Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
HighlightsThe modelling of non-uniform corrosion in reinforced concrete is proposed.Comparison with the uniform corrosion and rebar expansion pressure is performed.Concrete surface cracking appears much earlier in the case of non-uniform corrosion.Cracking patterns are derived through the proposed embedded cohesive crack model.
AbstractThis paper addresses the modelling of non-uniform corrosion in reinforced concrete. An uneven distribution of rust around the perimeter of the rebar is considered which represents the most common situation in real concrete structures and, especially, when they are exposed to a chloride environment. A comparison with the conventional approach based on a uniform corrosion and expansion pressure around the rebar is performed in both cracking pressure and cracking radial displacement terms. As a result, surface cracking appears much earlier in the case of non-uniform corrosion with corresponding vertical surface displacements being rather higher, with such an effect becoming more evident as cover increases. Finally, distinct cracking patterns are derived through the proposed embedded cohesive crack model by means of a practical example.
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
HighlightsThe modelling of non-uniform corrosion in reinforced concrete is proposed.Comparison with the uniform corrosion and rebar expansion pressure is performed.Concrete surface cracking appears much earlier in the case of non-uniform corrosion.Cracking patterns are derived through the proposed embedded cohesive crack model.
AbstractThis paper addresses the modelling of non-uniform corrosion in reinforced concrete. An uneven distribution of rust around the perimeter of the rebar is considered which represents the most common situation in real concrete structures and, especially, when they are exposed to a chloride environment. A comparison with the conventional approach based on a uniform corrosion and expansion pressure around the rebar is performed in both cracking pressure and cracking radial displacement terms. As a result, surface cracking appears much earlier in the case of non-uniform corrosion with corresponding vertical surface displacements being rather higher, with such an effect becoming more evident as cover increases. Finally, distinct cracking patterns are derived through the proposed embedded cohesive crack model by means of a practical example.
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
Guzmán, Santiago (Autor:in) / Gálvez, Jaime C. (Autor:in)
Construction and Building Materials ; 155 ; 1063-1071
15.08.2017
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
| British Library Online Contents | 2017
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
| British Library Online Contents | 2017
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
| Online Contents | 2017
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
| British Library Online Contents | 2017
Modelling of concrete cover cracking due to non-uniform corrosion of reinforcing steel
| British Library Online Contents | 2017