Authors : R. Harish; Dr. K. Sharmiladevi; P. Vignesh

Volume/Issue : Volume 11 - 2026, Issue 5 - May

Google Scholar : https://tinyurl.com/3nn82f5c

Scribd : https://tinyurl.com/yh6t5e4s

DOI : https://doi.org/10.38124/ijisrt/26May438

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Abstract : Rapid growth in construction activities has led to the depletion of conventional construction materials, necessitating the development of sustainable alternatives. This study investigates the performance of cellular concrete incorporating natural sisal fibres and brick bat as partial replacement of coarse aggregate. Concrete specimens were prepared with varying fibre contents (0.5%, 1%, 1.5%, and 2%) along with 20% replacement of coarse aggregate by brick bat and the inclusion of foaming agent to produce lightweight cellular concrete. Mechanical properties such as compressive strength, split tensile strength, and flexural strength were evaluated at different curing periods. Results indicate that the addition of sisal fibres enhances tensile and flexural properties due to crack-bridging action, with optimum performance observed at 1%–1.5% fibre content. However, higher fibre content reduces workability and strength due to fibre clustering. The use of brick bat contributes to weight reduction, making the material suitable for lightweight applications. This study demonstrates that sisal fibre reinforced cellular concrete can serve as a sustainable and eco-friendly construction material.

Keywords : Cellular Concrete, Sisal Fibre, Brick Bat, Lightweight Concrete, Sustainable Materials.

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