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