Preparation method of metal hollow sphere cement-based composite material

Abstract

The invention provides a preparation method of a metal hollow sphere cement-based composite material. The preparation method comprises the following steps: step 1, preparing a matrix of the metal hollow sphere cement-based composite material; the preparation method comprises the following steps: preparing a matrix according to the following mixing ratio: preparing water, cement, sand, fly ash, silica fume, a water reducing agent, a thickening agent and a defoaming agent in a mass ratio of 160: 397.5: 650: 106: 2.65: 0.16, adding dry materials of the cement, the sand, the fly ash, the silica fume and the thickening agent into a stirrer, stirring for 3 minutes, adding a mixture of the water reducing agent, the defoaming agent and the water into the stirrer, and stirring for 5 minutes; the matrix of the metal hollow sphere cement-based composite material can be prepared. The novel material is prepared by compounding the cement mortar serving as a carrier and the metal hollow spheres, and the limitation that only polymers such as epoxy resin are adopted is broken through. And the material is cast in situ for use, has the same advantages as concrete, is good in modelability, can be cured under natural conditions, and is simple and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a method for preparing a metal hollow sphere cement-based composite material. Background technique [0002] Because of its special pore structure, metal foam materials have a series of excellent properties such as light weight, high strength, impact resistance, vibration reduction, heat insulation, and radiation shielding. They are widely used in aerospace, ships, vehicle manufacturing and nuclear industries. Industry and other related fields. Most of the existing metal foams are composed of open cells and closed cells, and the pore size and distribution uniformity are difficult to control, which leads to great uncertainty in the performance of metal foams. [0003] Existing studies have shown that the performance of metal foam materials depends on the porous structure inside the material. The emergence of metal hollow sphere composites can effectively so...

AI Technical Summary

Problems solved by technology

[0004]However, for anti-collision structures, industrial and civil construction and other fields, metal hollow ball materials are not economical enough

However, there are few reports on the composite of metal hollow spheres and cement mortar as a new type of metal hollow sphere cement-based composite material.

Images