MEASUREMENT RESISTANCE OF CRACK SEALANT ASPHALT CONCRETE UNDER REPEATED LOADING

In this paper resistance of cracked and crack sealant asphalt samples were studied by varying temperature and time of loading to understand the crack sealant pavement behavior under Iran climatic conditions and to address the problem according to mode of distress. The common cause of pavement distress in Iran is rutting which initiates due to uncontrolled axle load and large variations in temperature. Creep tests were carried out using Universal Testing Machine (UTM-5P) on the mixes prepared in the laboratory. Polymer modified bitumen was used as sealing material and is a unique opportunity to compare the behavior of in crack sealant asphalt concrete. The results of laboratory tests on cracked and crack sealant asphalt concrete under the influence of load and environmental conditions are presented