Compressive anti-cracking light heat-insulation brick

Abstract

The invention relates to the technical field of refractory heat-insulation materials, in particular to a compressive anti-cracking light heat-insulation brick. The compressive anti-cracking light heat-insulation brick comprises ceramic waste mud, fly ash, clay powder, calcined kaolin, floating beads, reinforced fibers, foaming agents, magnesium fluoride, alpha-aluminum oxide and water. The compressive anti-cracking light heat-insulation brick has the advantages that the reinforced fibers are ceramic fiber materials prepared by the aid of electrostatic spinning and high-temperature calcinationtechnologies, the ceramic fiber materials are good in refractoriness and strength, roughening treatment is carried out on the surfaces of the ceramic fibers, silicon carbide whiskers are solidified onthe surfaces of the ceramic fibers, accordingly, good bonding effects can be realized between the ceramic fiber materials and main aggregate of the compressive anti-cracking light heat-insulation brick, and the compressive strength and the anti-cracking ability of the compressive anti-cracking light heat-insulation brick can be obviously enhanced.

Description

technical field [0001] The invention relates to the technical field of fire-resistant and heat-insulating materials, in particular to a pressure-resistant and crack-resistant lightweight heat-insulating brick. Background technique [0002] Insulation brick is a new type of building material, most of which are processed from cinder and slag. It is mainly used for wall filling of buildings, and has the advantages of light weight, convenient construction and good thermal insulation effect. It is the main wall material of modern buildings. Today's buildings mainly rely on external wall insulation engineering to improve the thermal insulation performance of the building, and the materials used in the construction of external wall insulation engineering are mainly insulation boards. This material can significantly improve the energy-saving and environmental protection performance of buildings. The use of building insulation boards has a long history in foreign countries. Soft por...

AI Technical Summary

Problems solved by technology

The thermal insulation project of high-temperature thermal kiln not only requires thermal insulation bricks to have good thermal insulation performance and high strength, but also requires high refractoriness of the brick body, because the kiln wall temperature of high-temperature thermal kiln is very high, if the thermal insulation bricks have insufficient refractoriness, in During use, the brick body is prone to decrease in strength, pulverization and deterioration, and loss of use value due to long-term high temperature.

[0004] Increasing the use of refractory aggregates in insulation bricks can improve the refractoriness of insulation bricks, but the density of refractory aggregates is generally higher, which will increase the mass of insulation bricks

Another performance that limits the application of thermal insulation bricks is the strength of the brick body. In order to improve the pressure resistance of the brick body and the shock resistance and crack resistance under high temperature conditions, fiber materials can be added to the brick body material, but conventional glass fiber and ceramics The compatibility between the fiber and the aggregate of the brick body is poor, the surface of the fiber is relatively smooth, and the combination with the aggregate is poor, so the improvement of the strength of the refractory insulation brick is limited