The mechanics of healing and self-healing in clayey soils

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This project aims to develop an experimentally-validated theory of healing and self-healing in clay and determine clay-polymer mixtures that heal cracks and fissures in clay. Healing of fissures will improve strength and reduce hydraulic conductivity, which will reduce risks associated with construction on fissured clay and make clay barrier systems in dehydrating environments more reliable. The project’s observations of crack healing are expected to advance understanding of this phenomenon of soil mechanics and of geotechnical applications where cracking can occur, such as in foundation design, waste containment, slope stability and embankment dams.