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Article: On the particle size distribution of a basaltic till

TitleOn the particle size distribution of a basaltic till
Authors
KeywordsGlacial soils
Laboratory tests
Particle breakage
Soil classification
Issue Date2011
PublisherJapanese Geotechnical Society. The Journal's web site is located at https://www.jiban.or.jp/e/soils-and-foundations/
Citation
Soils And Foundations, 2011, v. 51 n. 1, p. 113-121 How to Cite?
AbstractStress and strain history play a major role in defining the final grading of a soil, and by studying how the particle size distribution of a soil evolves with stress and strain it may be possible to highlight some important aspects of the sediment past history. In this paper, the characteristics and evolution of the grading of a till from Iceland, so-called Langjö kull sediment, are examined. Specimens of the till were tested in compression (triaxial, oedometer tests) to very high pressures, and in shearing (triaxial, ring shear tests) to very high strains. The change in grading corresponding to particle breakage during compression and shearing was monitored using sieve analysis and scanning electron microscopy. The results show that the particle size distribution of the till, which is well graded, does not evolve when the till is subjected to high stresses or strains. Additional tests on specimens made of the larger-sized till particles didhowever show signs of breakage during testing. This suggests that the current natural grading of the till was achieved by incessant shearing during its past history, and corresponds to an ultimate, "critical" grading. This is confirmed by the mineralogical analysis of the sediment, which highlights a single parent rock and weathering of the particles by mechanical processes only.
Persistent Identifierhttp://hdl.handle.net/10722/133609
ISSN
2015 Impact Factor: 1.238
2015 SCImago Journal Rankings: 1.623
References

 

DC FieldValueLanguage
dc.contributor.authorAltuhafi, Fen_HK
dc.contributor.authorBaudet, BAen_HK
dc.contributor.authorSammonds, Pen_HK
dc.date.accessioned2011-05-24T02:11:50Z-
dc.date.available2011-05-24T02:11:50Z-
dc.date.issued2011en_HK
dc.identifier.citationSoils And Foundations, 2011, v. 51 n. 1, p. 113-121en_HK
dc.identifier.issn0038-0806en_HK
dc.identifier.urihttp://hdl.handle.net/10722/133609-
dc.description.abstractStress and strain history play a major role in defining the final grading of a soil, and by studying how the particle size distribution of a soil evolves with stress and strain it may be possible to highlight some important aspects of the sediment past history. In this paper, the characteristics and evolution of the grading of a till from Iceland, so-called Langjö kull sediment, are examined. Specimens of the till were tested in compression (triaxial, oedometer tests) to very high pressures, and in shearing (triaxial, ring shear tests) to very high strains. The change in grading corresponding to particle breakage during compression and shearing was monitored using sieve analysis and scanning electron microscopy. The results show that the particle size distribution of the till, which is well graded, does not evolve when the till is subjected to high stresses or strains. Additional tests on specimens made of the larger-sized till particles didhowever show signs of breakage during testing. This suggests that the current natural grading of the till was achieved by incessant shearing during its past history, and corresponds to an ultimate, "critical" grading. This is confirmed by the mineralogical analysis of the sediment, which highlights a single parent rock and weathering of the particles by mechanical processes only.en_HK
dc.languageengen_US
dc.publisherJapanese Geotechnical Society. The Journal's web site is located at https://www.jiban.or.jp/e/soils-and-foundations/en_HK
dc.relation.ispartofSoils and Foundationsen_HK
dc.subjectGlacial soilsen_HK
dc.subjectLaboratory testsen_HK
dc.subjectParticle breakageen_HK
dc.subjectSoil classificationen_HK
dc.titleOn the particle size distribution of a basaltic tillen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0038-0806&volume=51&spage=113&epage=121&date=2011&atitle=On+the+particle+size+distribution+of+a+basaltic+tillen_US
dc.identifier.emailBaudet, BA:baudet@hku.hken_HK
dc.identifier.authorityBaudet, BA=rp01303en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3208/sandf.51.113en_HK
dc.identifier.scopuseid_2-s2.0-84859794177en_HK
dc.identifier.hkuros185243en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84859794177&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume51en_HK
dc.identifier.issue1en_HK
dc.identifier.spage113en_HK
dc.identifier.epage121en_HK
dc.identifier.eissn1881-1418-
dc.publisher.placeJapanen_HK
dc.identifier.scopusauthoridAltuhafi, F=25637246000en_HK
dc.identifier.scopusauthoridBaudet, BA=15841467600en_HK
dc.identifier.scopusauthoridSammonds, P=6603943658en_HK

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