An Investigation of the Durability of Skid Resistance of Wire Combed PCC Pavement Surfaces.

摘要

This report involves pavements constructed with the following textures: AstroTurf Drag, Gomaco Roll-A-Groove,wire combs with 5in tine lengths with 1/4in and 1/2in tine spacings, 4in tine lengths with 1/4in, 1/2in,and 3/4in tine spacings, 3in tine lengths with 1/4in tine spacings,and 3in tine lengths with 1/2in, 3/4in,and 1in tine spacings both with and without a burlap drag preceding. Nominal wire tine dimensions of .0625in in width and .028in in thickness were used. One project had a nominal wire tine width of .125in as a variable. Under a previous study,which was incorporated into this report,the following textures were constructed: burlap drag,heavy nylon bristle broom,fine nylon bristle broom,natural bristle broom,and wire comb with 3in tine length and 1/4in tine spacing. Included in this report is a brief description of each project and summaries of friction tests,sand patch texture depth tests and sound level measurements.