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A kind of permeable cement concrete reinforcing agent and preparation method thereof

A technology of concrete reinforcing agent and permeable cement, which is applied in the field of permeable cement concrete reinforcing agent and its preparation. It can solve the problems of running grains on the road surface, poor water permeability, and inability to withstand high-strength loads, so as to improve the cohesive force, good construction performance, Guarantee the effect of connected porosity and construction uniformity

Active Publication Date: 2018-08-14
上海砼仁环保技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, permeable cement concrete has become more and more mature, but there are still some problems: 1. During the construction of permeable cement concrete, the slurry sinks, and the bonding force between cement and aggregate is not strong, resulting in poor water permeability and running grains on the road surface.
2. Due to the lack of fine aggregate filling and cement dosage control in pervious cement concrete, the strength of pervious cement concrete is not high and cannot withstand high-strength loads

Method used

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  • A kind of permeable cement concrete reinforcing agent and preparation method thereof
  • A kind of permeable cement concrete reinforcing agent and preparation method thereof
  • A kind of permeable cement concrete reinforcing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. The permeable cement concrete reinforcing agent is composed of the following components by weight:

[0041] 20.8% deionized water; 75% Japanese Showa AD-10 emulsion; 2% Kaiyuan chemical powder polyvinyl alcohol 2488; 1% sodium gluconate; 1% Sika polycarboxylate superplasticizer 325C; 0.2 % Dow Corning Dimethicone OFX-0193.

[0042] 2. Production method:

[0043] At a temperature of 25°C, add 20% deionized water into the production equipment according to the weight ratio, slowly add 75% Japanese Showa AD-10 emulsion under the stirring condition of 500 rpm, and stir for 15 minutes; then add 2% of Kaiyuan chemical powder polyvinyl alcohol 2488, stirred for 10 minutes; then added 1% sodium gluconate, stirred for 5 minutes; finally added 1% of Sika polycarboxylate superplasticizer 325C, 0.2% of Dow Corning Polymer Methylsiloxane OFX-0193, stirred and reacted at 25°C until the finished emulsion product is uniformly dispersed, free of bubbles and particles.

Embodiment 2

[0054] 1. The permeable cement concrete reinforcing agent is composed of the following components by weight:

[0055] 15.8% deionized water; 80% Japan Showa AD-10 emulsion; 2% Kaiyuan chemical powder polyvinyl alcohol 2488; 1% Dow TEA99 triethanolamine; 1% Sika polycarboxylate superplasticizer 325C 0.2% Dow Corning Dimethicone OFX-0193.

[0056] 2. production method is identical with embodiment 1 method.

Embodiment 3

[0062] 1. The permeable cement concrete reinforcing agent is composed of the following components by weight:

[0063] 11.8% deionized water; 85% Japanese Showa AD-10 emulsion; 2% Kaiyuan chemical powder polyvinyl alcohol 2488; 1% Sika polycarboxylate superplasticizer 325C; 0.2% Dow Corning polydimethyl Silicone OFX-0193.

[0064] 2. production method is identical with embodiment 1 method.

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Abstract

The invention provides a water-permeable cement concrete reinforcing agent which comprises the following components by total weight: 75-85% of EVA emulsion, 1.5-3% of a thickening agent, 0.1-0.3% of a defoaming agent, 0.5-1.3% of a water reduction agent and 10-30% of water, wherein the EVA emulsion is ethylene-vinyl acetate copolymer emulsion; the content of vinyl acetate is greater than or equal to 15%; the thickening agent is a hydrophilic high-molecular compound; the defoaming agent is an organic silicon compound. Due to adoption of the thickening agent, the dispersibility and the adhesion property of the cement can be improved, the water amount can be reduced, the strength and the properties of water retention, reinforcement, thickening and adhesion improvement of concrete at different stages can be improved, the cohesive force of water-permeableconcrete skeletons can be improved, good construction can be ensured, and the communication porosity of water-permeable cement concrete structure layers can be ensured.

Description

technical field [0001] The invention relates to the technical field of additives in road surface mixtures, and more specifically, to a permeable cement concrete reinforcing agent and a preparation method thereof. Background technique [0002] In recent years, the urban heat island effect has attracted more and more attention from the country, and urban construction has paid more and more attention to environmental protection and ecology. Following this, permeable cement concrete pavements are also widely used in various non-motor vehicle lanes, square roads, and landscape roads. Nowadays, permeable cement concrete has become more and more mature, but there are still some problems: 1. During the construction of permeable cement concrete, the slurry sinks, and the bonding force between cement and aggregate is not strong, resulting in poor water permeability and running grains on the road surface. 2. Due to the lack of fine aggregate filling and cement dosage control in perviou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B28/04
CPCC04B28/04C04B40/0039C04B2111/00284C04B2201/50C04B24/2623C04B24/42C04B22/002C04B24/24C04B24/04C04B24/122C04B14/14
Inventor 汪玉莲钱卫胜周亚军孙刚王文华殷明伟盛佳杰
Owner 上海砼仁环保技术发展有限公司
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