dc.contributor.author | Cepuritis, Rolands | |
dc.contributor.author | Snyder, Kenneth A. | |
dc.contributor.author | Garboczi, Edward J. | |
dc.contributor.author | Jacobsen, Stefan | |
dc.date.accessioned | 2017-01-10T15:14:41Z | |
dc.date.available | 2017-01-10T15:14:41Z | |
dc.date.created | 2016-12-22T09:52:41Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Powder Technology. 2016. | nb_NO |
dc.identifier.issn | 0032-5910 | |
dc.identifier.uri | http://hdl.handle.net/11250/2426960 | |
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.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.journal | Powder Technology | nb_NO |
dc.identifier.doi | 10.1016/j.powtec.2016.12.037 | |
dc.identifier.cristin | 1416572 | |
dc.description.localcode | © 2016 Elsevier B.V. All rights reserved. This is the authors' accepted and refereed manuscript to the article. Author's post-print is released with a Creative Commons Attribution Non-Commercial No Derivatives License. | nb_NO |
cristin.unitcode | 194,64,45,0 | |
cristin.unitname | Institutt for konstruksjonsteknikk | |
cristin.ispublished | false | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |