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<p>The growing carbon footprint of the construction industry, which is largely due to Ordinary Portland Cement production, demands for the development of new sustainable, high-performance alternatives. This research assesses a ternary geopolymer concretesystem using ground granulated blast furnace slag (GGBS), fly ash, and sugarcane bagasse ash (SCBA). The studies examined how different alkaline activator molarities (8&#xa0;M, 10&#xa0;M, and 12&#xa0;M) and different SCBA replacement percentages (0–20%) impacted experimental results. The research found that when either molarity or SCBA content was increased, flowability decreased and setting times were accelerated. However, the resulting changes in both molarity and SCBA content also resulted in a significant improvement to the mechanical and durability characteristics of the hardened concrete. The highest mechanical performance was observed at the 12 Molar activator series. The optimal replacement ratio of SCBA was found to be 10%, where the water absorption was the lowest (2.58%), and the resistance to acid and sulfate attacks were improved. High molarity mixes showed excellent ultrasonic pulse velocity (UPV) values indicating high quality of the internal structure of these mixes. Hence, this study is very important to researchers and engineers, as it offers a detailed roadmap for utilizing agricultural and industrial waste materials to manufacture high-strength structural concrete.</p>

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Experimental investigation on the fresh, mechanical, and durability characteristics of ternary geopolymer concrete incorporating sugarcane bagasse ash and GGBS under varying alkali molarities

  • 期刊论文

  • 发表日期：

    2026年4月6日

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  • Vedhasakthi K ,
  • Kamal B,
  • Magudeaswaran P,
  • Ramesh Kannan J,
  • Siva Siddharth

摘要

The growing carbon footprint of the construction industry, which is largely due to Ordinary Portland Cement production, demands for the development of new sustainable, high-performance alternatives. This research assesses a ternary geopolymer concretesystem using ground granulated blast furnace slag (GGBS), fly ash, and sugarcane bagasse ash (SCBA). The studies examined how different alkaline activator molarities (8 M, 10 M, and 12 M) and different SCBA replacement percentages (0–20%) impacted experimental results. The research found that when either molarity or SCBA content was increased, flowability decreased and setting times were accelerated. However, the resulting changes in both molarity and SCBA content also resulted in a significant improvement to the mechanical and durability characteristics of the hardened concrete. The highest mechanical performance was observed at the 12 Molar activator series. The optimal replacement ratio of SCBA was found to be 10%, where the water absorption was the lowest (2.58%), and the resistance to acid and sulfate attacks were improved. High molarity mixes showed excellent ultrasonic pulse velocity (UPV) values indicating high quality of the internal structure of these mixes. Hence, this study is very important to researchers and engineers, as it offers a detailed roadmap for utilizing agricultural and industrial waste materials to manufacture high-strength structural concrete.