Prefabricated panels and preparation method thereof

Abstract

The invention provides prefabricated panels, which comprise the following 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 prefabricated panels have high bearing capacity, good properties of heat preservation, heat insulation, fire prevention, sound insulation, leakage resistance and corrosion prevention, the explosion relief property, and the advantages of high processability, capability of being sawn, nailed, drilled, coated and bonded, no pollution and zero discharge; and the panels do not have steel frames, so a 'cold bridge' effect is avoided, and the higher requirement of the buildings can be met.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a prefabricated plate 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 as the times require, and scientific researchers and engineering technicians skillfully combine stress and thermal insulation , so produced cement expanded perlite board, autoclaved aerated concrete board; metal surface sandwich board; foam cement composite board; It is widely used in industrial construction, storage engineering and interlayer engineering of civil buildings. [0003] However, there are some shortcomings and deficiencies in existing materials, such as: there is a certain opposition between the load-bearing and thermal insulation of ceme...

AI Technical Summary

Problems solved by technology

[0003] However, there are some shortcomings and deficiencies in existing materials, such as: there is a certain opposition between the load-bearing and thermal insulation of cement expanded perlite slabs. Pressurized aerated concrete slabs have high density, high thermal conductivity, and low bearing capacity; metal sandwich panels have poor durability and low fire resistance limit; foamed cement composite panels have large foam bodies, and the cell walls are thin and brittle. Closed type, in the case of water, each bubble body will become a "water tank", and the safety of the component will be threatened; the steel frame light board must have an exposed steel frame, which is prone to "cold bridge" effect and easy to rust corrosion

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