Multifunctional cement concrete reducing and anti-cracking curing agent

A cement concrete and multi-functional technology, applied in the field of cement concrete, can solve the problems of single function, poor concrete reinforcement effect, and large dosage, and achieve the effects of preventing water evaporation and shrinkage reducing agent volatilization, reducing concrete shrinkage, and increasing concrete strength.

Inactive Publication Date: 2009-10-28
四川建设集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this curing agent are: single function, only water retention, poor effect on concrete reinforcement
[0004] Shrinkage reducing agent is an admixture to control and reduce concrete shrinkage. Although the use of existing concrete shrinkage re...

Method used

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  • Multifunctional cement concrete reducing and anti-cracking curing agent
  • Multifunctional cement concrete reducing and anti-cracking curing agent
  • Multifunctional cement concrete reducing and anti-cracking curing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The components and weight percentages of a multifunctional cement concrete shrinkage-reducing anti-crack curing agent are:

[0026] Shrink compound 40%

[0027] Permeate aid 5%

[0028] Film former 10%

[0029] Film former 2%

[0030] Water 43%

[0031] Among them: the shrinkage reducing compound is polyacrylate shrinkage reducing agent; the permeation aid is dimeric isobutylene maleate sodium salt; the film former is acrylic acid; the film former is dodecyl alcohol ester.

[0032] This curing agent is made by mixing and stirring the above components.

Embodiment 2

[0034] The components and weight percentages of a multifunctional cement concrete shrinkage-reducing anti-crack curing agent are:

[0035] Reduce compound by 50%

[0036] Permeate aid 3%

[0037] Film former 5%

[0038] Film-assisting substance 5%

[0039] Water 37%

[0040] Wherein: the shrinkage reducing compound is a polyacrylate shrinkage reducing agent; the permeation aid is 2-ethylhexanol polyoxyethylene ether (3) phosphate; the film-forming material is water glass; the film-forming material is styrene-butadiene latex.

Embodiment 3

[0042] The components and weight percentages of a multifunctional cement concrete shrinkage-reducing anti-crack curing agent are:

[0043] Shrink compound 45%

[0044] Permeate aid 5%

[0045] Film former 20%

[0046]Film former 3%

[0047] Water 27%

[0048] Among them: the shrinkage reducing compound is polyethylene glycol monomethyl ether acrylate; the permeation aid is 2-ethylhexanol polyoxyethylene ether (3) phosphate; the film-forming material is acrylic acid; the film-forming material is dodecyl alcohol ester .

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PUM

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Abstract

The invention provides a multifunctional cement concrete reducing and anti-cracking curing agent, relating to the functional curing agent and reducing agent in the cement concrete admixture. The multifunctional cement concrete reducing and anti-cracking curing agent is composed of reducing compound, penetrant aid, film forming material, film forming material aid and water. The multifunctional cement concrete reducing and anti-cracking curing agent has good reducing and anti-cracking function and obviously increases the early strength of the cement concrete and increases the late strength to some extent, less dosage, good economic return and prevents the compatibility problem with the other additive. The multifunctional cement concrete reducing and anti-cracking curing agent is widely used for pouring component of cement concrete, road-surface maintenance, wall maintenance, thin-walled member or the other work.

Description

technical field [0001] The invention belongs to the technical field of cement concrete, and relates to a functional curing agent and a shrinkage reducing agent of cement concrete admixtures. Background technique [0002] The shrinkage of concrete and the resulting cracking is a persistent problem of concrete engineering quality, and it is also a problem that has been concerned by the academic and engineering circles. The high-performance concrete (HPC) and high-strength concrete (HSC) developed in recent years are characterized by low water consumption, large cement consumption, and the addition of reactive admixtures, so early cementitious materials hydrate very quickly , leading to the rapid consumption of free water inside the concrete, and self-drying while the internal structure is dense, increasing the possibility of shrinkage and cracking of the concrete. The cracking of concrete can be controlled and reduced by strengthening curing and adding admixtures, among which...

Claims

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Application Information

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IPC IPC(8): C04B24/26C04B24/32
CPCC04B2103/58C04B40/0039
Inventor 匡全明王智郭朝友邢霄龙邓佩珍石亮刘国胜
Owner 四川建设集团有限公司
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