Foam concrete based on high-stability foaming agent and preparation method of foam concrete

A foam concrete and high stability technology, applied in the field of concrete additives, can solve the problems of poor foaming stability of vegetable protein foaming agents, inability to realize large-scale promotion and use, and insufficient compatibility of gel materials, etc., to achieve excellent heat insulation ability, excellent thermal stability, the effect of good thermal stability

Active Publication Date: 2021-01-29
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The physical blowing agent refers to the introduction of a large amount of air through mechanical action to generate a large amount of foam. The foam stability is good, but the foam output is insufficient and it is difficult to meet the actual needs; the chemical blowing agent is produced by releasing a large amount of gas through a chemical reaction. A lot of foam, high foam output, low price, simple process, but poor foam stability
[0004] With the continuous deepening of human research on foaming agents, foaming agents have gradually developed from unity to diversification, and gradually produced surfactant

Method used

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  • Foam concrete based on high-stability foaming agent and preparation method of foam concrete

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Experimental program
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Effect test

Embodiment 1

[0043] A foam concrete based on a high-stability foaming agent, the mass ratio of the modified foaming agent, cement slurry, and low-hardness tap water is 1:500:100; the modified halloysite, modified nanoparticles The mass ratio of the mixed solution and the anionic surfactant is 4:1:20.

[0044] The raw material components of the modified halloysite are as follows: in parts by weight, 60 parts of halloysite, 13 parts of sodium dodecanoate, 8 parts of cyclohexanone, 24 parts of methyl methacrylate, and 15 parts of graphene oxide , 8 parts of silane coupling agent, 8 parts of dibenzoyl peroxide, 15 parts of ferric oxide, 8 parts of hydrazine hydrate, and 22 parts of amphoteric surfactant.

[0045] The modified nanoparticle mixed liquid mainly includes modified auxiliary liquid and nanoparticles, and the mass ratio of the modified auxiliary liquid and nanoparticles is 3:1.

[0046] S1. Preparation of modified halloysite:

[0047] A. Preparation of halloysite airgel:

[0048] ...

Embodiment 2

[0059] A foam concrete based on a high-stability foaming agent, the mass ratio of the modified foaming agent, cement slurry, and low-hardness tap water is 1:500:(200); the modified halloysite, modified The mass ratio of the nanoparticle mixture solution and the anionic surfactant is 5:1:20.

[0060] The raw material components of the modified halloysite are as follows: in parts by weight, 65 parts of halloysite, 14 parts of sodium dodecanoate, 9 parts of cyclohexanone, 26 parts of methyl methacrylate, and 17 parts of graphene oxide , 11 parts of silane coupling agent, 12 parts of dibenzoyl peroxide, 20 parts of ferric oxide, 9 parts of hydrazine hydrate, and 24 parts of amphoteric surfactant.

[0061] The modified nanoparticle mixed liquid mainly includes modified auxiliary liquid and nanoparticles, and the mass ratio of the modified auxiliary liquid and nanoparticles is 4:1.

[0062] S1. Preparation of modified halloysite:

[0063] A. Preparation of halloysite airgel:

[0...

Embodiment 3

[0075] A foam concrete based on a high-stability foaming agent, the mass ratio of the modified foaming agent, cement slurry, and low-hardness tap water is 1:500:300; the modified halloysite, modified nanoparticles The mass ratio of the mixed solution and the anionic surfactant is 7:1:20.

[0076] The raw material components of the modified halloysite are as follows: in parts by weight, 70 parts of halloysite, 15 parts of sodium dodecanoate, 10 parts of cyclohexanone, 28 parts of methyl methacrylate, and 20 parts of graphene oxide , 14 parts of silane coupling agent, 14 parts of dibenzoyl peroxide, 25 parts of ferric oxide, 10 parts of hydrazine hydrate, and 28 parts of amphoteric surfactant.

[0077] The modified nanoparticle mixed liquid mainly includes modified auxiliary liquid and nanoparticles, and the mass ratio of the modified auxiliary liquid and nanoparticles is 5:1.

[0078] S1. Preparation of modified halloysite:

[0079] A. Preparation of halloysite airgel:

[00...

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Abstract

The invention discloses foam concrete based on a high-stability foaming agent and a preparation method of the foam concrete. The preparation method comprises the steps of firstly, constructing a halloysite aerogel three-dimensional network on halloysite through methyl methacrylate and graphene oxide, then loading ferroferric oxide on the halloysite aerogel, and grafting a large number of double-ion groups on the halloysite to obtain modified halloysite; putting the nano particles into the modified auxiliary liquid for reaction to obtain modified nano particles; and mixing the modified nanoparticles and the modified halloysite, and adding the mixture into an anionic surfactant for further reaction. The prepared modified foaming agent has high foaming capacity and foam stabilizing performance; and the concrete block prepared by mixing the modified foaming agent, the cement slurry and the low-hardness tap water has the characteristics of light weight, high compressive strength and good heat-insulating property, and is very practical.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a foamed concrete based on a high-stability foaming agent and a preparation method thereof. Background technique [0002] Foamed concrete is a lightweight thermal insulation material containing a large number of closed pores formed by fully foaming the foaming agent through the foaming system of the foaming machine to obtain a large amount of foam, mixing the foam with cement slurry, pouring, and natural curing. Compared with traditional concrete, foamed concrete is more waste-friendly, environmentally friendly, energy-saving, inexpensive, and non-combustible, and is very popular among people. The key to preparing foamed concrete is the selection of foaming agent. The foaming agent has poor foaming and foam stabilizing effects, and the performance of the prepared foamed concrete is also poor. [0003] Foaming agent is a kind of agent that can promote the generation of...

Claims

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Application Information

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IPC IPC(8): C04B38/10C04B28/00C04B111/40
CPCC04B28/00C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B22/00C04B24/008C04B24/16C04B24/045C04B22/02C04B22/06C04B24/12C04B2103/40C04B38/10C04B38/0067
Inventor 郭思瑶刘英
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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