Engineering Characterization of Hot-Mix Asphalt in Western Australia

摘要

The use of full depth asphalt pavement to construct and rehabilitate heavily loaded urban roads that has grown rapidly in Western Australia over the past 3 years. Five different types of asphalt mixes were produced in the laboratory according to the Australian Standard methods of sampling and testing asphalt to modify payment performance mixture. The main role of this research is to evaluate and assess the hot-mix asphalt pavement performance characteristic for Western Australia road. In this study, laboratory test for tensile strength, resilient modulus, wheel tracking, asphalt binder content and Marshall Compaction test were taken and analyzed to each asphalt mixtures. Results showed that AC20-75 and AC14-75 Blow asphalt mixes were more efficient and effective in pavement performance as compared to the other mixes. In general, all the asphalt mixes that are used in this study can strength and stable the mixture stiffness of asphalt that is notable. The modification effect rank can be described as AC20-75 Blow ＞ AC14-75 Blow ＞ AC14-50 Blow ＞ AC7-50 Blow ＞ SMA7-50 Blow in this research.