Construction Engineering and Management (건설관리)

Korea Institute of Construction Engineering and Management (한국건설관리학회)
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THE LASER-BASED AGGREGATE SCANNING SYSTEM: CURRENT CAPABILITIES AND POTENTIAL DEVELOPMENTS

  • Kim, Hyeong-Gwan (The University of Alberta) ;
  • Rauch, Alanf (The University of Texas at Austin) ;
  • Haas, Carl T. (The University of Texas at Austin)
  • Published : 2003.03.01
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Abstract

An automated system for scanning and characterizing unbound aggregates, called the 'Laser-based Aggregate Scanning System'(LASS), has been developed at the University of Texas at Austin. The system uses a laser profiler to acquire and analyze true three-dimensional data on aggregate particles to measure various morphological properties. Tests have demonstrated that the system can rapidly and accurately measure grain size distribution and dimensional ratios, and can objectively quantify particle shape, angularity, and texture in a size invariant manner. In its present state of development, the LASS machine is a first-generation, laboratory testing device. With additional development, this technology is expected to provide high-quality, detailed information for laboratory and on-line quality control during aggregate production.

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References

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