A composite foaming agent for cast-in-place foam concrete

A composite foaming agent and foam concrete technology, which is applied in the field of anionic-nonionic surfactant composite foaming agent for cast-in-place foam concrete, can solve the problems of expensive imported products, increase water carrying capacity and reduce foam loss , excellent foam stability

Active Publication Date: 2021-05-07
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of cast-in-place construction, currently mainly expensive imported products are still used

Method used

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  • A composite foaming agent for cast-in-place foam concrete
  • A composite foaming agent for cast-in-place foam concrete
  • A composite foaming agent for cast-in-place foam concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 12g of sodium fatty alcohol polyoxyethylene ether sulfate, 6g of lauryl alkyl glucoside, 2g of modified silicone resin polyether emulsion and 180g of water to obtain a composite blowing agent.

Embodiment 2

[0023] Mix 12g of sodium fatty alcohol polyoxyethylene ether sulfate, 6g of lauryl alkyl glucoside, 2g of modified silicone polyether emulsion, 0.5g of polyacrylamide and 200g of water to obtain a composite blowing agent.

Embodiment 3

[0025] Mix 12g sodium fatty alcohol polyoxyethylene ether sulfate, 6g lauryl alkyl glucoside, 2g modified silicone resin polyether emulsion, 0.5g hydroxypropyl methylcellulose and 200g water to obtain a composite blowing agent.

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Abstract

The invention discloses a composite foaming agent for cast-in-place foam concrete. The foaming agent is composed of: 2.0% to 8.0% of fatty alcohol polyoxyethylene ether sodium sulfate, 1.5% to 8.0% of alkyl glycoside, stable Foaming agent 0.5%~3.0%, thickening agent 0%~1.5%, water added to 100%, wherein the mass ratio of fatty alcohol polyoxyethylene ether sodium sulfate to alkyl glycoside is 1:4~4:1, to stabilize foam The agent is modified silicone resin polyether emulsion and / or polyvinylpyrrolidone, and the tackifier is hydroxypropyl methylcellulose and / or polyacrylamide. The foaming agent of the invention has fast foaming, large foaming volume, good foam stability and excellent performance without adding other additives to achieve a good use effect, and can be diluted 30-60 times for the preparation of cast-in-place foam concrete. The raw materials used in the foaming agent of the present invention have excellent biodegradability, safety and environmental protection, and the prepared foaming agent product is green and environment-friendly. In addition, the foaming agent of the present invention has a simple preparation process and mild conditions, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals and light inorganic materials, and in particular relates to an anionic-nonionic surfactant composite foaming agent for cast-in-place foam concrete. Background technique [0002] Foamed concrete is widely used in decorative materials, industrial fields and engineering fields because of its excellent energy saving, thermal insulation, sound insulation and noise reduction, and excellent shock absorption and kinetic energy absorption properties. At present, there are two main technologies for preparing foamed concrete. One is chemical foaming, that is, during the mixing process of concrete slurry, the foaming agent undergoes a chemical reaction to release gas, so that an appropriate amount of air holes are generated inside the concrete, and the reaction rate is utilized. The balance with the concrete hardening rate controls the distribution of foam to prepare foam concrete; the other is physica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B103/42
CPCC04B40/0039C04B2103/42C04B24/163C04B24/38C04B24/42C04B22/002C04B24/2652C04B24/383
Inventor 陈亚芍李晨阳王长号张冬梅张留俊裘友强向豪
Owner SHAANXI NORMAL UNIV
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