Characterization and Performance of Asphalt Concrete Containing Reclaimed Asphalt Pavement and Filler Based on Coal Ash
Ari Widayanti (a*), Ria Asih Aryani Soemitro (a), Hitapriya Suprayitno (a), Januarti Jaya Ekaputri (a)
(a*) Civil Engineering, Institut Teknologi Sepuluh Nopember Surabaya
ariwidayanti1973[at]gmail.com
Abstract
This paper presented the characterization and performance of Asphalt Concrete contain Reclaimed Asphalt Pavement (RAP) and Coal ash as the waste material. The accumulation of RAP and coal ash require the maximal utilization as the road pavement. In terms of higher utilization of its performance, it is required to analyze the material characteristic and the material properties. The aim of this study is to obtained the performance of Asphalt Concrete contain RAP and filler based on coal ash. Filler variations consist of fly ash, bottom ash and geopolymer powder. Method used X-Ray Fluorescence, Scanning Electron Microscopy and Marshall Test. The results showed bulk density of 1.8 gr/cc, stability of 2,771.1 kg, stability residue of 47.1%, flow of 5.3 mm, VIM (Voids in Mix) of 12.0%, VMA (Voids in Mineral Aggregate) of 19.3%, VFB (Voids Filled Bitumen) of 47.1%. The better performance of asphalt concrete mixture is RAP, original asphalt, aggregate and filler bottom ash.
Keywords: Reclaimed Asphalt Pavement, coal ash, asphalt concrete
Topic: Civil Engineering