What question did this study set out to answer?

This research aims to evaluate the bond performance of alkali-activated fly ash/slag concrete and understand the impact of corrosion and microstructure.

July 5, 2026Magazine of Concrete Research

Bonding performance of reinforced alkali-activated fly ash/slag concrete: insights from corrosion and interfacial microstructure

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This research aims to evaluate the bond performance of alkali-activated fly ash/slag concrete and understand the impact of corrosion and microstructure.
Conducted pull-out tests to assess bond behavior of AAFSC under varying corrosion levels.
Used scanning electron microscopy and energy-dispersive spectroscopy to characterize interface properties.
AAFSC specimens exhibited higher bond strength than OPC concrete in the pre-peak region.
Post-peak, AAFSC showed more brittle behavior with lower residual bond strength, indicating reduced energy dissipation capacity.
Degradation linked to microstructural mismatches between N-A-S-H and C-A-S-H gel phases at the steel interface.

Authors

FZFeng ZhangTianjin Geothermal Exploration, Development and Design Institute (China)SYShangtong YangUniversity of Strathclyde HJHan JiangUniversity of Strathclyde

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Implication

Randomized trial investigates bond performance in alkali-activated concrete, suggesting improvements in sustainability.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a49f464f5d1d45b287ffdee https://doi.org/10.1680/jmacr.25.00560

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Bonding performance of reinforced alkali-activated fly ash/slag concrete: insights from corrosion and interfacial microstructure

Key Points

Discussion

Implication

Cite This Study

Bonding performance of reinforced alkali-activated fly ash/slag concrete: insights from corrosion and interfacial microstructure

Key Points

Discussion

Implication

Cite This Study

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