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@article{192267,
        author = {Pappu Swathilatha and K V Ashok Kumar},
        title = {Experimental Study on Improving Subgrade Properties with Bitumen Emulsion},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {9},
        pages = {830-834},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=192267},
        abstract = {Subgrade soil significantly influences the performance and durability of flexible pavements, and weak or moisture-susceptible soils often lead to settlement and premature failures. This study evaluates the effectiveness of bitumen emulsion as a stabilizing agent to improve subgrade properties through laboratory investigations. Various proportions of bitumen emulsion were blended with locally available soil and tested for changes in Atterberg limits, compaction characteristics, California Bearing Ratio (CBR), and unconfined compressive strength (UCS). The results showed reduced plasticity, improved compaction behavior, enhanced bearing capacity, and better resistance to moisture, with an optimum emulsion content yielding maximum strength improvement. The findings demonstrate that bitumen emulsion stabilization is a practical, economical, and sustainable method for enhancing subgrade performance and extending the service life of flexible pavements.},
        keywords = {Subgrade Soil, Bitumen Emulsion, Soil Stabilization, California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS), Atterberg Limits, Compaction Characteristics, Flexible Pavement.},
        month = {February},
        }