Self-heat preservation building block produced by using industrial byproduct gypsum and preparation method thereof

Abstract

The invention discloses a self-heat preservation building block produced by using industrial byproduct gypsum and a preparation method thereof. The preparation method comprises the following steps of: preparing 43-46 parts by weight of industrial byproduct gypsum, 14-16 parts by weight of steel slag, 4-6 parts by weight of kaolin, 0.30-0.40 parts by weight of micro mineral powder, 18-22 parts by weight of cement and 4-6 parts by weight of volcanic ash excitant, finely grinding into to 200 meshes through a Raymond mill, then adding 4.0-5.0 parts by weight of hydrogen peroxide, 3-6 parts by weight of hydroxypropyl methyl cellulose, 2-4 parts by weight of heat stabilizer and 35-45 parts by weight of 40-45 DEG C warm water, stirring and mixing, pouring into a mold, carrying out wet maintenance for 3-4 hours after molding, and carrying out normal temperature maintenance for 10-15 days. The preparation method has the advantages that a conventional method for producing light-weight thermal mortar by taking cement as a main raw material and adding materials such as pulverized fuel ash and slag is broken through, gypsum serves as a bran-new binding material to be applied to the mortar, a production technology is simplified due to adoption of a calcination-free technology, and the shortcomings of high investment, high cost, energy dissipation and pollution existing in a conventional calcination technology are overcome.

Description

[0001] technical field [0002] The invention relates to a self-insulating block produced by utilizing industrial by-product gypsum and a preparation method thereof. Background technique [0003] In order to meet the requirements of thermal insulation and building envelope, solve the safety and durability of the envelope structure insulation, maintain the same service life as the building, and save the project cost. Our company decided to develop a new type of self-insulating wall material to meet the national policy and the actual needs of construction projects. The technology of using industrial by-product gypsum to produce self-insulating blocks has a better thermal insulation effect than traditional blocks. The industrial by-product gypsum is used as the main cementing material. This low-carbon, green product can increase the rate of replacing cement; it is also a contribution to energy conservation, emission reduction, sustainable development, and circular economy. [...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the processing of industrial by-product gypsum basically adopts the calcination process to produce building materials, resulting in secondary energy consumption and secondary pollution problems