KARAKTERISTIK - KARAKTERISTIK BAHAN PENGIKAT ASPAL MINYAK YANG DICAMPUR DENGAN ASPAL DANAU TRINIDAD

• Main Author: Ruhiya, Yaya
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/2793
• Institution: Institut Teknologi Bandung

KARAKTERISTIK-KARAKTERISTIK BAHAN PENGIKAT ASPAL MINYAK YANG DICAMPUR DENGAN ASPAL DANAU TRINIDAD, Yaya Ruhiya , 1992, Program Magister Sistem dan Teknik Jalan Raya, Program Pascasarjana, Institut Teknologi Bandung. Trinidad Lake Asphalt (TLA) is a naturally occurring bitumen that comes from a 'pitch lake'. The proportion of TLA bitumen in TLA is 56.75%. TLA and TLA bitumen have a low penetration at 250C, high softening point temperature, high viscosity, high specific gravity and low ductility, indicating that they are brittle and hard. TLA can be used as an additive in the binder of bituminous mixes. It is claimed that TLA modified binders offer increased stability, improved durability, and better resistance to deformation and cracking. The purpose of this investigation has been to evaluate the extent to which TLA and TLA bitumen change the characteristics of binder, as found in Indonesia, and to evaluate the characteristics of bituminous mixes containing blends of Indonesian refinery bitumen and TLA. The mixes used in this study have been AC and HRS wearing course mixes based on Bina Marga specifications. The binders used in these bituminous mixes were 80/100 pen. grade refinery bitumen and the blends of refinery bitumen and TLA, consisting of either 10% or 30% TLA by weight of the total blended binder. There were two main components of the investigation. The first was an investigation into the characteristics of refinery bitumen, TLA, TLA bitumen and blends of refinery bitumen and TLA and TLA bitumen. The second was an investigation involving Marshall mix design and evaluation, including Immersion and Indirect Tensile tests at optimum binder content. The results of the first investigation indicated that the addition of TLA or TLA bitumen changed the characteristics of the binder. Increasing the proportion of TLA or TLA bitumen causes a decrease in penetration at 25°C and an increase in softening point temperature and viscosity. The second investigation indicated that the addition of TLA as an additive into the binder was more significant for the HRS mix than the AC mix