Three-Dimensional Surface Texture Characterization of Portland Cement Concrete Pavements

This paper investigates the effectiveness of different mathematical methods in describing the 3-D surface texture of Portland cement concrete (PCC) pavements. 10 PCC field cores of varying surface textures were included in the analysis. X-ray Computed Tomography (CT) was used to scan the upper portion of these cores, resulting in a stack of 2-D grayscale images. Image processing techniques were utilized to isolate the void pixels from the solid pixels and reconstruct the 3-D surface topography. The resulting 3-D surfaces were reduced to 2-D "map of heights" images, whereby the grayscale intensity of each pixel within the image represented the vertical location of the surface at that point with respect to the lowest point on the surface. The "map of heights" images were analyzed using 4 mathematical methods, namely the Hessian model, the Fast Fourier transform, the wavelet analysis, and the power spectral density. Results obtained were compared to the mean profile depth computed in accordance with ASTM E1845.

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  • Authors:
    • Abbas, Ala Rebhi
    • Kutay, Muhammed Emin
    • Azari, Haleh
    • Rasmussen, Robert Otto
  • Publication Date: 2007

Language

  • English

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Filing Info

  • Accession Number: 01045054
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 28 2007 4:33PM