EVALUATION METHOD OF ROAD SURFACE TEXTURE RELATED TO SKID RESISTANCE OF CONCRETE PAVEMENT

The correlation between skid resistance and texture was investigated for various concrete pavement surfaces. The results showed that it is effective to extract and evaluate the roughness curve of a specific road surface wavelength from the measured texture curve, and that the roughness of the road surface wavelength of 0.5 mm or less has a large effect on the skid resistance. The arithmetic mean roughness (Ra) calculated from the roughness curve of the road surface wavelength of 0.5 mm or less showed a strong positive correlation with the dynamic friction coefficient by DFTester. The similar tendency was observed for BPN, although the difference in the relationship depended on the degree of wearing, and BPN was higher on the road surface that had not been affected by wearing even when Ra was equivalent. Since the effect was considered to be caused by textures other than Ra, correlation analysis was conducted by adding other indicators as well.

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  • English
  • Japanese

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  • Accession Number: 01838761
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Mar 16 2022 10:22AM