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Influence of sugarcane bagasse ash (SCBA) on the mechanical behaviour of sustainable self-compacting concrete

By: Contributor(s): Publication details: Thane ACC LTD 2024Edition: Vol.98(12), DecDescription: 44-52pSubject(s): Online resources: In: Indian Concrete Journal - ICJSummary: Developing countries like India need to address the utilization of agroindustrial waste such as sugarcane bagasse ash (SCBA) to tackle environmental concerns and reduce the consumption of expensive raw materials such as cement for making selfcompacting concrete (SCC). An attempt has been made to partially replace ordinary Portland cement by employing raw SCBA as one of the constituent materials in the SCC. The raw SCBA in SCC mixtures was varied in between 7.5 to 25 % and the hardened concrete was subjected to mechanical and physical tests. The compressive strength of SCC was found to increase with the curing period and the highest values were recorded after 28 days. Further, the ultrasonic pulse velocity test revealed excellent quality and high structural integrity for concrete having 25 % SCBA and cured at 56 days due to high density and strong intergranular bonding. The rapid chloride ion penetration test showed better resistance to chloride ion penetration. Overall the study suggests the employability of agricultural waste such as raw SCBA as potential cement replacement material in making SCC in the construction industry.
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Developing countries like India need to address the utilization of agroindustrial waste such as sugarcane bagasse ash (SCBA) to tackle environmental concerns and reduce the consumption of expensive raw materials such as cement for making selfcompacting concrete (SCC). An attempt has been made to partially replace ordinary Portland cement by employing raw SCBA as one of the constituent materials in the SCC. The raw SCBA in SCC mixtures was varied in between 7.5 to 25 % and the hardened concrete was subjected to mechanical and physical tests. The compressive strength of SCC was found to increase with the curing period and the highest values were recorded after 28 days. Further, the ultrasonic pulse velocity test revealed excellent quality and high structural integrity for concrete having 25 % SCBA and cured at 56 days due to high density and strong intergranular bonding. The rapid chloride ion penetration test showed better resistance to chloride ion penetration. Overall the study suggests the employability of agricultural waste such as raw SCBA as potential cement replacement material in making SCC in the construction industry.

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