Performance of Modified Buton Asphalt with Marine Fuel Oil in Asphalt Pavement Mixtures

The use of asphalt in road construction remains a top choice in many countries due to its advantages in providing a smooth surface, resistance to vehicle loads, and weather resistance. The limited availability of oil asphalt (AMI) as a binding material for road pavement layers causes the price to be expensive. The need for asphalt for road construction (excluding maintenance) reaches 1.6 million tons/year. Therefore, various efforts have been made to suppress the use of AMIs. One of the currently used asphalt is Asbuton extraction modified asphalt (AMO). In this regard, the purpose of the study is: To analyze the performance of AC-BC mixtures using a combination of AMI and AMO with Marine Fuel Oil (MFO) and to determine the best proportion of AMI and AMO combinations for AC-BC mixtures. Experiments were conducted in a laboratory using the Marshall Method. The best proportion of AMO usage is sought by making 5 variations of AMI and AMO comparisons, namely 100%:0%, 75%:25%, 50%:50%, 25%:75%, 0%:100%. The results of the Performance of Modified Buton Asphalt with Marine Fuel Oil in Asphalt Pavement Mixtures research are 1) The use of AMO for AC-BC mixtures can be used up to a proportion of 50% to AMI, but above 50% is not eligible because the flow value is above 4%; 2) The best proportion is obtained at 50%AMI proportion: 50%AMO, with the highest stability for the range that meets the requirements. Recommendations for improving the results are experiments with varying proportions of AMO between 50% and 70% to identify more flexible tolerance limits and mixture adjustments that may allow the use of AMO in higher proportions. This includes research on modifying additives or other materials that may reduce the flow value.