Characteristic of Coconut-Shell Ash as Filler and LDPE Plastic Waste as Substitution Materials of Porous Asphalt Mixtures
Tamalkhani Syammaun1, Firmansyah Rachman2, Rifki Hidayat3
1Tamalkhani Syammaun, Department of Civil Engineering, University of Muhammadiyah Aceh, Banda Aceh, Indonesia.
2Firmansyah Rachman, Department of Civil Engineering, University of Muhammadiyah Aceh, Banda Aceh, Indonesia.
3Rifki Hidayat, Department of Civil Engineering, University of Muhammadiyah Aceh, Banda Aceh, Indonesia.
Manuscript received on 25 November 2019 | Revised Manuscript received on 06 December 2019 | Manuscript Published on 16 December 2019 | PP: 340-344 | Volume-8 Issue-3S3 November 2019 | Retrieval Number: C10031183S319/2019©BEIESP | DOI: 10.35940/ijrte.C1003.1183S319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Porous asphalt is designed to have a relatively higher porosity than other pavement types, this porous property is obtained because the proportion of fine aggregate is less than other types of mixtures. In an effort to increase the strength of porous asphalt pavement structures, it is required to use other added materials both as additives, stabilizers and substitution materials. In this study, the added material used was low density polyethylene (LDPE) plastic waste as a substitute for asphalt and coconut-shell ash (CA) as filler substitution material. Stone ash, cement and fly ash are commonly used as fillers in asphalt mixture, CA is expected to be one of the alternatives. This study aims to determine the characteristics of using LDPE into asphalt pen. 60/70 and the use of 50% CA filler on the characteristics of porous asphalt mixture and to find out indications of deficiencies and strengths in the asphalt mixture. On the initial bitumen content without using substitutes, the optimum bitumen content (OAC) was 5.76% with the variation used of LDPE 3%, 5% and 7% and 50% CA as filler. At OAC value 5.76% with 3% LDPE substitution meet all required parameter. With the value of Marshall Stability, VIM, Flow, AFD, and CL are 560.50kg, 18.61%, 4.3mm, 0.22% and 19.69% respectively.
Keywords: Coconut-Shell Ash, Low Density Polyethylene, Porous Asphalt, Stability.
Scope of the Article: Materials Engineering