KELAYAKAN EKONOMI ASBUTON BUTIR DI KALIMANTAN TENGAH
Road development in Indonesia in average needs 1,2 million ton of asphalt. 60d thousand ton from that amount supplied by Pertamina and the rest has been imported from various countries. The volume of imported asphalt which nearby 50% of national need, of course, give a negative impact to Indonesia. Because of that, a continuity optimalization effort for using asbuton has been kept. Since asbuton invented, the technology of using asbuton keep evolutes from conventional asbuton, fine asbuton, micro asbuton, asbuton mastic, granulated asbuton and pure asbuton. The use of granulated asbuton have conducted on project scale in five provinces in Indonesia and concluded that technically asphaltic asbuton mixture could be produced and applicated in field, and the mixture shown better peilformance compared to conventional asphaltic mixture. Although that, the choice of asphaltic mixtures type is not depend solely on technical reason, but also economic reason. The aim of this study is to know the economy feasibility of using granulated asbuton in asphaltic mixture in Middle Kalimantan. This study concluded that the use of granulated asbuton as a pavement materials gave a positive eflect on economic aspect, as it reduced the use of refinery asphalt and aggregate. Based on Cost Effectiveness analysis, in its optimum dozes, the price of AC-WC contained asbuton in type of B5/20 and B15/20 is economically feasible compared to AC- WC without asbuton with the same thickness when maximum ratio of asbuton price is 0.20 of refinery asphalt. And for B15D.5 and B20/25 asbuton types, the maximum ratio is 0.25. Based on Life Cyrcle Cost point of view, for the same service life, asbuton type of B5/20 is economically feasible when its maximum price ratio to refinery asphalt is 0.5. And for B15/20, B15/ 25 and B20/25 type of asbuton its maximum ratio are 0.4.
Dibuat oleh : R. Anwar YAMIN, Imam Aschuri, MSc. (ayplg@yahoo.com, aschuri@itenas.ac.id)
Kata Kunci : GmnulatedAsbuton, asphaltic mixture, economic feasibility, middle Kalimantan
Keterangan : Makalah ini di muat pada Jurnal Teknik Busur, Fakultas Teknik, Universitas Muhammaddiyah Palembang, Vol. 4, No. 1, ISSN : 2085-1987