Laboratory and Field Studies on the Durability of Thermoplastic Road Marking Materials

摘要

Laboratory methods have been developed for determining the durability of thermoplastic road marking materials under Scandinavian conditions. The wear resistance of 28 different materials at -10 deg C has been measured in a Troger apparatus before and after artificial aging. The equipment is considered to simulate the effect of studded tires on the durability of road markings. The hardness of the materials, which also appears to influence durability, has been measured at 20 deg C. Durability of the 28 materials in the field has been measured at predetermined intervals over a 2-year period with the aid of special equipment. The validity of the laboratory methods has been assessed on the basis of the results obtained. A classification system for the durability of thermoplastic road marking materials using laboratory tests has been proposed.