Passive house thermal insulation wallboard and preparation method thereof

Abstract

The invention discloses a passive house thermal insulation wallboard, which is prepared from the following raw materials in parts by weight: 50-70 parts of construction waste; 5-10 parts of furnace slag; 1-3 parts of talcum powder; 5-10 parts of glass cellulose; 3-5 parts of a foaming agent; 15-20 parts of river sand; 1-3 parts of hydroxyethyl cellulose; and 0.3-0.5 part of calcium lignosulphonate. The preparation method comprises the following steps: (1) weighing the raw materials; (2) putting the construction waste, the furnace slag, the talcum powder and the glass cellulose into a ball mill, and carrying out fine grinding; (3) adding the hydroxyethyl cellulose, the foaming agent and water, stirring in stirring equipment, and foaming; and (4) mixing the foaming slurry with the river sandand the calcium lignosulphonate, performing uniform stirring to obtain a mixture, putting the mixture into a mold, preparing a billet, and performing steam curing on the billet to obtain the finishedproduct thermal insulation wallboard. The product provided by the invention has the advantages of light weight, heat insulation, good flame retardant property and excellent water resistance, and particularly meets the application requirements of passive house buildings and indoor sound insulation, heat insulation, heat preservation and the like of civil buildings; and the manufacturing process issimple, low in cost and suitable for large-area production and popularization.

Description

technical field [0001] The invention relates to the technical field of passive house building materials, and more specifically relates to a passive house thermal insulation wallboard and a preparation method thereof. Background technique [0002] With the rapid development of the global economy, the problem of energy shortage has become increasingly prominent, and energy conservation has become a life concept advocated by various countries. In recent years, my country has put forward higher and higher requirements for energy conservation and environmental protection of new buildings. Therefore, the concept of passive houses has been proposed and has developed rapidly in recent years. [0003] Therefore, high requirements are put forward for the various functions of the materials of passive house buildings. Not only must they have the function of thermal insulation, but they must also have good sound insulation effects and high fire protection ratings. Traditional thermal in...

AI Technical Summary

Problems solved by technology

Traditional thermal insulation materials for buildings include cement vermiculite, cement perlite, overhead insulation boards and aerated concrete blocks. Although these thermal insulation materials can play a certain role in thermal insulation, they are expensive , moisture-proof, and poor waterproof performance, especially the aerated concrete blocks still have the problem of wasting land resources and energy

At present, it has become a trend to use waste foam plastics and cement as raw materials to make thermal insulation wallboards. Brick, its thermal insulation performance and waterproof and fireproof performance cannot meet the requirements of construction engineering for the performance of thermal insulation materials

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