Preparation method of desulfurized gypsum foaming cement warming plate
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A technology of desulfurized gypsum and foamed cement, applied in ceramic products, sustainable waste treatment, solid waste management, etc., to achieve the effects of good fire safety, good compressive strength and simple process
Inactive Publication Date: 2014-11-19
INST OF APPLIED CHEM JIANGXI ACAD OF SCI
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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
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Embodiment 1
[0017] Weigh 150kg of ordinary Portland cement, 80kg of fly ash, 5kg of desulfurized gypsum, 0.4kg of water reducer, 0.6kg of polypropylene fiber, 13.0kg of foaming agent, and 0.8kg of composite foam stabilizer. The steps of the production method are as follows: uniformly mixing powder materials: after starting the mixer, adding ordinary Portland cement, fly ash, desulfurized gypsum, water reducing agent, polypropylene fiber and foam stabilizer, and stirring evenly. Add water and stir for 2 to 3 minutes, add foaming agent and stir quickly for 5 to 10 seconds, and immediately foam in the injection mold, curing, demoulding, cutting, and curing of the finished product.
Embodiment 2
[0019] Weigh 170kg of ordinary Portland cement, 70kg of fly ash, 7kg of desulfurized gypsum, 0.6kg of water reducer, 0.8kg of polypropylene fiber, 15.0kg of foaming agent, and 1.0kg of composite foam stabilizer. The steps of the production method are as follows: uniformly mixing powder materials: after starting the mixer, adding ordinary Portland cement, fly ash, desulfurized gypsum, water reducing agent, polypropylene fiber and foam stabilizer, and stirring evenly. Add water and stir for 2 to 3 minutes, add foaming agent and stir quickly for 5 to 10 seconds, and immediately foam in the injection mold, curing, demoulding, cutting, and curing of the finished product.
Embodiment 3
[0021] Weigh 180kg of ordinary Portland cement, 60kg of fly ash, 8kg of desulfurized gypsum, 0.8kg of water reducer, 1.0kg of polypropylene fiber, 16.0kg of foaming agent, and 1.2kg of composite foam stabilizer. The steps of the production method are as follows: uniformly mixing powder materials: after starting the mixer, adding ordinary Portland cement, fly ash, desulfurized gypsum, water reducing agent, polypropylene fiber and foam stabilizer, and stirring evenly. Add water and stir for 2 to 3 minutes, add foaming agent and stir quickly for 5 to 10 seconds, and immediately foam in the injection mold, curing, demoulding, cutting, and curing of the finished product.
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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...
Claims
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Application Information
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