Presented by Nick Rogers, Tonkin & Taylor The shrink swell test, which combines both the shrink strain and the swell strain, was developed in Australia in the 1980s. This test now underpins a codified approach to the foundation design of lightweight buildings on expansive (reactive) soils in Australia and New Zealand. This presentation sets out the results of a critical examination of datasets of shrink swell tests undertaken in Auckland, New Zealand and Victoria, Australia and concludes that in these…