The influence of clay fineness upon sludge recycling in a ceramic matrix

3rd International Conference on Competitive Materials and Technology Processes

Szke, A.M.^1 ; Muntean, M.^1 ; Sándor, M.^1 ; Brotea, L.^1

Babe-Bolyai University, Faculty of Environmental Science, Extension Sf. Gheorghe, Romania^1

关键词: Building ceramics;    Ceramic mass;    Ceramic properties;    Chemical and mineralogical compositions;    Green ceramic bodies;    Laboratory testing;    Open porosity;    Physical-mechanical properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/123/1/012043/pdf
DOI  :  10.1088/1757-899X/123/1/012043

来源: IOP

【 摘 要 】

The feasibility of sludge recycling in the ceramic manufacture was evaluated through laboratory testing. Such residues have similar chemical and mineralogical composition with the raw mixture of the green ceramic body used in construction. Several ceramic masses with clay and various proportion of sludge have been synthesized and then characterized by their physical-mechanical properties. The fineness of the clay, the main component of the green ceramic body, has been considered for every raw mixture. The proportion of the sludge waste addition depends on the clay fineness and the sintering capacity also, increases with the clay fineness. The ceramic properties, particularly, the open porosity, and mechanical properties, in presence of small sludge proportion (7, 20%) shows small modification. The introduction of such waste into building ceramic matrix (bricks, tiles, and plates) has a very good perspective.