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  • Evaluation of the process parameters of ceramic produced from clay and C&DW [Elektronski vir]
    Angjusheva, Biljana ...
    Construction and demolition waste (C&DW) produced in Republic of North Macedonia presents a major economic and environmental problem, because all C&DW ends up in the local dumps or is disposed of in ... landfill. The aim of this research, was the determination of the physical and chemical properties of C&DW obtained at Macedonian demolition sites and further to investigate the possibility of waste bricks from this C&DW for the production of clay based ceramics by optimization of the main process parameters. Determination of the chemical composition of the waste demolition brick by means of X-ray fluorescence showed that it consisted of different oxides such as SiO2, Al2O3, Fe2O3 and CaO and minor contents of alkaline and earth alkaline oxides. SEM analysis was applied for investigation of the morphology of the particles. Specific weight and particle size distribution were obtained and discussed. Production of the ceramics were conducted through consolidation of the clay and waste demolition brick with evaluation of the main process parameters such as: sintering temperature (ST), content of waste demolition brick (WDB) and isothermal period at the final temperature (IP). The porosity and bending strength of the clay based compacts were the response function. The optimization was performed through implementation of main effect plots, Pareto charts and 3D surface method using %Statgraphics Centurion% software package. The final model equations for porosity and bending strength dependence of the main process parameters have been obtained and are presented. Microstructure of the ceramics determined by SEM was also reported and discussed.
    Vir: Book of abstracts [Elektronski vir] (Str. 161)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2019
    Jezik - angleški
    COBISS.SI-ID - 2489191

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