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In recent decades, researchers have explored alternative material sources for cement as it is an environmental concern. Alkali-activated concrete (AAC) is an important material that meets the needs of the construction industry. In AAC mostly industrial by-product materials such as fly ash (FA) and ground granulated blast furnace slag (GGBS) have been used for its development. The main chemical components of fly ash and ground granulated blast furnace slag (GGBS) are silica and alumina which can play an important role in activation since they are responsible for the polymerization process in alkali activated concrete. This study mainly investigates the water-to-binder ratio effect on alkali-activated concrete for single and binary blended alkali-activated concrete systems. The mechanical behaviors such as compressive strength, split tensile strength, and flexural strength of AAC were carried out by casting cubes, cylinders, and beams, respectively. It was observed in this study that 100% GGBS as a binder with ambient curing has attained the maximum strength in all aspects with a lower water-to-binder ratio (w/b).

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Influence of Water/Binder Ratio on the Mechanical Behavior of Alkali-Activated Concrete

  • 会议论文

  • 发表日期：

    2026年

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  • Chirag Thummar,
  • B. Kondraivendhan,
  • Chetankumar Modhera

摘要

In recent decades, researchers have explored alternative material sources for cement as it is an environmental concern. Alkali-activated concrete (AAC) is an important material that meets the needs of the construction industry. In AAC mostly industrial by-product materials such as fly ash (FA) and ground granulated blast furnace slag (GGBS) have been used for its development. The main chemical components of fly ash and ground granulated blast furnace slag (GGBS) are silica and alumina which can play an important role in activation since they are responsible for the polymerization process in alkali activated concrete. This study mainly investigates the water-to-binder ratio effect on alkali-activated concrete for single and binary blended alkali-activated concrete systems. The mechanical behaviors such as compressive strength, split tensile strength, and flexural strength of AAC were carried out by casting cubes, cylinders, and beams, respectively. It was observed in this study that 100% GGBS as a binder with ambient curing has attained the maximum strength in all aspects with a lower water-to-binder ratio (w/b).