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Influence of the mi...
Influence of the mineralogical composition and textural properties on the quality of coarse aggregates
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- Miskovsky, Karel (author)
- Luleå tekniska universitet,Institutionen för samhällsbyggnad och naturresurser
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- Duarte, M. Taborda (author)
- Luleå tekniska universitet
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- Kou, Shaoquan (author)
- Luleå tekniska universitet
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- Lindqvist, Per-Arne (author)
- Luleå tekniska universitet
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2004
- 2004
- English.
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In: Journal of materials engineering and performance (Print). - : Springer Science and Business Media LLC. - 1059-9495 .- 1544-1024 .- 0000-0000. ; 13:2, s. 144-150
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- To evaluate the influence of the petrographic variables on the quality of coarse aggregates consisting of granitoid (granite to tonalite) rocks, 17 samples selected from the Swedish part of the Baltic shield have been studied concerning their petrographic properties, for example, mineral composition, grain size, grain boundaries, and the frequency of micro-cracks. All of the samples selected also have been studied in mechanical tests used to evaluate the quality of aggregates in Sweden. The quality has been determined by means of flakiness, impact value, abrasion value I, and abrasion value II. An analysis of the influence of the mineral composition and textural properties on the aggregate quality has been performed using statistical correlation and linear models. The results indicate that an increasing content of feldspar negatively influences the strength against impact, while an increasing content of mica (tested to 35 vol.%) combined with a diminishing grain size and more irregular grain boundaries has a positive influence on the resistance of granitoids to mechanical impact. Abrasion value II seems to be mainly influenced negatively by an increasing frequency of micro-cracks. The practical implementation of the results is suggested.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Geoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Geotechnical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Annan samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Other Civil Engineering (hsv//eng)
Keyword
- Geoteknik
- Soil Mechanics
- Mining and Rock Engineering
- Gruv- och berganläggningsteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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