The present work discusses the friction behavior of different floor materials when rubber sole slid against them under dry, water and detergent wet sliding conditions. In order to offer durable and elastic behavior as well as shock absorption for the tiles, polyurethane (PU) coating was applied on the surface of cement tiles. Then rubber, sand and glass granulates as well as steel wires were used as filling and reinforcing addition to PU. It was found that at dry and wet sliding, friction coefficient displayed by tiles coated by PU filled by glass granulates showed the highest friction values. It seems that abrasive action of the glass granulates into the rubber surface was responsible for that behavior. Rubber coating displayed relatively lower value of friction coefficient followed by the unfilled PU coating. Cement tiles and tiles coated by PU and reinforced by steel wires offered the lowest values.Coating cement tiles by PU filled by sand particles showed higher values of friction coefficient at dry sliding. In contradiction to that, presence of water and detergent film caused drastic friction decrease due to the presence of multi tiny reservoirs that during sliding the fluid gets up to the sliding surface forming a film and consequently friction decreased.
Nabhan et al. (Mon,) studied this question.