Abstract
Crumb rubber is tire retreading waste which is classified as a hazardous material because it can pollute the environment. In an effort to create an environment free of pollution, one of the efforts is to reuse it as building material. In this research, crumb rubber will be used to modify the 60/70 penetration bitumen to have a better performance as crack filler on roads that are damaged in the form of cracks. As crack filler the material must have resistance to softening at high pavement temperatures during the day. In this study, crack filler was examined in the form of penetrating asphalt with the addition of additives, namely Crumb Rubber. The result parameters are based on ASTM D5078 standards and testing procedures based on ASTM D5329, where tests include softening point, cone penetration, resilience and asphalt compatibility testing. The results show that the addition of 27 % CR to 60/70 penetration asphalt can increase the hardness of the asphalt, the softening point value, the resilience or recovery value which means reduced vulnerability to temperature.
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