Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Chloride ingress in cracked concrete- a literature review
Chloride induced corrosion of reinforcing steel is one of the most important mechanisms causing deterioration of reinforced concrete structures and the need for their premature repair or replacement. Significant research efforts have, therefore, been undertaken in recent decades, trying to quantify these effects. Yet, most of the studies and recommendations are based on the assumption of sound, uncracked concrete. However, reinforced concrete structures are frequently cracked, due to different causes, such as shrinkage, thermal effects, and loading. Cracking of the reinforced concrete structural members alters the local transport properties of the concrete cover, and allows rapid ingress of chloride ions and onset of corrosion. In the past two decades, several studies have focused on the influence of cracks on chloride ingress in concrete. This paper aims to review these research efforts, with respect to experimental methods used to produce cracked specimens, simulate harsh exposure conditions and analyze the results. Different influencing parameters are discussed, and some recommendations for further research are given.
Chloride ingress in cracked concrete- a literature review
Chloride induced corrosion of reinforcing steel is one of the most important mechanisms causing deterioration of reinforced concrete structures and the need for their premature repair or replacement. Significant research efforts have, therefore, been undertaken in recent decades, trying to quantify these effects. Yet, most of the studies and recommendations are based on the assumption of sound, uncracked concrete. However, reinforced concrete structures are frequently cracked, due to different causes, such as shrinkage, thermal effects, and loading. Cracking of the reinforced concrete structural members alters the local transport properties of the concrete cover, and allows rapid ingress of chloride ions and onset of corrosion. In the past two decades, several studies have focused on the influence of cracks on chloride ingress in concrete. This paper aims to review these research efforts, with respect to experimental methods used to produce cracked specimens, simulate harsh exposure conditions and analyze the results. Different influencing parameters are discussed, and some recommendations for further research are given.
Chloride ingress in cracked concrete- a literature review
Andrade, Carmen (Herausgeber:in) / Gulikers, Joost (Herausgeber:in) / Šavija, Branko (Autor:in) / Schlangen, Erik (Autor:in)
Advances in Modeling Concrete Service Life ; Kapitel: 14 ; 133-142
RILEM Bookseries ; 3
05.11.2011
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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