Method for preparing light high-strength fire-proof plate

Abstract

The invention provides a method for preparing a light high-strength fire-proof plate. The method comprises the following steps: (1), selecting a chemical exciting agent, and mixing the chemical exciting agent and coal ash residues to obtain a mixture of the chemical exciting agent and the coal ash residues; (2), adding natural or artificial inorganic light aggregate into the mixture to obtain a batch; and (3), adding water into the batch, fully stirring, adding the water and batch mixture into a template, pressing the template to form a plate by pressure, maintaining the plate in environmental temperature and manufacturing the light high-strength fire-proof plate with the density of 0.60g-1.60g/cm<3>, the compressive strength of 5.2MPa-15MPs and the thermal conductivity of 0.2-0.7W/m*K. The invention has the benefits that the coal ash residue resource can be fully utilized; the manufacture light high-strength fire-proof plate can play not only a heat-insulating fireproof role but also a decorative role, reduces the architectural ornament procedure and cost, and conforms to the energy-saving and low-carbon requirements on building; and the method is simple, the source of raw materials is wide, the cost is lower, and industrialized popularization and application are permitted.

Description

technical field [0001] The invention relates to the technical field of recycling aluminosilicate solid wastes, and relates to the comprehensive utilization of high added value of coal ash, in particular to a method for preparing a light-weight and high-strength fireproof board. Background technique [0002] Fireproof materials refer to construction or decoration materials with a certain level of fireproof performance, which can be divided into three types according to building standards: (1) Non-combustible materials: such as concrete, brick or hollow brick, tile, stone, steel, aluminum, glass, glass fiber, Mineral wool, ceramics, mortar, lime, and other materials that do not burn, melt, crack, deform, or produce harmful gases due to heat; (2) Fire-resistant boards: materials such as wood wool cement boards, fire-resistant gypsum boards, etc.; (3) Fire-resistant Materials: such as flame-resistant fiberboard, flame-resistant plastic board, gypsum board and other materials. ...

AI Technical Summary

Problems solved by technology

However, these building boards have the problems of large proportion and poor thermal insulation performance in terms of fire performance, low strength, poor fire protection performance, and potential safety hazards in terms of thermal insulation performance.

Although some of these technologies use solid waste to prepare building panels, these solid wastes are mainly used as fillers and do not stimulate the reactivity of the solid waste itself. Therefore, the quality of these building panels is generally unstable and lacks aesthetics.