Study on the time-dependency in deformation properties of uniformly-graded crushed gravels used as railroad ballast

In this study, triaxial compression tests with monotonic loading (ML) on uniformly-graded crushed gravel have been carried out under various loading conditions, including constant strain- rate (?0), 10 times ?0, 100 times ?0, incremental strain-rate changes during loading with and without creep stages, to consider time dependency in strength and...