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Abstract ▼ AI-Helper

In this paper, carbonation behavior in cold joint concrete is analyzed considering binder types and tensile/compressive loading. Referred to the case without loading effect, the carbonation velocity coefficient decreases by -12.0~-4.7 % due to the pore densification in 30 % of the compressive loadin...

In this paper, carbonation behavior in cold joint concrete is analyzed considering binder types and tensile/compressive loading. Referred to the case without loading effect, the carbonation velocity coefficient decreases by -12.0~-4.7 % due to the pore densification in 30 % of the compressive loading condition. Regardless of binder type, GGBFS and OPC concrete with cold joint have insignificant variations of -1.7~5.8 % of carbonation velocity coefficient by loading conditions, however they have higher carbonation velocity coefficient than concrete without cold joint by 9.7~53.3 %, which shows that in cold joint areas, carbonation is accelerated. So, Consideration of that is more reasonable in durability design for cold joint concrete under concentrated loading.

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