Expansive soils are problematic due to their swell—shrinkage behavior and low compressive strength. They are modified generally with additives such as lime, fly ash, and various other inorganic and organic materials. Chemical stabilization treatments can improve expansive soil properties for its reuse in geotechnical applications. The present study investigates the properties of two types of subgrade soil treated with Lime and compacted by three different methods in the laboratory. The study is mainly focused to bring out the effect of different methods of compaction on the unconfined compressive strength of Lime treated soils and untreated soils. Laboratory investigation included pH, Atterberg limits, cation exchange capacity (CEC), compaction, unconfined compression strength (UCS), California Bearing Ratio (CBR), Scanning Electron Micrographs (SEM) and EDAX before and after lime treatment. Tests were performed on lime treated soils (2, 4, 6 and 8% of lime). The soil samples for unconfined compressive strength test were prepared by static, dynamic and roller compaction methods in the laboratory. Roller compaction was performed using indigenously fabricated Roller compactor cum Rutting Analyzer (RCRA). The results indicate that dry unit weight and UCS of roller compacted lime treated soil is lower than that of dynamic compacted soil. However, dry unit weight and UCS of lime treated roller compacted soil are closer to that of statically compacted soil. Cation exchange capacity of both soils before and after treatment with lime were examined, CEC reduced with increase in lime content.

膨胀土因其膨胀-收缩行为和低抗压强度而存在问题。它们通常用石灰、粉煤灰和各种其他无机和有机材料等添加剂进行改性。化学稳定处理可以改善膨胀土的特性，以便在岩土工程应用中重复使用。本研究调查了在实验室中用石灰处理并通过三种不同方法压实的两种类型的路基土壤的特性。研究主要侧重于揭示不同压实方法对石灰处理土和未处理土的无侧限抗压强度的影响。实验室调查包括 pH、阿特伯格极限、阳离子交换容量 (CEC)、压实、无侧限压缩强度 (UCS)、加利福尼亚承载比 (CBR)、石灰处理前后的扫描电子显微照片 (SEM) 和 EDAX。对石灰处理过的土壤（2%、4%、6% 和 8% 的石灰）进行了测试。无侧限抗压强度试验土样在室内采用静压、动压和碾压法制备。使用本地制造的碾压机和车辙分析仪 (RCRA) 进行碾压。结果表明，碾压石灰处理土的干重和UCS低于强夯土。然而，石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。对石灰处理过的土壤（2%、4%、6% 和 8% 的石灰）进行了测试。无侧限抗压强度试验土样在室内采用静压、动压和碾压法制备。使用本地制造的碾压机和车辙分析仪 (RCRA) 进行碾压。结果表明，碾压石灰处理土的干重和UCS低于强夯土。然而，石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。对石灰处理过的土壤（2%、4%、6% 和 8% 的石灰）进行了测试。无侧限抗压强度试验土样在室内采用静压、动压和碾压法制备。使用本地制造的碾压机和车辙分析仪 (RCRA) 进行碾压。结果表明，碾压石灰处理土的干重和UCS低于强夯土。然而，石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。实验室中的动态和碾压方法。使用本地制造的碾压机和车辙分析仪 (RCRA) 进行碾压。结果表明，碾压石灰处理土的干重和UCS低于强夯土。然而，石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。实验室中的动态和碾压方法。使用本地制造的碾压机和车辙分析仪 (RCRA) 进行碾压。结果表明，碾压石灰处理土的干重和UCS低于强夯土。然而，石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。石灰处理过的碾压土的干单位重量和 UCS 更接近于静态压实土。检查了石灰处理前后两种土壤的阳离子交换能力，CEC随着石灰含量的增加而降低。