Stress-Strain Behavior of Crushed Concrete as a Special Anthropogenic Soil.

The stress-plastic dilatancy relationship was investigated for crushed concrete during drained and undrained triaxial compression tests in the light of the frictional state concept. The slope of the dilatant failure state line is greater than that of quartz sand for drained triaxial compression due to the crushing effect. The crushing effect parameters for drained and undrained conditions are very similar.

Stress-Dilatancy Behaviourof Fibre-Reinforced Sand.

This paper analyses the stress-strain behaviour of fibre-reinforced sand using the results obtained by drained triaxial compression tests presented in the literature. The general stress-plastic dilatancy equation of the Frictional State Concept has been used to describe the behaviour of fibre-reinforced sand for different shear phases. The behaviour of pure sand is taken as a reference for the behaviour of sand with added fibres.

The Stress-Dilatancy Behaviour of Artificially Bonded Soils.

In this study, the results of triaxial compression tests of some naturally and artificially bonded soils presented in the literature were analysed. It was shown that the three characteristic stages of plastic flow during shear can be identified. In all stages, the stress-dilatancy behaviour could be approximated by the general linear stress-dilatancy equation of the Frictional State Concept.