Perbaikan Sifat Reologi Visco-Elastic Aspal dengan Penambahan Asbuton Murni Menggunakan Parameter Complex Shear Modulus
Abstract: The increasing
demand of crude oil will increase the price of petroleum asphalt. Indonesia has
imported asphalt to meet the need for the annually road construction and
maintenance. One solution to improving the rheological properties of bitumen is
by adding the harder bitumen or other chemical compound to reduce dependence to
petroleum asphalt. In Indonesia there is a source of natural asphalt in Buton
Island, Sulawesi with huge amount of deposit that potentially could improve the
rheological properties of Pen 60/70 Petroleum Asphalt. In order to obtain a
better understanding on the contribution of Asbuton to the improvement of
performance on rheological properties, this research used 19 variations of
Asbuton and pen 60/70 petroleum bitumen. This variation is then subjected to
the basic rheology test and the mechanistic test using Dynamic Shear Rheometer.
The conclusion of basic rheological performance is obtained that mixture
(Asbuton and 60/70 petroleum bitumen) will increase hardness of bitumen.
Conclusion on mechanistic rheological performance is that mixture (Asbuton and
60/70 petrol bitumen) will increase Performance Grade (PG) and Complex Shear
Modulus (G*). The results from the analysis of Master Curve and Black Diagram,
it is shown that the increasing proportion of bitumen Asbuton will decrease the
phase angle (δ) but its temperature susceptibility is worse.
Penulis: Eva Wahyu Indriyati,
Bambang Sugeng Subagio, Harmein Rahman
Kode Jurnal: jptindustridd130561
