Pavement Professor Breaks New Ground in Quality Control

This article discusses the use of radar technologies in asphalt safety analysis applications. Ground-penetrating radar has typically been used for locating unseen materials. In the article, its use in scanning the molecular makeup of asphalt, concrete, aggregate and soils is described. The article relates how a civil engineering professor at Texas A&M applied the field of micromechanics to radar and studied light waves as correlated by the speed at which that light travels through materials. Through the focus of the radar on asphalt, both the depth of the material and the material type can be established. This technology has recently been applied in actual applications for checking the compaction of asphalt pavement during construction, and has minimized the need for coring techniques. Benefits of using radar instead of coring are twofold: the first is to facilitate non-destructive testing that does not require the marginalization of road infrastructure, and the second is to minimize traffic congestion associated with the duration required for coring techniques.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos;
  • Pagination: pp 18-19
  • Serial:
    • ENR
    • Volume: 255
    • Issue Number: 16
    • Publisher: McGraw-Hill, Incorporated
    • ISSN: 0891-9526

Subject/Index Terms

Filing Info

  • Accession Number: 01010969
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Nov 28 2005 6:15PM