A study on using nano calcite as the accelerated agent in microbially induced calcium carbonate precipitation for soil-sand bio-cementation

Abstract Bio-cementation through bacterial mineralization can be considered an “eco-friendly” solution for soft or loose sandy soils, particularly in ground slopes and high rainfall zones, to achieve sustainable development goals. Using urelytical bacteria with the ability decompose urea calcium carbonate precipitation selected as primary agent bio-cementation process. This study clarifies effects of adding nano calcite nucleation sites enhancing Vietnam-isolated bacteria. Both microstructure MICP capacity were studied. Microscopic, SEM/EDS, X-ray diffraction data used characterize identify mineral compositions. Also, a simulated model wind flow set up evaluate erosion resistance sand samples.