Effect of Scallop Powder Addition on MICP Treatment of Amorphous Peat

Peat is one of the most challenging and problematic soils in fields geotechnical environmental engineering. The critical problems related to peat are extremely low strength high compressibility, resulting poor inhabitancy infrastructural developments their vicinity. Thus far, were stabilized using Portland cement; however, production cement causes significant emission greenhouse gases, which not environmentally desirable. Microbial-induced carbonate precipitation (MICP) an innovative technique for improving mechanical properties soil through potentially friendly processes. This article presents a laboratory study carried out with aim investigating viability effect scallop shell powder (SSP) on enhancing MICP-treated amorphous peat. hypothesis was that distribution SSP (as-derived calcite particles) would (i) provide more nucleation sites precipitates (ii) increase connectivity MICP bridges facilitate mineral skeleton peat, accompanied by its compressive strength. Specimens treated at varying combinations reagents, improvement comprehensively assessed series unconfined compression tests supported microscale chemical analyses such as scanning electron microscopy, energy-dispersive X-ray analysis, diffraction analysis. outcomes showed incorporating treatment be promising approach treat soils. proposed could improve over 200% after 7-day curing period, while conventional exhibit any improvements.