Published in 1979
Certain highway locations need exceptionally high skid resistance because of the alignment, geometry, and drainage of the roadway and the complex turning maneuvers required. Several beam specimens made of bituminous mixes incorporating unconventional aggregates with physical characteristics likely to produce high skid resistance were installed in a pavement and tested periodically for skid resistance. The skid resistance values of the experimental mixes and a conventional resurfacing mix were approximately equal after 700,000 accumulated vehicle passes; therefore, there was no apparent benefit from using the unconventional aggregates.
Last updated: January 24, 2024