Composite foaming agent for cast-in-place foam concrete

Abstract

The invention discloses a composite foaming agent for cast-in-place foam concrete. The foaming agent is prepared from, by mass, 2.0%-8.0% of fatty alcohol polyoxyethylene lauryl ether sodium sulfate,1.5%-8.0% of alkyl glycoside, 0.5%-3.0% of a foam stabilizer, 0%-1.5% of a tackifier and the balance water, wherein the total mass percentage is 100%, a mass ratio of fatty alcohol polyoxyethylene lauryl ether sodium sulfate to alkyl glycoside is 1:4-4:1, the foam stabilizer refers to modified silicon resin polyether emulsion and/or polyvinylpyrrolidone, and the tackifier refers to hydroxypropyl methyl cellulose and/or polyacrylamide. The foaming agent is fast in foaming, high in foaming quantity, great in foam stability, excellent in performance, great utilization effects can be achieved without adding of other auxiliary agents, and the foaming agent can be diluted by 30-60 times to be used for preparation of cast-in-place foam concrete. Raw materials of the foaming agent are excellent inbiodegradability, safe and environmentally friendly, and the prepared foaming agent is green and environmentally friendly. In addition, a preparation process of the foaming agent is simple, mild in condition and applicable to 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...

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Problems solved by technology

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

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