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

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...

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 foaming agents and protein foaming agents; surfactant foaming agents The foaming effect is good and the price is cheap, but the compatibility with cement and other gel materials is insufficient, the drainage speed is fast, and the foam stability is poor; protein foaming agents are mainly divided into plant protein foaming agents and animal protein foaming agents , the plant protein foaming agent has poor foaming stability and cannot be widely used, while the animal protein foaming agent has good foaming effect, but the price is too expensive, the construction cost is too high, and the application is limited

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