Building material and preparation method thereof

Abstract

The invention provides a building material, which comprises the following preparation raw materials of: cement, coal ash, an aggregate of a heat-insulating material, a stone-forming agent and water, wherein a mass ratio of the cement to the coal ash is (2.0-3.5):1.0, a mass ratio of the water to the cement and the coal ash is (1.0-1.2):1.0, and a mass ratio of the cement and the coal ash to the aggregate of the heat-insulating material is (2.0-3.0):1.0; the stone-forming agent is a polymer and comprises the following components of: alkane sulfonate, dodecanol, starch, cellulose sodium, gypsum and sodium sulfate, and a mass ratio of the cement and the coal ash to the stone-forming agent is 1.0:(0.03-0.05). The building material has high bearing capacity and explosion relief performance, has the characteristics of high processability, capability of being sawn, nailed, planed, drilled, coated and bonded, no pollution, zero discharge and the like, has good effects of heat preservation, heat insulation, fire prevention, sound insulation, leakage resistance and corrosion prevention when coated on surfaces of buildings or equipment, and can meet the higher requirement of the buildings.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a building material and a preparation method thereof. Background technique [0002] With the increasing requirements for various thermal insulation and energy saving, various new materials such as inorganic thermal insulation materials, organic thermal insulation materials and composite thermal insulation materials have emerged at the historic moment, among which cement expanded perlite is an ideal material, which is suitable for various Insulation and heat insulation of roofs, walls and basements of industrial buildings and civil buildings; waterproof, heat insulation and heat preservation of various cold insulation projects; various industrial equipment and pipeline insulation layers. [0003] Cement expanded perlite is completely made of concrete. It is mixed with cement and expanded perlite in a certain proportion and then mixed with water to form a uniform slurry. It can be...

AI Technical Summary

Problems solved by technology

[0005] Mixing expanded perlite with cement can increase the load-bearing capacity of expanded perlite, but it will affect the thermal insulation performance. For cement expanded perlite materials, there is a certain opposition between load-bearing and thermal insulation. The higher the load-bearing capacity, the lower the thermal insulation performance of the material ; The higher the thermal insulation performance, the lower the load-bearing capacity, the lower the strength of the material, and it is difficult to grasp the balance point