Performance and construction technology analysis of drainage asphalt mixture
In order to explore the optimal porosity of drainage asphalt mixtures,the grading optimization design was carried out on drainage asphalt mixtures with different porosity based on the CAVF design method.Through indoor experiments,the performance of drainage asphalt mixture was studied.The results showed that when the void fraction changed from 16%to 20%,the drainage performance increased with the increase of void fraction,while the high temperature stability,anti scattering performance of asphalt mixture,and water stability all decreased.Based on the above research results,the application and summary of drainage asphalt pavement construction technology on the Yunfu-Zhanjiang expressway in Guangdong Province have formed quality control points,which can provide technical support for similar project construction.
highway engineeringdrain asphalt mixtureperformance indicatorsconstruction process
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