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Crushed aggregate response upon impact in dry and wet conditions
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0001-8564-3694
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-5165-4229
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-9766-0106
2017 (engelsk)Inngår i: Journal of Earth Sciences and Geotechnical Engineering, ISSN 1792-9040, E-ISSN 1792-9660, Vol. 7, nr 3, s. 1-22Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents results from a series of impact tests upon coarse-grained crushed aggregate. The material has been evaluated for two conditions, i.e. dry and wet (pendular state). Three main sets of test configurations were used with respect to compactive effort (low, medium and high) which was defined by the impact velocity of a drop hammer. Three accelerometers were installed in an impact machine to measure deceleration of the drop hammer and accelerations in the tested material at three different locations. The studied parameters were density, compaction, angle of repose, critical angle and particle size distribution. The results showed that the wet material gives larger density as well as critical angle. However, there was no discernible change in particle size distribution.

sted, utgiver, år, opplag, sider
ScienPress Ltd , 2017. Vol. 7, nr 3, s. 1-22
Emneord [en]
Impact tests, granular material, aggregate, compaction, wet material, dry material
HSV kategori
Forskningsprogram
Gruv- och berganläggningsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-62844OAI: oai:DiVA.org:ltu-62844DiVA, id: diva2:1086435
Prosjekter
Improved understanding of sublevel blasting – Determination of the extent of the compacted zone, its properties and the effects on caving
Merknad

Validerad; 2017; Nivå 1; 2017-04-04 (andbra)

Tilgjengelig fra: 2017-04-03 Laget: 2017-04-03 Sist oppdatert: 2018-11-15bibliografisk kontrollert

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https://www.scienpress.com/journal_focus.asp?main_id=59&Sub_id=IV&Issue=244031

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Petropoulos, NikolaosJohansson, DanielNordlund, Erling

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