Analyzing the Technology of Using Ash and Slag Waste from Thermal Power Plants in the Production of Building Ceramics

International Scientific and Practical Conference on Urgent Problems of Modern Mechanical Engineering

机械制造;材料科学

Malchik, A.G.^1 ; Litovkin, S.V.^1 ; Rodionov, P.V.^1 ; Kozik, V.V.^1,2 ; Gaydamak, M.A.^1

Yurga Institute of Technology, National Research Tomsk Polytechnic University Affiliate, ul. Leningradskaya 26, Yurga

652050, Russia^1

National Research Tomsk State University, pr. Lenina 36, Tomsk

634050, Russia^2

关键词: Building ceramics;    Chemical compositions;    Compression strength;    Future prospects;    Optimal parameter;    Physical and mechanical properties;    Slag wastes;    Thermal power plants;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/127/1/012024/pdf
DOI  :  10.1088/1757-899X/127/1/012024

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The work describes the problem of impounding and storing ash and slag waste at coal thermal power plants in Russia. Recovery and recycling of ash and slag waste are analyzed. Activity of radionuclides, the chemical composition and particle sizes of ash and slag waste were determined; the acidity index, the basicity and the class of material were defined. The technology for making ceramic products with the addition of ash and slag waste was proposed. The dependencies relative to the percentage of ash and slag waste and the optimal parameters for baking were established. The obtained materials were tested for physical and mechanical properties, namely for water absorption, thermal conductivity and compression strength. Based on the findings, future prospects for use of ash and slag waste were identified.