A PROTOTYPE LASER SCANNER FOR CHARACTERIZING SIZE AND SHAPE PARAMETERS IN AGGREGATES
The Laser-based Aggregate Scanning System (LASS) is being developed at The University of Texas at Austin to rapidly characterize various properties of construction aggregates. For the determination of shape and size parameters for aggregates, "virtual proportional caliper" and "virtual sieve" concepts are introduced, where 3D data captured on each particle are rotated about different axes to find elongation and flatness ratios, and the smallest mesh opening size through which the particle can pass. Comparisons between manual measurements and the results from the LASS show good agreement.
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Supplemental Notes:
- Full conference proceedings available on CD-ROM.
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Corporate Authors:
University of Texas, Austin
International Center for Aggregates Research, 3208 Red River
Austin, TX United States 78705-2650Texas A&M University, College Station
Faculty Exchange Box H
College Station, TX United States 77843 -
Authors:
- Kim, H Y
- Haas, C T
- Rauch, A F
- Browne, C
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Conference:
- International Center for Aggregates Research 9th Annual Symposium: Aggregates - Concrete, Bases and Fines
- Location: Austin, Texas
- Date: 2001-4-22 to 2001-4-25
- Publication Date: 2001
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: 15p
Subject/Index Terms
- TRT Terms: Aggregates; Aggregates by shape and surface texture; Laser beams; Particles; Properties of materials; Scanners; Sieve analysis; Size
- Uncontrolled Terms: Elongated and flat; Laser profiling; Three dimensions; Virtual proportional caliper; Virtual sieve
- Subject Areas: Geotechnology; Highways; Materials; I36: Aggregates;
Filing Info
- Accession Number: 00983573
- Record Type: Publication
- Report/Paper Numbers: Final Draft
- Files: TRIS
- Created Date: Dec 27 2004 12:00AM