In order to determine the types of asphalt mixture for each structural layer of expressway asphalt pavement under high temperature and rainy conditions in north of Guangdong, the road performance of Stone Asphalt Concrete (SAC) and Graded Asphalt Concrete (GAC) including Marshall stability, water stability, crack resistance at low temperature, stability at high temperature, water seepage resistance and skid resistance were systematically analyzed through experimental research. The results showed that: the Coarse Aggregate (CA) Ratios of the four asphalt mixtures were all between 0.4 and 1.0, and the asphalt mixtures would be easy to compact without segregation; GAC-16C and SAC-16 had similar water seepage resistance, sliding resistance and high temperature stability, while the former was superior in low temperature crack resistance and water stability; the low temperature crack resistance and water stability of GAC-20C were slightly better than SAC-20, but the high temperature stability of SAC-20 was much better; GAC-16C and SAC-20 were suitable for surface layer and middle layer in high temperature and rainy areas respectively.
张永升,罗代松,刘中宇,畅浩浩,李迪
. Road Performance of SAC and GAC under Environmental Conditions in North of Guangdong[J]. Transport Research, 2020
, 6(5)
: 38
-44
.
DOI: 10.16503/j.cnki.2095-9931.2020.05.005
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