Characterization and Comparative Analysis of Natural, Sustainable Composite Material Properties Using Bio-Binder for Eco-Friendly Construction Applications

The utilization of waste materials like bio-binders and fine aggregates in construction is crucial for achieving environmentally sustainable building practices. By reusing these materials, we can significantly reduce waste production and preserve precious natural resources, making it a vital aspect of sustainable construction. This paper presents the experimental findings on the mechanical characteristics of using micro sand silica mixed with a bio-binder such as okra. The estimated mechanical properties that are discussed in this research include modulus, strength, and toughness. Okra with three different weight percentages (5, 10, and 15%) was mixed with four different micro-size particles (25, 250, 425, and 850 μm) and then compressed into a cylindrical sample. Okra demonstrated good adherence characteristics to sand silica particles, where the test results indicate that adding okra significantly affects the mechanical properties. Thermal analysis and SEM were employed to investigate the material degradation, surface morphology, and the internal structure of the composites. In general, it has been observed that at a particle size of 250 μm, the best mechanical properties have been achieved at a 15% weight ratio of the okra bio-binder.

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