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Potential leachability from natural road construction materials
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
1999 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 239, no 1-3, p. 31-47Article in journal (Refereed) Published
Abstract [en]

Leaching characteristics are used for the evaluation of waste materials in road construction. Few leaching tests have been performed on natural rock materials which implies that there is a lack of data to be used in comparison with waste materials. In order to form a basis for comparison of the leachability, nine natural road construction materials in Sweden were investigated using the availability test NT ENVIR 003. The results show that the leachable amounts of heavy metals and sulphur generally are very small, but under oxidizing conditions the solubility of sulphide bound elements increases notably. Vanadium and chromium are probably present as ionic substitutes for other elements in mineral lattices and show very low leachability. The leachable amounts of some heavy elements, e.g. zinc, nickel and copper are higher in the rock materials and gravels than in the blast furnace slags.

Place, publisher, year, edition, pages
1999. Vol. 239, no 1-3, p. 31-47
National Category
Metallurgy and Metallic Materials
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-9050DOI: 10.1016/S0048-9697(99)00283-1ISI: 000083337200003Scopus ID: 2-s2.0-0032827621Local ID: 79c58dd0-c358-11db-9ea3-000ea68e967bOAI: oai:DiVA.org:ltu-9050DiVA, id: diva2:981988
Note
Godkänd; 1999; 20070124 (pafi)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Tossavainen, MiaForssberg, Eric

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