Swell, stiffness and strength of expansive soil-rubber (ESR) mixtures at various scales : effect of specimen and rubber particle sizes
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Expansive soils and stockpiled scrap tires present unique constructability and environmental challenges to the Front Range of Northern Colorado, respectively. Swell, stiffness and strength parameters of expansive soil-rubber (ESR) mixtures were systematically evaluated in the laboratory under one-dimensional and axisymmetric boundary conditions. ESR mixtures tested contained highly plastic, swelling clay from the Pierre shale formation and scrap tire rubber (STR) with nominal maximum particle sizes equal to approximately 6.7 or 19.0 mm. Compaction parameters were determined using standard ...