Resistance to cohesion loss in cantabro test on specimens of porous asphalt containing modificated asbuton

Abstract

Abstract Nowadays, road pavement in Indonesia is still dominated by flexible pavement with petroleum bitumen mostly used as a binder. There is a huge deposit of hydrocarbon sedimentary rocks in several areas in Buton Island, Indonesia. One product of Buton natural rock asphalt is refined Asbuton modification which consists of approximately 70% bitumen and 30% minerals. An investigation of the effects of Asbuton modification on the performance of porous asphalt mixture was made using six mixtures based Asbuton modificated were 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, and 7.0%. This paper presents a comparative parallel about resistance to disintegration or cohesion loss from the results of the Cantabro test for raveling resistance. The application of Retona Blend as a binder in the porous asphalt mixture improved the raveling resistance in relationship Asbuton modification content with cantabro loss value.

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