Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete

Autor:	Yifei Cui, Shihao Qu, Kaikai Gao, Biruk Hailu Tekle, Jiuwen Bao, Peng Zhang
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	alkali-activated concrete steel bar pull-out test steel corrosion bond strength General Materials Science
Zdroj:	Materials; Volume 16; Issue 6; Pages: 2262
ISSN:	1996-1944
DOI:	10.3390/ma16062262
Popis:	Alkali-activated slag concrete (ASC) is regarded as one of the most promising sustainable construction materials for replacing ordinary Portland cement concrete (OPC) due to its comparable strength and outstanding durability in challenging environments. In this study, the corrosion of steel bars embedded in ASC and OPC was studied by means of an electrically accelerated corrosion test of steel bars in concrete. Meanwhile, the bond performance of the corroded steel bars embedded in ASC was tested and compared with corresponding OPC groups. The results showed that ASC and OPC behaved differently in terms of bond deterioration. The high chemical resistance of ASC decreased the corrosion of steel bars and, thus, increased the residue bond strength and the bond stiffness.
Databáze:	OpenAIRE
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