Non-burnt straw and sludge composite self-insulation material and preparation method thereof

Abstract

The invention discloses a non-burnt straw and sludge composite self-insulation material and a preparation method thereof. The non-burnt straw and sludge composite self-insulation material is a novel lightweight building self-insulation materia which is prepared by mixing sludge in rivers, lakes and pools, industrial waste residues, farmland straws, lime and water through an alkali stimulation technology under the steam curing action. The non-burnt straw and sludge composite self-insulation material comprises the following components in percentage by mass: 8.2-57.1% of sludge, 0.5-61.5% of industrial waste residues, 0.1-4.1% of farmland straws, 4.1-22.4% of lime, and 17.7-36.0% of water. The main raw materials, such as the sludge, the industrial waste residues and the farmland straws used for preparing the non-burnt straw and sludge composite self-insulation material disclosed by the invention are all wastes. The non-burnt straw and sludge composite self-insulation material has the advantages of wide raw material source, low-temperature preparation, low cost, convenience for preparation and processing, good thermal insulation performance and high mechanical strength. Simultaneously, the non-burnt straw and sludge composite self-insulation material has the outstanding characteristics of utilizing wastes, protecting environment, regenerating, saving energy and the like. The application and development prospects of the non-burnt straw and sludge composite self-insulation material are very wide.

Description

technical field [0001] The invention relates to a fire-free building self-insulation material prepared by utilizing waste such as silt, industrial waste residue, and farmland straw. Specifically, a new type of non-burning self-insulating material prepared by using the sludge waste obtained from the dredging of rivers, lakes, ponds and dams in rural areas, industrial waste residues such as straw fibers, fly ash and slag, through the alkaline excitation of lime, involves Building envelope. It is mainly used in the field of building energy saving. Background technique [0002] In the vast rural areas of our country, the area of ​​rivers, lakes, ponds and dams is about 9000km 2 . In recent years, with the increasing degree of urban and rural water environment governance in my country, the amount of dredging of rivers, lakes, ponds and dams is very large every year, and the treatment and recycling of sludge is a key link in water environment governance. At the same time, bill...

AI Technical Summary

Problems solved by technology

If no energy-saving renovation or energy-saving measures are adopted, these high-energy-consuming buildings will consume a large amount of precious and scarce energy in our country, and at the same time seriously pollute the environment