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Title: USAGE ALUMINIFEROUS WASTE IN THE PRODUCTION OF ALUMINATE CEMENTS
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USAGE ALUMINIFEROUS WASTE IN THE PRODUCTION OF ALUMINATE CEMENTS
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1314-2704
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English
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17
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62
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The possibility and practicability of usage aluminiferous waste in the production of aluminate cements were studied. Aluminothermic slag, calcareous component and alumina in row stock was correlated for different compositions of aluminate clinkers. Clinkers were making by electric-arc melting at temperature 1600 ??. There was found a difference in mineral composition under conditions fast and slow cooling aluminate melts. In case of fast cooling main phase was calcium bialuminate and high glass-like phase content. In other side, clear crystallization of all minerals calcium monoaluminate and calcium bialuminate, magnesia spinel was observed, and the main phase was calcium monoaluminate. It has designed a composition of concrete, having high heat-resistant properties: strength on condition of normal hardening 40-50 MPa, residual strength after heating ? 60% from initial, low shrinkage ? 0,2-0,3%, heat resistance 30 cycles, refractoriness 1830 ??.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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465-472
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29 June - 5 July, 2017
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website
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cdrom
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4564
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aluminiferous waste; calcium aluminate cement (CAC); refractory castables; mineral composition; ??2 emission.
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