Evaluating Biosedimentation for Strength Improvement in Acidic Soil

Marine clay soils are problematic in the construction industry when they subjected to loads. When these loaded, lose their structure. This leads soil being unable withstand loads of any magnitude without exhibiting significant, permanent deformations. In order stabilize marine soil, new methods for improvement were built upon biogrouting by incorporating physical, biological and chemical treatments into soil. However, biggest challenge this method is bacteria migration through medium. To overcome issue, electrokinetic phenomenon can be utilized alongside prevent migration. regard, present study applied electrobiogrouting stabilization investigate acidic with a pH 3.69. accomplish this, two large-scale physical models dimensions 500 × 300 1200 mm fabricated examine influence different treated distances between inlet outlet—450 (D45) 600 (D60)—on stability It was observed that shear strength improved significantly. The at D45 distance increased from 3.65 kPa (untreated soil) 28.14 (treated soil). increasing distance. addition, compressibility electrical conductivity reduced significantly, Atterberg limits significantly enhanced OH OL. reasons enhancement formation CaCO3, which filled voids, water content reduced. address issues aims minimize high cost special foundation system use non-environmentally friendly materials such as calcium-based binders, aside reduction deformations caused loading. findings used soil’s geotechnical behavior general.