PENGARUH PEMANFAATAN FLY ASH TERHADAP KARAKTERISTIK CAMPURAN ASPAL BERPORI UNTUK LAPISAN AC-WC
Keywords:
Porous asphalt, Fly ash, Marshall test, Permeability, PavementAbstract
Porous asphalt is a type of road pavement layer with a lower proportion of fine aggregate, resulting in larger voids compared to conventional dense-graded asphalt pavement. Due to larges pores structure, the use of pozzolanic materials such as limestone, fly ash, etc has been investigated to improve the stabilty of porous asphalt. The aims of this study is to experimentallty investigated the characteristic of porous asphalt containing fly ash as a replacement of stone ash at percentage of 3%, 5%, and 7% by wt.. The results show that the highest stability of porous asphalt containing 5.5% asphalt content was achieved at 7% addition of fly ash with a stability value of 1130.36 kg. Porous asphalt with fly ash contents of 3% and 5% resulted in relatively lower stability values, but still within specification limits. Moreover, the permeability test results for porous asphalt, both with and without fly ash addition, met the specifications from AustralianAsphalt Pavement Association (AAPA, 2004). Furthermore, fly ash as an industrial waste is promising in making more stable porous asphalt that can be applied for light load pavement while at the same time beneficial in storm water management.
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Indonesian Society of Applied Science (ISAS)
