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This study investigates the effect of the type of superplasticizer on the Portland pozzolana cement (PPC)-and ordinary Portland cement (OPC)-based high-strength concrete’s mechanical performance. The experiment focuses on two distinct superplasticizers—polycarboxylate ether (PCE) and naphthalene sulfonate formaldehyde (NSF)—and evaluates their performance in improving key strength characteristics, including compressive, flexural, and split tensile strength. Comparative analysis of the test results highlights the role of admixture chemistry in optimizing concrete performance, offering insights for the selection of suitable superplasticizers in high-performance construction applications. Compressive strength tests revealed that PCE-based mixes outperformed NSF-based counterparts, achieving higher early and later-age strengths for both OPC and PPC systems. Similarly, flexural and split tensile strength tests conducted in accordance with IS 516:2021 showed that PCE-based mixes delivered superior performance, particularly in OPC-based concrete. The improved strength development is attributed to enhanced dispersion and hydration kinetics facilitated by the PCE superplasticizer. These results underscore the importance of superplasticizer composition in enhancing the structural efficiency of high-strength concrete, supporting the adoption of PCE-based admixtures for performance-driven applications in modern construction.

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Influence of Superplasticizer Type on the Mechanical Performance of OPC-and PPC-Based High-Strength Concrete

  • 会议论文

  • 发表日期：

    2026年

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  • G. S. Gana,
  • Shreelaxmi Prashanth,
  • Poornachandra Pandit,
  • Samprit,
  • Prajwal,
  • Spandan Kumar Hegde,
  • Prabhu Gurunathappa Sheelavantar,
  • Hamsashree

摘要

This study investigates the effect of the type of superplasticizer on the Portland pozzolana cement (PPC)-and ordinary Portland cement (OPC)-based high-strength concrete’s mechanical performance. The experiment focuses on two distinct superplasticizers—polycarboxylate ether (PCE) and naphthalene sulfonate formaldehyde (NSF)—and evaluates their performance in improving key strength characteristics, including compressive, flexural, and split tensile strength. Comparative analysis of the test results highlights the role of admixture chemistry in optimizing concrete performance, offering insights for the selection of suitable superplasticizers in high-performance construction applications. Compressive strength tests revealed that PCE-based mixes outperformed NSF-based counterparts, achieving higher early and later-age strengths for both OPC and PPC systems. Similarly, flexural and split tensile strength tests conducted in accordance with IS 516:2021 showed that PCE-based mixes delivered superior performance, particularly in OPC-based concrete. The improved strength development is attributed to enhanced dispersion and hydration kinetics facilitated by the PCE superplasticizer. These results underscore the importance of superplasticizer composition in enhancing the structural efficiency of high-strength concrete, supporting the adoption of PCE-based admixtures for performance-driven applications in modern construction.