed of the following raw materials by mass percentage: white carbon black 0.5%, sodium...

Embodiment 3

[0046] The thixotropic agent for polycarboxylate superplasticizer, in parts by mass, its raw material components mainly include: 0.5 parts of white carbon black, 1 part of sodium carbonate, 1.5 parts of lithium carbonate, 0.5 parts of potassium carbonate, 0.5 parts of zinc sulfate, 1 part aluminum sulfate.

[0047] The application method of the thixotropic agent for the above-mentioned polycarboxylate superplasticizer is: fully mix the above-mentioned thixotropic agent with the mother liquor of the HPEG type polycarboxylate superplasticizer in water, and then a good thixotropic performance can be obtained in the application process of precast concrete. The thixotropic polycarboxylate water reducer; wherein, the mass ratio of the effective solid content of the thixotropic agent and the polycarboxylate water reducer mother liquor to water is 1:2:17, and the reduction of the polycarboxylate water reducer mother liquor Water rate 25%.

[0048] Thixotropic polycarboxylate superpla...

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Abstract

The invention provides a thixotropic agent for a polycarboxylate superplasticizer. The thixotropic agent is mainly prepared from components of raw materials in parts by mass as follows: 0.2-1 part of white carbon black, 3-12 parts of alkali carbonate and 1.5-6 parts of sulfate, wherein the thixotropic agent for the polycarboxylate superplasticizer and a polycarboxylate superplasticizer mother solution are sufficiently and uniformly mixed in water, and the thixotropic type polycarboxylate superplasticizer with excellent thixotropic performance in the precast concrete application process can be obtained. The thixotropic type polycarboxylate superplasticizer containing the thixotropic agent is doped in precast concrete, the thixotropy of the newly blended concrete can be remarkably improved, early strength development is promoted, and the problem that existing polycarboxylate superplasticizers don't have sufficient thixotropic performance in the precast concrete application process is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a thixotropic agent for a polycarboxylate water reducer, a thixotropic polycarboxylate water reducer and applications thereof. Background technique [0002] Prefabricated concrete components have the advantages of standardized production, green construction, advanced control of building quality, etc., and are an important way to realize the industrialization of construction. In recent years, with the rapid development of housing industrialization, the demand for prefabricated components is increasing. Concrete is the key material for the production of prefabricated components. Compared with ordinary ready-mixed concrete, prefabricated component concrete does not require greater fluidity, but in order to speed up formwork turnover and improve production efficiency, higher early strength (within 24h) is required; in addition , Precast concrete has a large am...

Claims

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Application Information

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IPC IPC(8): C04B22/14
CPCC04B40/0039C04B2103/0085C04B14/06C04B22/10C04B22/142C04B2103/302C04B22/147C04B22/148
Inventor 刘明陈景高育欣郑广军吕锐张宇傅承飞
Owner 中建西部建设新材料科技有限公司
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