- Author: Nóvoa X.R.,Pérez C.,Reyes A.,Soage A.,Vázquez A.
- Publicado el: 01/06/2016
Thermogalvanic Currents in Steel Reinforced Concrete
The thermogalvanic currents between nominally identical segments in a reinforced concrete beam were investigated. Temperature gradients induce galvanic currents that exhibit a 30 °C critical point. The character of the hot electrode side changes from anodic to cathodic when the temperature rises above that pivot point. Parallel tests performed in solution using carbon steel-stainless steel galvanic couples also revealed that 30 °C is a critical temperature. In NaOH solution the carbon steel behaves cathodically with respect to stainless steel but only for T< 30 °C. In Ca(OH)2 solution containing chlorides the carbon steel consistently behaves anodically while the degree of thermogalvanic current exhibits a pronounced temperature dependence.
- Year of publication: 2016
- Journal: Electrochimica Acta
- Volume: 202
- Pages: 269
- Label: ISSN 0013-4686
- Industrial Sector: Metal mechanical