What question did this study set out to answer?

The aim is to enhance the sustainability and mechanical performance of fly ash-based Reactive Powder Concrete (RPC) by incorporating GGBFS.

May 22, 2026

Fly ash-based Reactive Powder Concrete with coarse aggregate and GGBFS: Mechanical properties and sustainability

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Randomized trial investigates mechanical properties of fly ash-based concrete with GGBFS, indicating potential for sustainable infrastructure.

The aim is to enhance the sustainability and mechanical performance of fly ash-based Reactive Powder Concrete (RPC) by incorporating GGBFS.
Incorporated GGBFS at levels of 0-22% alongside fixed proportions of fly ash (38%) and silica fume (8%).
Evaluated mechanical properties such as flowability, compressive strength, and flexural strength under standard curing conditions.
Analyzed the carbon efficiency and workability as a function of GGBFS replacement levels.
Achieved flow values of 203-225 mm and 28-day compressive strengths between 123.9 and 143.5 MPa.
Flexural strengths ranged from 20.1 to 24.4 MPa; moderate GGBFS improved workability and strength significantly.
Higher GGBFS levels reduced the carbon footprint, suggesting enhanced sustainability.

Han et al. (2026) studied this question.

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Randomized trial investigates mechanical properties of fly ash-based concrete with GGBFS, indicating potential for sustainable infrastructure.