Characterization of bitumen stabilised granular pavement material properties using tri-axial testing

Ebels L.J.; Jenkins K.J.

Characterization of bitumen stabilised granular pavement material properties using tri-axial testing

Date

2007

Authors

Ebels L.J.

Jenkins K.J.

Abstract

The Stellenbosch University in South Africa has recently undertaken a research project on selected cold mixes. The focus of this paper is on the behaviour of these mixes in the monotonic and repeated loading tri-axial test. The test matrix included both bitumen emulsions and foamed bitumen mixes. The results of the monotonic tri-axial tests were explored for useful information other than the standard shear parameters. This includes tangent and secant moduli and strain-at-failure from the engineering stress-strain diagram. For the repeated load tri-axial tests the initial strain, strain rate and combinations of strain and strain rate that lead to failure were investigated. A strain rate threshold as function of the strain is provided. © 2007 Taylor & Francis Group, London.

Citation

Advanced Characterisation of Pavement and Soil Engineering Materials - Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
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