Study on the Influence of Highway Subgrade Materials on Pavement Performance
In order to analyze the influence of highway subgrade materials on pavement performance,the paper conducted test analysis on the performance of cement stabilized gravel and asphalt concrete subgrade materials(compressive strength,bending value,compaction degree).The results show that the average unconfined compressive strength of the cement stabilized crushed stone mixture is 3.8 MPa,and the coeffi-cient of variation is 1.6%,that is,the data difference is small,the reliability is high,the compressive strength and bearing capacity are high,and the cement stabilized crushed stone mixture can be spread on the heavy-duty road section.The asphalt mixed beam type roadbed is rela-tively flat and fast in construction,but its compressive strength is weak,but its deformation resistance is strong,and it can be applied to the section with large traffic flow.
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