KARAKTERISTIK ASPAL DENGAN VAHAN TAMBAH PLASTIK DAN EINERJANYA DALAM CAMPURAN HRA

• Main Author: Detra Asrar, Yolly
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/3232
• Institution: Institut Teknologi Bandung

High temperature of road pavement, high rainfall and traffic loading are some several reasons caused some defects on asphaltic pavement in Indonesia. Many attempts have been done in reducing these tendency of defects and one of them is by introducing an additive agent in bitumen to change its physical properties especially in temperature susceptibility and stripping, and associated with aggregate to make a better asphaltic mixture suited to high temperature and heavy rainfall condition like in Indonesia. In this study, the use of plastic as an additive in bituminous material agent is expected to change the physical properties of bitumen and improve mix stability and its resistance to deformation. The results show that the addition of 0% to 5% of plastic into the bitumen lead to a reduction in penetration value from 74,9 to 66, 6. Although additional of plastic reduce softening point of bitumen, addition of 1% to 5% plastic cause a relative small changes of mixing and compaction temperatures. The result of Marshall test shown that the addition of plastic up to 3% in bitumen, improves the stability, density, CAD and Marshall Quotient of HRA mixture. In line with the addition of plastic content in bitumen, permanent deformation of mix resulted from the wheel tracking test are decreased and caused an improvement in dynamic stability of mix. In general, the results of this study shown that the addition of 2% to 3% of plastic to bitumen gives a better influence to asphalt mix characteristic.