Abstract
The consolidation and shear strength behaviour of a lateritic soil developed on Tertiary basalt in southeast Queensland, Australia has been investigated. Oedometer tests were performed on remoulded specimens of the soil, and on a specimen obtained from an undisturbed block sample. Primary consolidation took place rapidly, and the total settlement over the applied stress range was small. The consolidation behaviour was similar to that expected of a silt, despite the appreciable clay content and relatively minor silt content of the soil. The analysis of secondary compression showed that this behaviour can be modelled satisfactorily using existing theory. The results of direct shear strength tests performed on remoulded specimens showed that the soil has a high shear strength despite its appreciable clay content. This is due to the cementation bonds between the particles at the micro-level.
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