The prediction of alkali-silica reaction based on the alkali-Al ratio of pore solution using thermodynamic modeling

Shihua Wei,Keren Zheng,Lou Chen,Shenghao Zuo,Xiaofeng Zhou

CONSTRUCTION AND BUILDING MATERIALS（2023）

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摘要

•ASR expansion increases with the Alkali-Al ratio of pore solution and the reactivity of the used aggregates.•It is feasible to predict ASR risk based on the Alkali-Al ratio of pore solution using thermodynamic modeling.•A ternary diagram was proposed to evaluate the potential ASR risk for PC-SF/MK/FA/GGBS-GP blends.•The efficacy of various SCMs, including MK, FA, GGBS, SF, and GP on mitigating ASR was evaluated.

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关键词

Alkali-silica reaction,the Alkali-Al ratio,Aluminate hydrates,Alkali concentration,Thermodynamic modeling

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