EFFECT OF SAND ON THE SLIPPERINESS OF ICE

摘要

Ice on walkway surfaces increases the chance that a pedestrian will slip and fall. Sand inthe amount of 2.2 lb/100 ft ft2 (10.8 kg/100 m2) increases slip resistance to about 0.5, the) commonly accepted minimum slip resistance for a flat, straight walking surface. Icecovered with a layer of water has about the same level of slip resistance but could bemore dangerous since the ice may not be perceived.