dc.contributor.author | Cepuritis, Rolands | |
dc.contributor.author | Garboczi, Edward J. | |
dc.contributor.author | Jacobsen, Stefan | |
dc.contributor.author | Snyder, Kenneth A. | |
dc.date.accessioned | 2017-05-22T08:48:16Z | |
dc.date.available | 2017-05-22T08:48:16Z | |
dc.date.created | 2016-12-22T09:52:41Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Powder Technology. 2017, 309 110-125. | nb_NO |
dc.identifier.issn | 0032-5910 | |
dc.identifier.uri | http://hdl.handle.net/11250/2443089 | |
dc.description.abstract | The shape of concrete aggregate fine particles (fines), with particle sizes between 3 µm and 250 µm, produced by high-speed vertical shaft impact (VSI) crushing of 10 different rock types from quarries in Norway, has been studied by both dynamic image analysis (DIA), which is a two-dimensional (2-D) method, and X-ray computed microtomography (µCT) coupled with spherical harmonic (SH) analysis, which is a threedimensional (3-D) method. The 3-D µCT results serve as a check on the 2-D DIA results. The intent was to evaluate the applicability of the 2-D DIA method to extract shape parameters that could represent the actual 3-D shape of the VSI crushed concrete aggregate particles. The results show that the 2-D DIA method has problems correctly measuring the shape of particles smaller than about 40 µm due to too large of a pixel size and possibly some particle flocculation. The findings of this paper show, however, that if a large enough number of particles are analysed by the 2-D DIA method, a good but limited indication of the actual 3-D shape of the irregular crushed aggregate fines larger than 40 µm can be acquired and used for simple quality control in hard rock quarries. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Comparison of 2-D and 3-D shape analysis of concrete aggregate fines from VSI crushing | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.source.pagenumber | 110-125 | nb_NO |
dc.source.volume | 309 | nb_NO |
dc.source.journal | Powder Technology | nb_NO |
dc.identifier.doi | 10.1016/j.powtec.2016.12.037 | |
dc.identifier.cristin | 1416572 | |
dc.relation.project | EU/247619 | nb_NO |
dc.description.localcode | This is the authors' accepted and refereed manuscript to the article. Locked until 20 december 2018 due to copyright restrictions | nb_NO |
cristin.unitcode | 194,64,45,0 | |
cristin.unitname | Institutt for konstruksjonsteknikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |