1.1 This test method provides a procedure to determine the fatigue life (number of cycles to failure, N_f) of asphalt mixtures, and also the reduction in dynamic modulus (E*) with loading cycles, using cylindrical samples subjected to three-point cyclic bending. The results obtained from this test can be used to calibrate Viscoelastic Continuum Damage (VECD) models to obtain a damage characteristic curve, which in turn can be used to obtain fatigue lives (N_f) at a variety of temperatures, strain levels, and frequencies (a separate standard practice is being drafted for this procedure). Even though this test method is intended primarily for displacement (strain) controlled fatigue testing, certain sections may provide useful information for force-controlled tests.

Product Details

Published:

12/15/2022

Number of Pages:

12

File Size:

1 file , 430 KB

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