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Corrosion of steel in chloride-contaminated calcium aluminate cement (CAC) mortar depending on its hydrations
https://orcid.org/0000-0002-1438-2893
Highlights Calcium aluminate cement (CAC) imposed the high resistance to steel corrosion. CAC had a lower chloride binding, but higher buffering to a pH in the matrix. CAC fall had the lower chloride profile at all depths due to a low surface chloride.
Abstract The present study concerns the resistance of calcium aluminate cement (CAC) against steel corrosion. Corrosion behaviour of steel, chloride binding/buffering and chloride transport were evaluated to predict the risk of steel corrosion. The CAC mortar had no corrosion of steel, irrespective of the curing temperature and CAC types, while ordinary Portland cement (OPC) indicated a severe corrosion on the steel surface. The chloride binding capacity for CAC was lower than OPC, but the buffering to a pH decrease was highly ranked in CAC paste. Moreover, ingress of chlorides at all depths was reduced in CAC, imposing the mitigated corrosion risk.
Corrosion of steel in chloride-contaminated calcium aluminate cement (CAC) mortar depending on its hydrations
https://orcid.org/0000-0002-1438-2893
Highlights Calcium aluminate cement (CAC) imposed the high resistance to steel corrosion. CAC had a lower chloride binding, but higher buffering to a pH in the matrix. CAC fall had the lower chloride profile at all depths due to a low surface chloride.
Abstract The present study concerns the resistance of calcium aluminate cement (CAC) against steel corrosion. Corrosion behaviour of steel, chloride binding/buffering and chloride transport were evaluated to predict the risk of steel corrosion. The CAC mortar had no corrosion of steel, irrespective of the curing temperature and CAC types, while ordinary Portland cement (OPC) indicated a severe corrosion on the steel surface. The chloride binding capacity for CAC was lower than OPC, but the buffering to a pH decrease was highly ranked in CAC paste. Moreover, ingress of chlorides at all depths was reduced in CAC, imposing the mitigated corrosion risk.
Corrosion of steel in chloride-contaminated calcium aluminate cement (CAC) mortar depending on its hydrations
https://orcid.org/0000-0002-1438-2893
Highlights Calcium aluminate cement (CAC) imposed the high resistance to steel corrosion. CAC had a lower chloride binding, but higher buffering to a pH in the matrix. CAC fall had the lower chloride profile at all depths due to a low surface chloride.
Abstract The present study concerns the resistance of calcium aluminate cement (CAC) against steel corrosion. Corrosion behaviour of steel, chloride binding/buffering and chloride transport were evaluated to predict the risk of steel corrosion. The CAC mortar had no corrosion of steel, irrespective of the curing temperature and CAC types, while ordinary Portland cement (OPC) indicated a severe corrosion on the steel surface. The chloride binding capacity for CAC was lower than OPC, but the buffering to a pH decrease was highly ranked in CAC paste. Moreover, ingress of chlorides at all depths was reduced in CAC, imposing the mitigated corrosion risk.
Corrosion of steel in chloride-contaminated calcium aluminate cement (CAC) mortar depending on its hydrations
Jun Yang, Hee (Autor:in) / Yong Ann, Ki (Autor:in) / Hwang, Woongik (Autor:in)
03.11.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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