Preparation method of compound enhanced waterproof and fireproof heat-insulating board slurry

Abstract

The invention provides compound enhanced waterproof and fireproof heat-insulating board slurry which is prepared through the following steps of: firstly, agitating raw materials comprising 650-800 kg of silicate cement, 160-250 kg of fly ash, 45-65 kg of saltpeter ash, 12-18 kg of re-dispersed latex powder, 1-3 kg of polypropylene fiber with the size of 6-8 mm, 2.5-3.5 kg of naphthalene-based superplasticizer, 1.5-2.5 kg of methyl cellulose ether and the like into uniformly-mixed dry powder; and uniformly agitating 140-200 kg of the dry powder with 10-15 kg of B1-grade inflaming retarding EPS (Expanded Polystyrene) grains and 100-150 kg of water to prepare the slurry. The weight contents of the B1-grade inflaming retarding EPS grains are as follows: the content of grains with the size of phi2 mm is 10-20%, the content of grains with the size of phi3 mm is 10-20%, the content of grains with the size of phi4 mm is 30-40% and the content of grains with the size of phi5 mm is 30-40%. A heat-insulating board prepared from the compound enhanced waterproof and fireproof heat-insulating board slurry disclosed by the invention has the characteristics of low heat conduction rate, low water absorption, A2-grade non-combustible and fireproof performance and the like.

Description

technical field [0001] The invention belongs to the technical field of external thermal insulation of building external walls, and in particular relates to a slurry for preparing composite reinforced waterproof and fireproof thermal insulation boards for external thermal insulation systems of building external walls by using cement and polystyrene (EPS) particles as main raw materials. Background technique [0002] It is well known in the industry that the energy consumption of buildings in my country accounts for nearly 30% of the total energy consumption in the country, and the proportion of high energy consumption buildings in the existing buildings in the country has exceeded 95%. It is of great significance to improve the energy utilization rate of buildings. The external thermal insulation board of the external wall is a building component applied to the external surface of the external wall and plays a role of thermal insulation for the building. Using EPS boards, XPS...

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Problems solved by technology

Using EPS boards, XPS boards, PU boards, etc. as external wall insulation components has the advantages of low price and good thermal insulation performance, but its flame retardancy index is low, and it cannot reach the A-level fire protection index, and building insulation fire accidents are prone to occur. Cause huge economic losses and seriously threaten the safety of people's lives and properties

At present, the commonly used A-level external wall fire-proof and thermal insulation materials in the market are mostly rock wool, glass fiber, and foamed cement. They may have defects such as excessive water absorption, excessive quality, easy detachment, fragility, low impact strength, and difficult installation. , and the production process is backward, the scale is small, and the production process is seriously polluted, so it is difficult to be widely used as external wall insulation materials

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