Analysis of Effective Stiffness and Anisotropy of AC 16 Asphalt Mixture within NCN project Weave-UNISONO 2021, project No 2021/03/Y/ST8/00079

Summary:

The internal structure of the AC 16 (asphalt concrete mixture) was divided into the mortar phase and the mineral aggregate phase. Static creep tests using the Bending Beam Rheometer were conducted for the mortar phase to fit the rheological model. The aggregate arrangement and orientation were analysed using ImageJ software for the mineral phase. The Finite Element Method (FEM using ABACUS software) meshes were prepared based on images with an assumption of plane strain in 2D formulation. Using the FEM model, the tension/compression tests using selected characteristic directions were conducted, and the effective constrained stiffness moduli were estimated.

The dataset includes:

• TIFF input and output image of AC16 lateral surface, txt output results file
  • xz_AC_16 lateral surface_areas colour.tiff
  • xz_AC_16 lateral surface.tiff
  • xz_AC_16 lateral surface ImageJ - results.txt
• grey TIFF image for plot profile
  • grey image for plot profile.tif
• BBR test results, CSV raw data
  • sample 1 mortar.csv
  • sample 2 mortar.csv
• Input images: scan in xy plane and scan in xz plane
  • xy_AC_16 mel-dol.tif
  • xy_AC_16.tif
  • xy_AC_16 ImageJ - results.txt
  • xz_AC_16 mel_dol.tif
  • xz_AC_16.tif
  • xz_AC_16 ImageJ - results.txt
• Abaqus Input Files – horizontal and vertical tension
  • xy_AC_16_horizontal_tension.txt
  • xy_AC_16_vertical_tension.txt
  • xz_yz_AC_16_horizontal_tension.txt
  • xz_yz_AC_16_vertical_tension.txt