This preliminary report presents data obtained from testing at the G. A. Riedesel Pavement Testing Facility, during the period from February 11 to May 4, 1972. The purpose of this project was four-fold: (1) to determine pavement wear caused by studded tires; (2) to evaluate the resistance of different pavement materials and textures used in the states of Washington and Idaho to wear caused by tire studs; (3) to test pavement materials and overlays to reduce tire stud damage; and, (4) to study the effect of studded truck tires on pavements.
Ring #5 consisted of three concentric tracks on which 16 tires traveled in eight wheel paths. Three studded types and unstudded passenger tires, three studded and unstudded truck tires, and 46 sections of various types of pavement materials surface overlays and surface textures were tested. The results are based on wear in terms of rate of wear, area removed, maximum and average rut depth using the WSU Profilometer, and the camera wire shadow apparatus, and are valid only under WSU testing conditions.
The findings indicate that some pavement materials are more resistant to the effect of studded tires than others. All types of studded tires tested caused some pavement wear and this affected the skid resistance values. The new types of studs reduced wear of various pavement materials. Studded truck tire wear was less than expected due to equipment problems.