Biomediated control of colloidal silica grouting using microbial fermentation
Michael G. Gomez,
Samantha T. Muchongwe,
Charles M. R. Graddy
Abstract:Colloidal silica grouting is a ground improvement technique capable of stabilizing weak problematic soils and achieving large reductions in soil hydraulic conductivities for applications including earthquake-induced liquefaction mitigation and groundwater flow control. In the conventional approach, chemical accelerants are added to colloidal silica suspensions that are introduced into soils targeted for improvement and the formation of a semi-solid silica gel occurs over time at a rate controlled by suspension… Show more
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