Performance Evaluation of Bacteria Immobilized in Natural Fibers for Autonomous Healing in Concrete

Abstract

The aim of this study was to evaluate performance of novel ureolytic bacterial species, that can self-heal cracks by calcium carbonate precipitation. Jute fiber is used as a potential immobilizer for bacteria in self-healing. Six different formulations are formed, and mechanical strength tests are carried out. Visual observations of self-healing indicate the surface sealing of cracks. MATLAB image processing indicates the average percentage of CaCO3 precipitation in the concrete samples.