Normal-temperature foaming wall/ roofing sandwich layer of vegetive bits enhanced cement and its production

Abstract

A foaming wall / roof sandwich layer of vegetable chip reinforced cement at normal temperature and its production are disclosed. The raw materials consist of vegetable chip 6-20 wt%, cement 46-62 wt%, gypsum powder 1.0-2.5 wt% with fineness 40-80 meshes, CaO 10-15 wt%, calcium chloride 0-3 wt%, foaming pearlite 10-14 wt%, water glass 4.5-6 wt%, sodium fluoro silicate 0.8-1.2 wt%, aluminum powder ordegreased aluminum powder or aluminum paste 0.15-0.35 wt%. Cavity filling rate reaches above 90%, it's firm, has better strength and rigidity, excellent thermal-insulating performance and various rawresources and less consumption.

Description

(1) Technical field [0001] The invention relates to a plant debris reinforced cement room temperature foam wall / roof core layer and a preparation method thereof, which belongs to a building material meeting the third energy-saving standard and a preparation method thereof. (2) Background technology [0002] The country puts forward higher requirements for building energy conservation, that is, in 1981, the building code stipulates that every M in a heating season 2 On the basis of burning 25Kg of standard coal as 100%, the heating coal consumption can be saved by 65%, that is, every M in a coal mining season 2 Burning standard coal reduced to 8.5Kg is the third energy-saving standard, and the third energy-saving standard is currently being implemented. If the standard cannot be met, the construction industry currently has to make the outer wall into a composite wall panel (body), that is, the outer side of the outer wall is made of benzene (foaming) board or polyurethane (f...

AI Technical Summary

Problems solved by technology

However, polystyrene boards (or polyurethane boards) are expensive, and the usual life expectancy is 10 years to repair and 20 years to overhaul or replace, that is, during the service life of the house for 50-100 years, the wall needs to replace the insulation board many times! What's more serious is that the raw material of polystyrene board is crude oil, about 2 tons of crude oil can produce 1 ton of polystyrene board, and the raw material of isocyanate, the raw material of polyurethane board, is also crude oil. , but crude oil is consumed, so the social terminal energy is not energy-saving

Though grass mud core layer (the patent that the inventor is applying for, afraid of water) and straw board (fear of fire and rot) etc. have occurred for solving this problem, those technologies are not suitable for roofing and multi-layer, high-rise building walls, and have developed The foam technology adopts high temperature foaming or high temperature and high pressure foaming. On the one hand, the cost is high, and it cannot be produced on site, and it cannot be tightly combined with the frame to fill the cavity.