Способ получения автоклавных строительных материалов на основе промышленных отходов

Abstract

The production method of autoclave building materials using the industrial waste was developed. The physical and chemical properties of the used wastes were studied and the technology of autoclave building materials obtainment was developed on their basis. As a binder was used cement dust which is formed in large quantities during the production of cement and pollutes the environment. The research results on the development of autoclave building materials compositions based on sediment obtained by wet trapping of cement dust and dust captured by electrostatic precipitators are presented. In order to replace quartz sand, the amount of which is drastically reducing in the world, the waste products containing of SiO₂ were used: cement dust, dust obtained by wet trapping and additive in the form of waste concrete. The compression strength of the resulting product after 28 days of hardening in air was 25 MPa, water absorption - 13%.