The present work explores the potential of bio-enzymatic stabilization on two types of soil with extreme characteristics namely, black cotton soil and lateritic soil. Bio-modification was achieved by blending the selected soils with terrazyme. To assess the permanency in strength laboratory tests were carried out for two different dosages (150ml/m~3 and 250 ml/m~3) as well as curing periods (7, 14, and 28 days) and the results compared. The current work concentrates in understanding the variation in UCS, bearing ratio values, secant modulus, and improvement factor of enzyme treated soils with respect to ageing. In case of bio-modified black cotton soil the improvement factor increased up to 216% when compared with that of laterite soil. Further, the experimental results also indicated that bio-modification was more effective at lower enzyme dosage and increased curing periods. From the experimental investigations the potential of enzyme in achieving economic feasibility was also comprehended.
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机译：本工作探讨了在具有极端特征的两种类型的土壤（黑棉土壤和红土土壤）上生物酶稳定的潜力。通过将选定的土壤与土壤酶混合来实现生物改性。为了评估强度的持久性，对两种不同剂量（150ml / m〜3和250 ml / m〜3）以及固化时间（7、14和28天）进行了实验室测试，并比较了结果。当前的工作集中在理解UCS的变化，承载比值，割线模量和酶处理土壤相对于老化的改善因子。在生物改性的黑棉土壤中，与红土土壤相比，改良因子增加了高达216％。此外，实验结果还表明，在较低的酶用量和增加的固化时间下，生物改性更有效。通过实验研究，还了解了酶在实现经济可行性方面的潜力。
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