Skid Resistance of Pavement Modification and Calibration of the Illinois Skid Test System.

摘要

The skid-test equipment was designed according to the applicable parts of ASTM Designation: E 274-65T,Tentative Method of Test for Skid Resistance of Pavements Using a Two-Wheel Trailer,and construction of the equipment was awarded to a commercial fabricator. After delivery,several modifications were made to improve the overall performance of the original equipment,and calibration procedures were established to insure the reliability of the system. Tests performed with three different methods of water application showed system details and method of water application to have a very significant effect on the magnitude of measured skid resistance and a brush-type applicator to be most effective in depositing a water layer of both uniform width and thickness directly in the path of the test tire.