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Research on Bond Behavior of Asphalt Pavement based on Simulation Test
Pages: 1-6
Year: Issue:  4
Journal: Highway

Keyword:  asphalt pavementinter-layer force testershear strengthemulsified asphaltadhesion performance;
Abstract: The influence of asphalt mixture type,spray dosage of emulsified asphalt,temperature and emulsified asphalt on inter-layer adhesive property for asphalt pavement are analyzed by using simulation test and taking shear strength as evaluation index.SBS modified asphalt and common emulsified asphalt are selected.Double rutting plates are made and shearing tests on core samples to simulate the conditions of the real road surface,shearing tests by an inter-layer force tester which offer vertical load to simulate the real shear forces for pavement.The results show that inter-laminar shear strength of asphalt mixtures are different,AC-13>SMA-13>OGFC-13,the shear strengthen of three kinds of asphalt mixture will down with the temperature increase,but the variation of the asphalts are different,SBS modified emulsified asphalt is better than common emulsified asphalt,three kinds of asphalt mixture have its optimized spray dosage of emulsified asphalt,and the dosage of emulsified asphalt for AC pavement structure is lower than framework structure pavement.
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