Preparation method of desulfurized gypsum foaming cement warming plate

Abstract

The invention discloses a preparation method of a desulfurized gypsum foaming cement warming plate. The desulfurized gypsum foaming cement warming plate comprises 150-180kg of ordinary portland cement, 50-80kg of fly ash, 5-10kg of desulfurized gypsum, 0.4-0.8kg of a water reducer, 0.5-1.0kg of polypropylene fibers, 13.0-18.0kg of a foaming agent, 0.75-1.0kg of a composite foam stabilizer and 80-120kg of water. The preparation method of the desulfurized gypsum foaming cement warming plate comprises the following steps of 1, well mixing weighed powdered materials according to a formula by adding ordinary portland cement, fly ash, desulfurized gypsum, the water reducer, polypropylene fibers and the foam stabilizer into a mixer and carrying out stirring to obtain a uniform mixture, and 2, adding water into the mixture, carrying out stirring for 2-3min, adding the foaming agent into the mixture, carrying out fast stirring for 5-10s, immediately pouring the mixture into a mold, carrying out foaming and maintenance, carrying out demolding, carrying out cutting, and maintaining the finished product. The desulfurized gypsum foaming cement warming plate has good compressive strength and a low heat conduction coefficient. The preparation method has simple processes. The desulfurized gypsum foaming cement warming plate has a low investment cost, environmental friendliness and a low cost.

Description

technical field [0001] The invention relates to a preparation method of a desulfurized gypsum foamed cement insulation board, belonging to the technical field of inorganic chemicals. Background technique [0002] The main reason why my country's building energy consumption is huge is that the heat transfer coefficient of the building maintenance structure is too large and the thermal insulation is poor. It is imperative to develop new wall insulation materials. The insulation materials used in traditional wall insulation systems in my country are generally organic materials such as expanded polystyrene (EPS) or extruded polystyrene (XPS), but these materials have exposed more and more during long-term use. Problems such as flammability, easy aging and falling off, complicated maintenance and replacement, etc., especially several major fire accidents caused by them in recent years, have caused a large number of casualties and property losses to the country and society, and h...

AI Technical Summary

Problems solved by technology

[0003] The early strength of foamed cement insulation board is low, and the quick-drying early strength agent or quick-setting agent used to improve the early strength of foamed cement insulation board is sulphoaluminate Cement or iron-aluminate cement; however, the price of sulphoaluminate cement or iron-aluminate cement is high, resources are scarce, and it will affect the later stage of foamed cement insulation board