Abstract:Based on the tests of gneiss and basalt,the methods of the theoretical calculation,vacuum measurement,solvent and asphalt impregnation were compared to analyze the accuracy of the test data and parallel test errors to accurately test maximum theoretical relative density of drainage asphalt mixture.The results indicate that the measurement method by vacuum drainage asphalt mixture is more reasonable.Meanwhile,an analysis was made of the factors influencing the results by test methods of vacuum.A proposal was put forward that asphalt mixture be fully dispersed,and 15 min for vacuuming be a must.
