Low-temperature performance prediction of asphalt mixtures used for LLP—new approach based on fundamental test methods and numerical modeling

摘要: A major mode of deterioration in fully-flexible long-life pavements (LLP) is surface-initiated top–down cracking. If surface maintenance suspended, cracks may conflict the concept, as they will propagate into structural layers and start. The risk cracking influenced by a number interacting factors. Critical stresses result, e.g. from 3D loading situation at or near pavement due to contact between tire surface, sudden change asphalt layer temperature gradient, traffic low-temperatures material related factors like ageing particle segregation stripping binder. Cracks also be initiated early construction micro-cracks induced roller. Depending on respective mechanism initiation, are observed orientated both directions, transversally road ...