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USAGE ALUMINIFEROUS WASTE IN THE PRODUCTION OF ALUMINATE CEMENTS

Samchenko, S.; Krivoborodov, Y.; Burlov, I.
Abstract:
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 ??.
SGEM Research areas:
Year:
2017
Type of Publication:
In Proceedings
Keywords:
aluminiferous waste; calcium aluminate cement (CAC); refractory castables; mineral composition; ??2 emission.
Volume:
17
SGEM Book title:
17th International Multidisciplinary Scientific GeoConference SGEM 2017
Book number:
62
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
465-472
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
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
Period:
29 June - 5 July, 2017
ISBN:
978-619-7408-13-3
ISSN:
1314-2704
Conference:
17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
DOI:
10.5593/sgem2017/62/S26.059
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