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Journal of Construction Engineering, Technology & Management Original Research

Performance Evaluation of Concrete with Binary and Ternary Blends of Fly Ash, Silica Fume, and Fiber Reinforcement

  1. Neelesh Nagle
  2. Harsh Rathore

Abstract

This study evaluates the effect of ground granulated blast furnace slag (GGBS) as a partial replacement for cement on the mechanical properties of concrete, focusing on compressive and split tensile strength. Concrete mixes were prepared with GGBS replacement levels of 0%, 25%, and 50% and subjected to different curing methods, including water curing, steam curing, and conceal curing. These curing methods were selected to investigate their impact on hydration, strength development, and long-term performance. The results indicate that incorporating 25% GGBS provides an optimal balance between strength and sustainability, offering improvements in durability and reduced environmental impact, whereas a 50% replacement reduces both compressive and tensile strength due to slower pozzolanic reactions and insufficient early-age strength. Among the curing methods, concealed curing exhibited the highest strength development due to enhanced hydration and internal moisture retention, which promotes the continued reaction of cementitious materials, while steam curing led to the lowest strength values, likely as a result of rapid moisture loss and limited hydration. The split tensile strength followed a similar trend, confirming the beneficial role of GGBS in enhancing bond strength and crack resistance through improved matrix density and reduced porosity. The study highlights the significance of appropriate curing techniques and optimal GGBS content in achieving durable and high-performance concrete, which is essential for modern construction practices. These findings contribute to the sustainable use of industrial by-products in construction while maintaining structural integrity, promoting eco-friendly construction materials, and encouraging the adoption of green building technologies in the civil engineering sector.

Keywords

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