Abstract
Asphalt mixture is a viscoelastic material. Several factors affect the behavior of a viscoelastic material. Temperature and loading time are the most critical of these parameters. Vehicle speed affects time loading, therefore it’s very important to know the influence of vehicle speed changes in mechanistic performance of bitumen and asphalt mixture with different aggregate gradation types, namely dense graded and gap graded. Based on data of bitumen penetration, bitumen softening point, volume of bitumen, volume of aggregate and volume of voids, mechanistic performance of bitumen and asphalt mixture influenced by vehicle speed changes can be predicted using the software BANDS 2.0. The variation of vehicle speed will be carried out to see its significance. The results of the BANDS 2.0 simulation show that vehicle speed changes influence bitumen stiffness, asphalt mix stiffness and fatigue life asphalt mix. The higher the vehicle speed is, the higher bitumen stiffness and asphalt mix stiffness will be, but fatigue life asphalt mix will be lower. At the same vehicle speed, asphalt mix stiffness of dense graded mixture will be higher than gap graded mixture. The other way for fatigue life asphalt mix.
Highlights
IntroductionVehicle speed affect time loading, it is very important to know the effect of vehicle velocity changes in mechanistic performance of bitumen (for example: bitumen stiffness) and hotmix asphalt (such as asphalt mix stiffness and fatigue life asphalt mix) with different aggregate gradation types, namely dense graded and gap graded
Vehicle speed affect time loading, it is very important to know the effect of vehicle velocity changes in mechanistic performance of bitumen and hotmix asphalt with different aggregate gradation types, namely dense graded and gap graded
This study aimed to know the effect of vehicle speed changes in mechanistic performance of bitumen and hotmix asphalt with different aggregate gradation types, namely dense graded and gap graded using the software BANDS 2.0 based on data of bitumen penetration, bitumen softening point, volume of bitumen, volume of aggregate and volume of voids
Summary
Vehicle speed affect time loading, it is very important to know the effect of vehicle velocity changes in mechanistic performance of bitumen (for example: bitumen stiffness) and hotmix asphalt (such as asphalt mix stiffness and fatigue life asphalt mix) with different aggregate gradation types, namely dense graded and gap graded. In Indonesia, the testing of asphalt mixture is performed through Marshall Test It was initially developed by Bruce Marshall and continued by the US Corps Engineer. This study aimed to know the effect of vehicle speed changes in mechanistic performance of bitumen (for example: bitumen stiffness) and hotmix asphalt (such as asphalt mix stiffness and fatigue life asphalt mix) with different aggregate gradation types, namely dense graded and gap graded using the software BANDS 2.0 based on data of bitumen penetration, bitumen softening point, volume of bitumen, volume of aggregate and volume of voids
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