Automated Laser Spectrographic Pattern Matching for Aggregate Identification

This Innovations Deserving Exploratory Analysis (IDEA) project examined the feasibility of using a laser monitoring system to provide real-time data to characterize aggregate properties in a laboratory or field environment. The approach makes use of the known physical, chemical and mechanical properties and aggregate criteria as defined by AASHTO and ASTM, and correlates these properties with spectral emission data induced by a laser in a process referred to as Laser Induced Breakdown Spectroscopy (LIBS). Deployment of such a system can provide a layer of quality control that the industry currently does not have, thereby ensuring that the transportation infrastructure is being rehabilitated or constructed using quality materials that maximize service life.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/IDEA/FinalReports/Highway/NCHRP150_Final_Report.pdf
• 
• Supplemental Notes:
  • This NCHRP-IDEA investigation was conducted by Chesner Engineering and New Mexico State University. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Chesner, Warren H
  • McMillan, Nancy J
• Publication Date: 2012-4-18

Language

• English

Media Info

• Media Type: Print
• Edition: Final Report
• Features: Figures; Photos; Tables;
• Pagination: 38p
• Serial:
  • NCHRP-IDEA Program Project Final Report
  • Publisher: Transportation Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Feasibility analysis; Lasers; Properties of materials; Quality control; Spectroscopic analysis; Technological innovations
• Identifier Terms: Innovations Deserving Exploratory Analysis (IDEA) (Program)
• Subject Areas: Highways; Materials; I36: Aggregates;

Filing Info

• Accession Number: 01373111
• Record Type: Publication
• Report/Paper Numbers: Highway IDEA Project 150
• Files: TRIS, TRB
• Created Date: Jun 20 2012 10:34AM