3D Aggregate Evaluation Using Laser and X-ray Scanning
ABSTRACT. In this paper, two scanning systems, an x-ray-based and a laser-based system, have been evaluated in terms of its capability in accurately acquiring three-dimensional (3D) surface data and their potential in evaluating fine and coarse aggregates. The dimension measurements, surface area and volume quantification capability of the two systems was evaluated through comparing these measurements with caliper measurements, theoretical calculations and other proved methods. The evaluations indicate that both the x-ray scanning method and laser scanning method can yield very high resolution up to 6 to 60 µm in determining the dimensions of aggregates, allowing for accurate characterization of the derived characteristics of aggregate shape, angularity and texture in true 3D.
KEYWORDS: aggregate characterization, ...
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