期刊
CEMENT AND CONCRETE RESEARCH
卷 35, 期 8, 页码 1629-1637出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cemconres.2004.11.017
关键词
particle shape; image analysis; particle size distribution; physical properties; aggregates
A 3-D method for particle shape determination of coarse aggregates using image analysis, IA, is presented. It is based on the measures the axial length of all three axis of every particle in a coarse aggregate sample. Two images of the entire aggregate sample are taken, in lying and standing positions. Since the particle's intermediate axes are measured in both images they can be used to couple the shortest and longest axial dimensions for each particle. The method allows an interpretation of length/thickness, length/width and width/thickness ratios of all the particles and is thus comparable to the flakiness and shape index tests. (c) 2005 Elsevier Ltd. All rights reserved.
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