Abstract
Based on the study of temperature correction of british pendulum number (BPN) of GAC-16 asphalt mixture, the correlation between sideway force coefficient (SFC), british pendulum number (BPN) and mean texture depth (MTD) is studied. And the international friction index (IFI) calculated by different indexes is compared and analyzed. The result shows that the dry surface temperature is preferred for the temperature correction of the BPN of GAC-16 asphalt mixture. When conditions do not permit, such as rain weather, the temperature correction of the BPN may be considered by using the wet surface temperature. There is a good linear correlation between the SFC and the BPN. In the section where it is not convenient to test the SFC, the BPN can be used for the preliminary determination of the SFC. It is suggested to use the IFI calculated by the “MTD + BPN modified by the dry state surface temperature” to comprehensively evaluate the anti-skid performance.
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