Comparing different fatigue test methods at asphalt mastic level

• DOI: 10.1617/s11527-022-01970-4
• Publication Date: 2022-05-16T10:03:51Z
• Authors: Michael Steineder; Martin Johannes P...; Bernhard Hofko; Mohit Chaudhary; Nikhil Saboo; Ankit Gupta
• Keywords: Dynamic shear rheometer

Abstract Latest research is focused on predicting the fatigue behavior of asphalt mixtures through cost-effective and simple test methods mastic level (asphalt binder + mineral fines). There are numerous for binders using dynamic shear rheometer (DSR). However, up to now, results different tests DSR have not been directly compared. Therefore, four mixes were prepared, each was tested with two most popular [linear amplitude sweep (LAS) time (TS) test] then compared other. The TS performed as stress-controlled strain-controlled tests. All LAS cylindrical hyperbolic specimen shapes identify impact shape. Different criteria applied evaluation investigate comparability results. Stress-controlled tests, reveal rankings performance. a dissipated energy approach can combine into one curve. shape be used in same rankings. applicable A calculation model could derived establish relationship between measured actual stresses strains necking specimen. appear promising