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This research aims to optimize a one-part geopolymer roller-compacted concrete using 100% pavement-derived recycled aggregate.

August 3, 2026Results in EngineeringOpen Access

Multi-Objective Optimization of Ambient-Cured One-Part Geopolymer Roller-Compacted Concrete Incorporating 100% Pavement-Derived Recycled Concrete Aggregate

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Randomized trial optimized mechanical performance in geopolymer concrete, suggesting potential for pavement applications.

This research aims to optimize a one-part geopolymer roller-compacted concrete using 100% pavement-derived recycled aggregate.
Developed a dry-mixed binder system with fly ash and GGBS activated by a dry alkaline activator.
Utilized a three-factor Box-Behnken design to evaluate effects on compressive and flexural strengths.
Conducted confirmation tests to validate predicted performance metrics.
Optimal mix comprised 39.73% GGBS, 14.78% DAA, and a water-to-binder ratio of 0.34.
Predicted Vebe time was 40.06 s, with compressive strength of 56.51 MPa and flexural strength of 5.47 MPa.
Confirmation tests yielded results closely matching predictions, with errors below 3%.

Tran et al. (2026) studied this question.

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