HOT ASPHALT PAVEMENT MIXTURES INCORPORATING ALL WASTE MATERIALS
| Main Author: | Thanaya, I Nyoman Arya; Fakultas Teknik Jurusan Teknik Sipil Universitas Udayana, Kampus Bikut Jimbaran, Denpasar-Bali |
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| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Media Teknik Sipil
, 2009
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| Subjects: | |
| Online Access: |
http://puslit2.petra.ac.id/ejournal/index.php/mts/article/view/17268 http://puslit2.petra.ac.id/ejournal/index.php/mts/article/view/17268/17214 |
Daftar Isi:
- This paper describes the performances of asphalt hot mixtures incorporating all waste materials: crushed glass; steel slag; and coal ashes, i.e. fly ash and furnace bottom ash (FBA) into hot asphalt mixtures. The mixture properties evaluated were: volumetric properties, stiffness modulus (ITSM), dynamic creep, and creep stiffness. These properties were compared with conventional hot asphalt mixtures, i.e. not containing any waste/recycled materials. Porosity of 4 % and indirect tensile stiffness (ITSM) value of 2000 MPa was selected for low to medium trafficked road. Compared with other waste materials used, FBA has most significant potential to reduce stiffness; hence the main objective of the experiments was to evaluate the performance on the mixtures and to limit the incorporation of FBA for maintaining the stiffness (ITSM) of the mixtures. It was found that hot asphalt mixtures can incorporate all waste materials tried where a limited amount of FBA (up to 25 % of the fines aggregate components) can be used to maintain mix stiffness. The utilization of harder bitumen grades (minimum 50 pen.) is recommended.