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@article{207332,
        author = {Anusha Kolapaka and Dr. Shubash Chandra Bose},
        title = {Performance Evaluation of Sustainable Self Compacting Concrete Using Turitella Shell Waste},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {3},
        pages = {264-269},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=207332},
        abstract = {The disposal of seashell waste and the intensive consumption of natural construction materials motivate the development of alternative constituents for concrete. This experimental study evaluates processed Turritella shell powder as a partial replacement for fine aggregate in M40 self-compacting concrete. Five mixtures containing 0, 5, 10, 15, and 20 percent Turritella were assessed. Fresh-state performance was measured using slump-flow, T50-time, V-funnel, and L-box tests, while compressive, flexural, and split-tensile strengths were determined after 7, 14, and 28 days of curing. Increasing the Turritella content raised slump flow from 650 to 690 mm and improved the L-box ratio from 0.86 to 0.94. T50 and V-funnel times increased moderately, indicating a greater final spread accompanied by a slightly slower rate of flow. At 28 days, the mixture containing 20 percent Turritella achieved the highest compressive strength of 48.80 MPa and flexural strength of 4.88 MPa. These values exceeded the control by only 0.62 and 0.21 percent, respectively, and therefore represent practical equivalence rather than substantial enhancement. The maximum split-tensile strength of 5.96 MPa was recorded at 10 percent Turritella, corresponding to an improvement of 5.86 percent over the control. The findings demonstrate that processed Turritella shell powder can be incorporated into M40 self-compacting concrete without materially reducing its overall mechanical performance. A 20 percent content produced the strongest combined fresh, compressive, and flexural response, whereas 10 percent was preferable when split-tensile strength was prioritized.},
        keywords = {self-compacting concrete; Turritella shell powder; seashell waste; sustainable concrete; compressive strength; split-tensile strength.},
        month = {August},
        }