LABORATORY STUDY OF ASPHALT STARBIT E-55 POLYMER MODIFIED APPLICATION ON ASPHALT CONCRETE WEARING COURSE (AC-WC) IN TERMS OF DURABILITY AND INDIRECT TENSILE STRENGTH
Abstract: The conventional
asphalt road has almost been considered fail to serve the transportation needs.
It is indicated by the occurrence of premature damage which is caused by
vehicle load and climate. Starbit E-55, the polymer modified bitumen, is
formulated to meet the requirement of transport development. Considering those
needs, it is important to investigate the feasibility level of that modified
bitumen as alternate asphalt instead of the conventional one. This research
began with the measurement of the properties of hard layered AC-WC Starbit
E-55, then comparing the result to 60/70 penetration of Pertamina asphalt. The
next step is then, to determine the converted value so as to be close to that
of Pertamina (60/70 penetration). This step is conducted by applying durability
and ITS tests on the mixture. Result of the tests showed that hard layered
AC-WC Starbit E-55 has better characteristic at 5.7% optimum level asphalt and
6.4% of Pertamina asphalt (60/70 penetration). Starbit E-55 converted level
within hard-layered ACWC is 5.6%. The performance test result on immersion with
variance of 1, 3, 5, 7 and 14 days shows that durability value of Starbit E-55
AC-WC has better performance. During the process, Starbit E-55 required 15.38%
higher energy consumption.
Author: Damianus Kans
Pangaraya
Journal Code: jptsipilgg150044
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