ABSTRACT
Sulphide-rich soil, a prevalent soft alluvial type along the Baltic Sea coast, is characterised by its sulfur content, low strength, high compressibility and significant organic components. Common practice involves replacing this soil with more resilient subgrade materials; however, excavated sulphur-rich soil necessitates to be treated as environmentally hazardous, due to its oxidation potential, leading to increased construction expenses. If instead, sulphide-rich soil is going to be used as subgrade, it becomes crucial to define its cyclic mechanical properties. This requires representative samples, which may not always be available through conventional undisturbed sampling methods. In this paper, the slurry deposition method was adopted to generate reconstituted samples of sulphide-rich soil for static triaxial testing. The method provided consistent samples and captured the characteristics of the natural soil. The triaxial results are the first step towards the understanding and definition of the cyclic behaviour of sulphide-rich soil.
