A Laboratory Investigation of the Structural Design of Bituminous Mixtures

摘要

The research was undertaken to investigate theory and tests that would be useful in describing the behavior of transversely anisotropic bituminous mixtures. It was also the purpose of the study to instrument a typical element of bituminous mixture to obtain measurements that could be used in describing the stress-deformation behavior of the material tested. The theory and testing procedures were complementary and provided quantitative parameters that describe the response of a bituminous mixture subjected to creep loading. Laboratory tests undertaken to substantiate the theory include uniaxial compression, direct shear, uniaxial compression with volume change measurements and torsion tests. The matrix equation was derived and can be used to describe the behavior of transversely anisotropic, nonconservative, statistically homogeneous materials subject to small strains. (Author)