Engineering Commons^™

Evaluating The Effectiveness Of Soil-Native Bacteria In Precipitating Calcite To Stabilize Expansive Soils, Bhaskar C. S. Chittoori, Malcolm Burbank, Md Touhidul Islam

Civil Engineering Faculty Publications and Presentations

The use of chemical additives to stabilize expansive soils is a common practice. However, the environmental concerns associated with the greenhouse gas generation during the production of these chemicals have launched engineers in search of sustainable stabilization alternatives. Microbial induced calcite precipitation (MICP) is a bio-cementation technique that could be a potential solution to this problem. Typically, MICP is achieved via bio-augmentation; however, bio-stimulation was argued to be a more realistic alternative due to its field implementation potential. Hence, in this research study, two expansive soils with varying plasticity characteristics were examined to understand the potential of MICP in treating …