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Fabrication of unglazed floor tiles containing Iranian copper slags

Authors
Journal
Ceramics International
0272-8842
Publisher
Elsevier
Publication Date
Volume
25
Issue
7
Identifiers
DOI: 10.1016/s0272-8842(98)00075-3
Keywords
  • Unglazed Floor Tiles
  • Copper Slag

Abstract

Abstract Thermal behaviour of reverberatory furnace copper slag was investigated using simultaneous thermal analysis (STA), dilatometry and X-ray diffraction techniques. The results were used to study the effect of progressive addition of copper slag to a standard floor tile body formulation. It was observed that SO 2 emission at high temperatures resulted in bloating of the bodies, limiting the possibility of slag addition to a maximum of 40 wt%. The most promising body, containing 40 wt% copper slag, after firing at 1025°C for 1 h had a bend strength of 57 MN m −2, water absorption of 2 wt%, hardness of 750 HV and a very good acid resistance. ©

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