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Trends of enrichment of free mica grains in crushed rock aggregates
Swedish Road Administration, Gothenburg.
2009 (English)In: Bulletin of Engineering Geology and the Environment, ISSN 1435-9529, E-ISSN 1435-9537, Vol. 68, no 1, p. 89-96Article in journal (Refereed) Published
Abstract [en]

The paper reports a study of the behaviour of free mica grains in crushed rock aggregates of metamorphic origin undertaken to identify any typical trends of enrichment with grain size. The mineralogical composition of the various grain size fractions was obtained using a polarizing microscope and point counting. Two general trends of enrichment of mica are presented: Type I (isotropic source rock) and Type A (anisotropic source rock). Type I is associated with a general increase in free mica towards the finer fraction, with or without a peak for "coarser" grain fractions. Type A is associated with an increase in free mica up to a certain grain fraction, after which there is a decrease with progressively smaller grain size.

Place, publisher, year, edition, pages
2009. Vol. 68, no 1, p. 89-96
Keywords [en]
Civil engineering and architecture - Geoengineering and mining engineering
Keywords [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-16227DOI: 10.1007/s10064-008-0181-yISI: 000263059900009Scopus ID: 2-s2.0-59749106099Local ID: fd5a7300-c774-11dd-941d-000ea68e967bOAI: oai:DiVA.org:ltu-16227DiVA, id: diva2:989203
Note
Validerad; 2009; 20081211 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Kondelchuk, Dimitri

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