Resistance to Disintegration of Rubberized Porous Asphalt

Abstract

Porous asphalt mainly rely on the binder content and binder properties for cohesion between aggregate particles where good cohesion would increase resistance to permanent deformation like raveling and stripping. This paper presented the results of a Cantabro Abrasion Loss Test on rubberized porous asphalt. Specimens were prepared with different percentages of binder content, rubber content and mixing process namely wet process and dry process. Two kinds of samples, an air-cured sample and a water-soaked sample, were used to simulate raveling and stripping respectively. Results indicated that the incorporation of a low amount of rubber resulted in better abrasion resistance in wet mixing process, while resistance to abrasion increases as rubber content increase on samples prepared by a dry mixing process. The study showed that dry process samples were more effective than wet mix samples in reducing abrasion loss for both conditions of sample.