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<p>Incorporating alternative materials in construction reduces costs and minimizes environmental impacts associated with cement production and bottom ash disposal. This study investigates the use of bamboo fiber (BF) and coal bottom ash (CBA) as sustainable components in construction materials. Alkali-treated BF was added in varying proportions (0.5–2.5%) to improve mechanical properties, while CBA replaced 10% of cement in all mixes. Sodium carboxymethyl cellulose (CMC) was used as a dispersing agent (1%), and copper slag (CS) replaced 50% of fine aggregate. Taguchi method optimized the experimental design, while artificial neural networks (ANN) validated the results. Performance metrics, including compressive strength, water absorption, and dry density, were tested on cubes, while flexural strength was assessed on prisms. The optimized mix identified through Taguchi analysis showed significant improvements, achieving up to 79.4% higher compressive strength, 83.9% greater flexural strength, 17.3% lower dry density, and a 68.3% reduction in water absorption compared to standard mortar. These findings demonstrate the potential of CBA as a partial cement substitute and BF as a reinforcing additive, offering durable, cost-effective, and eco-friendly construction solutions.</p>

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Sustainable mortar design: optimizing performance with bamboo fiber and coal bottom ash using Taguchi and ANN

  • 期刊论文

  • 发表日期：

    2025年7月23日

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  • Prem Kumar Vagestan,
  • Manikandan Periyasamy,
  • Vinodhkumar Shanmugasundaram,
  • Talapa Reddy Suman Kumar,
  • K. Arun Kumar,
  • A. Tamilarasan

摘要

Incorporating alternative materials in construction reduces costs and minimizes environmental impacts associated with cement production and bottom ash disposal. This study investigates the use of bamboo fiber (BF) and coal bottom ash (CBA) as sustainable components in construction materials. Alkali-treated BF was added in varying proportions (0.5–2.5%) to improve mechanical properties, while CBA replaced 10% of cement in all mixes. Sodium carboxymethyl cellulose (CMC) was used as a dispersing agent (1%), and copper slag (CS) replaced 50% of fine aggregate. Taguchi method optimized the experimental design, while artificial neural networks (ANN) validated the results. Performance metrics, including compressive strength, water absorption, and dry density, were tested on cubes, while flexural strength was assessed on prisms. The optimized mix identified through Taguchi analysis showed significant improvements, achieving up to 79.4% higher compressive strength, 83.9% greater flexural strength, 17.3% lower dry density, and a 68.3% reduction in water absorption compared to standard mortar. These findings demonstrate the potential of CBA as a partial cement substitute and BF as a reinforcing additive, offering durable, cost-effective, and eco-friendly construction solutions.