Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influences of the reinforcement and surface layers on the apparent concrete resistivity by using a four-electrode-probe
Concrete resistivity is a significant parameter to evaluate the durability of reinforced concrete structures. It can be determined non-destructively by using a four-electrode setup. However reinforcement bars as well as layers with different resistivities have a significant influence on the readings. In the case of a four-electrode measurement the apparent resistivity is commonly determined on the base of a semi-spherical distribution of the current in the concrete which does not fully reflect the real situation. For surface layers a cylindrical approach is presented to describe this phenomenon analytically. The influences of reinforcement bars are more complex to specify. Fundamental investigations are made experimentally in solution and by numerical simulations.
Influences of the reinforcement and surface layers on the apparent concrete resistivity by using a four-electrode-probe
Concrete resistivity is a significant parameter to evaluate the durability of reinforced concrete structures. It can be determined non-destructively by using a four-electrode setup. However reinforcement bars as well as layers with different resistivities have a significant influence on the readings. In the case of a four-electrode measurement the apparent resistivity is commonly determined on the base of a semi-spherical distribution of the current in the concrete which does not fully reflect the real situation. For surface layers a cylindrical approach is presented to describe this phenomenon analytically. The influences of reinforcement bars are more complex to specify. Fundamental investigations are made experimentally in solution and by numerical simulations.
Influences of the reinforcement and surface layers on the apparent concrete resistivity by using a four-electrode-probe
Einfluss der Verstärkung und von Oberflächenschichten auf den Scheinwiderstand von Beton mit Nutzung einer 4-Elektroden-Probe
Reichling, Kenji (Autor:in) / Raupach, Michael (Autor:in) / Schulte-Holthausen, Robert (Autor:in)
2012
15 Seiten, 11 Bilder, 1 Tabelle, 17 Quellen
Aufsatz (Konferenz)
Englisch
Four Electrode Resistivity Probe for Porosity Evaluation
| Online Contents | 2011
Four Electrode Resistivity Probe for Porosity Evaluation
| British Library Online Contents | 2011