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Plastic concrete water evaporation inhibitor and preparation method thereof

An evaporation inhibitor, plastic concrete technology, applied in the field of concrete, to achieve the effect of reducing water evaporation

Active Publication Date: 2010-08-18
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, almost all researches on concrete curing technology and curing products in China are carried out on the surface after the initial setting of concrete, and the early-age surface curing technology and products involving concrete in a plastic state are still in a blank state.

Method used

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  • Plastic concrete water evaporation inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Amphiphilic compound: 0.1g stearyl alcohol (0.1% by weight), nonionic surfactant: 0.15g polyoxyethylene lauryl ether (0.15% by weight), anionic surfactant: 0.5g sodium oleate (weight percent % 0.5%), thickener: 0.1g polyacrylamide (0.1% by weight), add water to 100g, uniformly stir at 60°C for 30 minutes, and discharge. The prepared emulsion is diluted 10 times and sprayed on the surface of plastic concrete, which can reduce 32% of water evaporation.

Embodiment 2

[0018] Amphiphilic compound: 5g stearyl alcohol (5% by weight) and 0.6g tetradecyl alcohol (0.6% by weight), nonionic surfactant: 10g polyoxyethylene alkylphenol ether (10% by weight), Anionic surfactant: 4g sodium oleate (4% by weight), thickener: 3g polyacrylamide (3% by weight), add water to 100g, uniformly stir at 50°C for 30 minutes, and discharge. The prepared emulsion is diluted 10 times and sprayed on the surface of plastic concrete, which can reduce 62% of water evaporation.

Embodiment 3

[0020] Amphiphilic compound: 10g hexadecanic acid (10% by weight), nonionic surfactant: 4g polyoxyethylene alkylphenol ether (4% by weight), anionic surfactant: 2g dodecylsulfonic acid Sodium (2% by weight), thickener: 9g polyethylene glycol (9% by weight), add water to 100g, uniformly stir at 90°C for 30 minutes, and discharge. The prepared emulsion is diluted 10 times and sprayed on the surface of plastic concrete, which can reduce the evaporation of water by 50%.

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Abstract

The invention discloses a plastic concrete water evaporation inhibitor and a preparation method thereof, wherein the plastic concrete water evaporation inhibitor is prepared from the following components in proportion by weight: 0.1 to 10 percent of amphipathic compound, 0.2 to 10 percent of nonionic surfactant, 0.2 to 10 percent of anionic surfactant, 0.1 to 10 percent of thickening agent, 0 to 20 percent of auxiliary emulsifying agent and the balance of water. In the invention, a water emulsion system is prepared by utilizing the amphipathic compound under the actions of anionic and nonionic emulsifying agents, the emulsion system can effectively inhabit the water evaporation of a plastic concrete surface, and the highest inhabiting efficiency can reach 80 percent. The invention has the advantages of simple preparation process, stable performance, convenient field use and the like.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a water evaporation inhibitor for plastic concrete containing an amphiphilic compound and a preparation method thereof. Background technique [0002] Concrete curing is an important part of concrete construction. Traditional concrete curing begins after the initial setting of concrete, mainly including: (1) covering curing; (2) watering curing; (3) curing agent curing. Although these curing techniques can stop the evaporation of moisture in the concrete, reduce the cracking and improve the strength of the concrete. However, in the actual construction process of concrete, it is often encountered that the concrete surface dries quickly, such as plateau concrete, or under high ambient temperature, low humidity, high wind speed, direct sunlight, etc., the evaporation rate of water on the concrete surface is higher than that of the concrete. The speed of water causes a large negative pressure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24
Inventor 刘加平李磊缪昌文田倩冉千平王育江
Owner JIANGSU SOBUTE NEW MATERIALS
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