Abstract
A new technique of ground improvement by microbial function has been recently proposed, as more eco-friendly technique than conventional one. Metabolic function of microbes produces carbon dioxide, which helps to generate calcium carbonate. Such a cementation process may be operated repeatedly as long as microbes’ function is active. In this study, a series of triaxial test was conducted in order to evaluate the recovery of shear-damaged cementation generated by those function in Toyoura sand specimens. It was found that stiffness of the bio-cemented specimen degraded by shear but it recovered when the microbes in the specimen were activated by grouting. [This abstract is not included in the PDF]
