Lubricated Friction of Rubber Discussion

Abstract

Abstract The authors have presented a comprehensive and timely review of the likely friction mechanisms of rubber, sliding on lubricated surfaces. They have also advanced several new ideas which should stimulate workers in the field and which might affect the, selection of rubber sliders and test tires for routine pavement friction testers. Since their introductory paper summarizes the principal data and thoughts, presented in papers II to VII, the discussion refers, with one exception, to paper I only. I would like to particularly touch upon : (a) The significance of skidding accident data in their various forms of presentation. (b) Minimum required friction levels to prevent skidding during all “normal” vehicle maneuvers. (c) Friction transients of pavement surfaces at the onset of rain. (d) The existence or nonexistence of adhesion and the relative frictional contribution made by abrasion. (e) The relative merits of portable devices and skid trailers, intended for routine operation in the field.