The influence of moisture on the resilient deformation properties of unbound granular materials was investigated based on repeated load triaxial tests. Results showed that the resilient modulus (M R ) decreased with increasing moisture for a relatively low number of load cycles (N) where the deformation behaviour was mostly resilient with a negligible amount of associated accumulated permanent deformation (PD). Modelling attempts on this behaviour were quite satisfactory. Furthermore, the M R showed an increasing trend with increasing moisture, up to the optimum, when the N was relatively large with a significant amount of accumulated PD. Above the optimum, the M R generally decreased. Further investigation suggested that moisture aided the post-compaction (PC) and possible particle rearrangement that resulted in the increased PD and increased M R . The existing model did not work in this case indicating that the effect of PC on M R should be considered in modelling.
Moisture influence on the resilient deformation behaviour of unbound granular materials
2016
Aufsatz (Zeitschrift)
Englisch
Moisture Influence on the Resilient Deformation Behaviour of Unbound Granular Materials
Online Contents | 2015
|Predicting permanent deformation behaviour of unbound granular materials
Online Contents | 2015
|Aggregate Morphology Affecting Resilient Behavior of Unbound Granular Materials
Transportation Research Record | 2006
|Aggregate Morphology Affecting Resilient Behavior of Unbound Granular Materials
Transportation Research Record | 2006
|