n Civil Engineering = Siviele Ingenieurswese - Statistical modelling of the resilient behaviour of unbound granular material : transportation engineering

Volume 22, Issue 8
  • ISSN : 1021-2000



The resilient behaviour of an unsaturated, unbound granular material is a primary input used in the mechanistic analysis of pavements incorporating such layers. Various models exist for the determination of the resilient behaviour, mainly based on the output of tri-axial laboratory testing. In a paper published in the (Van Aswegen & Steyn 2013) an investigation is presented where basic engineering properties, such as grading, laboratory compaction characteristics and optimum moisture content, are incorporated into the resilient behaviour model to quantify the effect of basic material properties on the resilient response of unsaturated, unbound granular materials. Such a resilient behaviour model will enable practitioners to estimate the behaviour of specific material, which might enable the use of available quality material that was discarded in the past.

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