Scholarlink

<p>The substantial carbon footprint of the cement industry necessitates the development of innovative low-carbon alternatives for concrete production. This study introduces a novel combination of sugarcane bagasse ash (SCBA) and alccofine (AF) as synergistic supplementary cementitious materials (SCMs) in high-strength self-compacting concrete (HSSCC), uniquely formulated with crushed-stone sand as a fine aggregate. Unlike prior studies that examined these SCMs in isolation or in conventional mixes, this study explored their integrated effect on the fresh, mechanical, and microstructural properties of high-strength self-compacting concrete of grade M60. The 10S30A and 20S20A mixtures demonstrated enhanced flowability at the optimized superplasticizer dosages. By day 28, the 10S30A mix outperformed the control, achieving a 12.04% increase in compressive strength, a 10.82% increase in split tensile strength, and a 1.03% improvement in ultrasonic pulse velocity (UPV). Scanning electron microscopy (SEM) revealed denser microstructures with abundant calcium silicate hydrate, while X-ray diffraction (XRD) patterns confirmed the formation of beneficial phases, including rosenhahnite and stratlingite. These findings establish the SCBA-alccofine synergy as a viable pathway for durable, high-performance, and sustainable concrete infrastructure.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Pozzolanic synergy of sugarcane bagasse ash and alccofine in high strength self-compacting concrete: mechanical advancements and microstructural transformations

  • 期刊论文

  • 发表日期：

    2026年1月27日

查看全文
  • Amala Joseph,
  • S. Balamurugan

摘要

The substantial carbon footprint of the cement industry necessitates the development of innovative low-carbon alternatives for concrete production. This study introduces a novel combination of sugarcane bagasse ash (SCBA) and alccofine (AF) as synergistic supplementary cementitious materials (SCMs) in high-strength self-compacting concrete (HSSCC), uniquely formulated with crushed-stone sand as a fine aggregate. Unlike prior studies that examined these SCMs in isolation or in conventional mixes, this study explored their integrated effect on the fresh, mechanical, and microstructural properties of high-strength self-compacting concrete of grade M60. The 10S30A and 20S20A mixtures demonstrated enhanced flowability at the optimized superplasticizer dosages. By day 28, the 10S30A mix outperformed the control, achieving a 12.04% increase in compressive strength, a 10.82% increase in split tensile strength, and a 1.03% improvement in ultrasonic pulse velocity (UPV). Scanning electron microscopy (SEM) revealed denser microstructures with abundant calcium silicate hydrate, while X-ray diffraction (XRD) patterns confirmed the formation of beneficial phases, including rosenhahnite and stratlingite. These findings establish the SCBA-alccofine synergy as a viable pathway for durable, high-performance, and sustainable concrete infrastructure.