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<p>Concrete is the most paramount material used in various domestic and commercial constructions worldwide. However, the rapid depletion of natural resources, extensive energy consumption, and environmental degradation associated with cement production have spurred researchers to explore viable alternatives for partial or complete cement substitution. Additionally, the disposal of agro-industrial and solid waste is a serious issue in many developing countries. Every year, the sugar industry produces substantial quantities of bagasse waste. Sugarcane bagasse ash (SCBA), a byproduct rich in amorphous silica, exhibits pozzolanic characteristics, making it a promising sustainable alternative material. This study investigates the potential of SCBA as a partial cement replacement in binary blended concrete and its impact on concrete performance. SCBA was characterized through X-ray diffraction (XRD) for mineral identification, scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy for microstructural and elemental analysis. Experimental investigations were conducted in accordance with IS standards, considering cement replacement levels ranging from 5 to 30%, with a constant water-binder ratio of 0.35. The study evaluated the influence of SCBA on the fresh and hardened properties of concrete, including workability, compressive strength, flexural strength, split tensile strength, durability, and microstructure. The results indicate that treated SCBA exhibits improved pozzolanic activity compared to untreated SCBA, significantly enhancing the hydration process and microstructural densification. The optimal performance was observed at a 15% replacement level. In this study, SCBA was treated through thermal calcination at 650&#xa0;°C and mechanical grinding, with no chemical modification applied. Furthermore, a correlation regression analysis was conducted to assess the relationship between compressive strength and different properties of SCBA concrete. The findings confirm that SCBA is a viable supplementary cementitious material (SCM) that promotes resource efficiency, waste utilization, and carbon footprint reduction, supporting the development of sustainable concrete solutions.</p>

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Evaluation of the properties of binary blended cement concrete with partial cement replacement by sugarcane bagasse ash

  • 期刊论文

  • 发表日期：

    2025年9月25日

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  • Pratyush Kumar Goyal,
  • Meena Murmu

摘要

Concrete is the most paramount material used in various domestic and commercial constructions worldwide. However, the rapid depletion of natural resources, extensive energy consumption, and environmental degradation associated with cement production have spurred researchers to explore viable alternatives for partial or complete cement substitution. Additionally, the disposal of agro-industrial and solid waste is a serious issue in many developing countries. Every year, the sugar industry produces substantial quantities of bagasse waste. Sugarcane bagasse ash (SCBA), a byproduct rich in amorphous silica, exhibits pozzolanic characteristics, making it a promising sustainable alternative material. This study investigates the potential of SCBA as a partial cement replacement in binary blended concrete and its impact on concrete performance. SCBA was characterized through X-ray diffraction (XRD) for mineral identification, scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy for microstructural and elemental analysis. Experimental investigations were conducted in accordance with IS standards, considering cement replacement levels ranging from 5 to 30%, with a constant water-binder ratio of 0.35. The study evaluated the influence of SCBA on the fresh and hardened properties of concrete, including workability, compressive strength, flexural strength, split tensile strength, durability, and microstructure. The results indicate that treated SCBA exhibits improved pozzolanic activity compared to untreated SCBA, significantly enhancing the hydration process and microstructural densification. The optimal performance was observed at a 15% replacement level. In this study, SCBA was treated through thermal calcination at 650 °C and mechanical grinding, with no chemical modification applied. Furthermore, a correlation regression analysis was conducted to assess the relationship between compressive strength and different properties of SCBA concrete. The findings confirm that SCBA is a viable supplementary cementitious material (SCM) that promotes resource efficiency, waste utilization, and carbon footprint reduction, supporting the development of sustainable concrete solutions.