ABSTRACT
Queensland is a large state in Australia with a wet/dry climate that supports soil types known as vertosols, that are extremely active. A research program was initiated between University of the Sunshine Coast and industry (Quantum Ground Stabilisation Pty Ltd (QGS) and Pavement Management Services Pty Ltd (PMS)) to assess the efficacy of soil stabilisation products to enhance traditionally problematic vertosols. Tested products were shown to improve bearing capacity and inhibit water movement within treated pavements; additionally, back-analysis showed an increase in pavement modulus with time. QGS products appear to improve the trafficability of problematic vertosol soils in Queensland; further assessment is recommended to validate these findings.
