Accession Number : AD0783627

Title :   Laser Measurement of Pavement Surface Textures.

Descriptive Note : Final rept.,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Gee,S. ; King,W. L. , Jr

Report Date : MAR 1974

Pagination or Media Count : 82

Abstract : A laboratory investigation was conducted into the feasibility of employing laser light depolarization as a measure of pavement surface textures. Pavement cores representing different conditions of wear were employed in the investigation, as were newly formed concrete slabs especially prepared for the tests. Results show that the laser technique is sensitive to the pavement textural characteristics. Comparison with independent frictional data and conventional textural data on the same samples indicates generally good correlation with the laser data. The conclusion is that the laser concept is feasible and offers a potentially attractive method for obtaining real-time measurements of pavement surface textures from a moving vehicle. (Modified author abstract)

Descriptors :   *Pavements, *Texture, *Gas lasers, Surface roughness, Measurement, Laser beams, Depolarization, Surface properties, Skids

Subject Categories : Lasers and Masers
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE