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Free mica grains in crushed rock aggregates
VTI - Statens väg-och transportforskningsinstitut.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
VTI - Statens väg-och transportforskningsinstitut.
2007 (English)In: Bulletin of Engineering Geology and the Environment, ISSN 1435-9529, E-ISSN 1435-9537, Vol. 66, no 4, 441-447 p.Article in journal (Refereed) Published
Abstract [en]

Enrichment of free mica (i.e. as monomineralic grains) in the fine fraction of crushed rock aggregates affects the quality of the aggregate end product. Granitoid rock from the Svecofennian Province were used as being representative of crushed rock aggregates commonly used for construction purposes. The results reveal a general trend of enrichment of mica for finer fractions. For the coarse grained rock a peak occurs at 0.25-0.5 mm followed by a decrease in the amount of free mica; for grains <0.063 mm there is an increase. The general trend and peak are correlated to the microstructural characteristics of the samples.

Place, publisher, year, edition, pages
2007. Vol. 66, no 4, 441-447 p.
Research subject
Soil Mechanics
URN: urn:nbn:se:ltu:diva-9581DOI: 10.1007/s10064-007-0091-4Local ID: 83a611e0-6c4e-11dc-89fb-000ea68e967bOAI: diva2:982519
Validerad; 2007; 20070926 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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Johansson, Eva
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