Peat is known as problematic ground with low bearing capacity and extensively high compressibility. Bio-cementation or commonly known as microbial-induced calcite precipitation (MICP) has been recently introduced as a ground improvement alternative for peat under waterlogged condition. Using isolated bacteria strains P19 and P21 from tropical peat, it is found that unconfined compression strength (UCS) increases with bacteria concentration at a reducing rate. A maximum unconfined compressive strength of 82.05 kPa was measured with bacteria strain P21 at 10⁸ CFU/mL. For the range of cementation reagent varying from 0.1 to 4.0 mol/kg, the largest strength improvement occurred at 1 mol/kg and 2 mol/kg using indigenous bacteria and bacteria strain P21, respectively, for peat with sand content of 25%. At 4.0 mol/kg, the cementation reagent has detrimental effect to MICP resulting in significant reduction in strength. Due to MICP, the UCS of peat increases with sand content. Calcium carbonate precipitation results in a reduction of permeability and an increment of strength of peat–sand mixture under a submerged condition up to 28 days.

泥炭被称为具有低承载能力和广泛高压缩性的问题地面。最近引入了生物胶结或通常称为微生物诱导的方解石沉淀 (MICP)，作为浸水条件下泥炭的地面改良替代方案。使用从热带泥炭中分离的菌株 P19 和 P21，发现无侧限抗压强度 (UCS) 随着细菌浓度的降低而增加。^{用细菌菌株 P21 在 10 8}测量的最大无侧限抗压强度为 82.05 kPa CFU/毫升。对于从 0.1 到 4.0 mol/kg 变化的胶结剂范围，对于含沙量为 25% 的泥炭，分别使用本地细菌和菌株 P21 时，强度提高最大的是 1 mol/kg 和 2 mol/kg。在 4.0 mol/kg 时，胶结剂对 MICP 有不利影响，导致强度显着降低。由于 MICP，泥炭的 UCS 随着沙子含量的增加而增加。在长达 28 天的淹没条件下，碳酸钙沉淀导致渗透性降低和泥炭砂混合物强度增加。