DBPapers
DOI: 10.5593/sgem2017/41/S18.017

MECHANICAL PROPERTIES OF STEEL SLAG COMPONENTS FROM INFRASTRUCTURE OF ROADS

C. Ianasi
Tuesday 12 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-06-5 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 41, 131-136 pp, DOI: 10.5593/sgem2017/41/S18.017

ABSTRACT

Construction, rehabilitation and maintenance of land communication use large quantities of material from processing plants (earth, natural aggregates including filler and binder). It is noted, however, that their diversity is limited. It is recommended to introduce and promote manufacturing technologies that have a low environmental impact. An artificial material used for road structure is the steel slag from steelworks. Ferrous metallurgical slag processing plant benefits in terms of environmental protection, in terms of agriculture and the community or technically: slag of ferrous metallurgy factory, being non-toxic materials, but with similar physical and mechanical properties of rocks are a viable alternative in some applications even more valuable than natural variations constructions. Steel slag is the main by-product ferrous metallurgy and reuse them make the most important economic and environmental benefits. Steel slag are by-products, essential processes for developing iron and steel, with a well-defined technological role. In this paper we consider the two aspects - ecological and economic, the solution founded for the processing of waste being based on conventional crushing and sorting processes. The crushing process of this kind of particles can be obtained through several methods. Indifferent of the used method for the crushing process, you need to act on the material so that in some of these places appear tensions exceed their breaking limit. Crushing method is chosen depending on the physical and mechanical properties of the material, its initial size, degree of crushing etc. In this paper it is presented the choice of an optimal technological flow for obtaining polyhedral shape on different grain fractions.

Keywords: polyhedral shape, slag, infrastructure, crushing and sorting processes

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