Pengembangan Campuran Bergradasi Split Mastic Asphalt (SMA) Menggunakan Bahan Reclaimed Asphalt Pavement (RAP) Dan Limbah Arang Batubara

Split Mastic Asphalt (SMA) is a mixture with gap grading or gap graded, which contains most of coarse aggregate and form an efficient framework for the deployment of the load. Coarse aggregate bound together by the mastic, which contain fiber fillers. Reclaimed Asphalt Pavement (RAP) is a long road pavement demolition materials. Filler coal are fossil fuels, sedimentary organic rock composed of carbon, hydrogen and oxygen. Due to the insistence of the oil crisis and environmental issues to reduce waste, material RAP then began utilized progressive manner reprocessed. The purpose of this study was to determine the proportion of RAP and the effect of the use of coal filler on the performance of split mastic asphalt. The research method is to make a mixture of graded split mastic asphalt with RAP variation of 0%, 50%, 100% of the total coarse aggregate and coal filler 0%, 50%, and 100% of the total weight of the filler. The total weight of the test object is 1200 grams. Coarse aggregate fraction as much as 70%, fine aggregate 19.5%, and 10.5% filler. In this study, the tests performed are as many as 18 marshall test specimen. This research was conducted at the Laboratory of Civil Engineering Pavement Materials Muhammadiyah University of Surakarta. Optimum Asphalt Content (KAO) using the new aggregate and fiber bran 7% obtained a value of 6.5%. Variations of the test specimen that RAP content of 0%, 50%, and 100% of the total coarse aggregates and coal filler content of 0%, 50%, and 100% of the total weight of the filler. testing the specimen, with rising levels of RAP VFWA value, and the flow tends to rise while the value of VMA, VIM, stability, and MQ (Marshall Quotient) tends to fall. While coal filler levels rise, then the value VFWA and flow to go up while the value of VMA, VIM, stability, and MQ (Marshall Quotient) down. RAP optimum levels to meet the specifications of high school grading 0/11 ie on the sample 6 with RAP appeal variasai new aggregate is 50: 50 and a filler content of coal 100%. RAP content of 50% and 100% to 100% coal filler made a chart to determine the optimum levels of RAP that meets the specifications that is equal to 67% of total coarse aggregates or 48% of the total mixture. Keywords : Reclaimed Asphalt Pavement; Split Mastic Asphalt; Filler coal; Marshall characteristics