EUROCORR 2016 |
EUROCORR 2016
Corrosion of steel reinforcement as a result of repair of concrete damages induced by reinforcing steel corrosion is a common and well documented result of “patch repairs”. The corrosion is caused by the transformation of cathodic areas near the corroding steel reinforcement into “incipient anodes”. Incipient anodes may be prevented by embedding discrete galvanic anodes into the patch repair close to the interface repair/old concrete, shifting the steel potentials of the passive steel towards sufficiently negative potentials to eliminate or at least minimize macro-cells. The main issues regarding durability and reliability of galvanic zinc anodes are passivation of the zinc anode and the formation of anodically formed zinc hydroxide forming an ion-transport barrier. A novel type of discrete galvanic zinc anode is presented that addresses and solves these issues. The novel discrete galvanic zinc anode system is composed of a novel type of composite zinc mesh embedded into a proprietary matrix that solidifies into an electrolyte with ion exchange properties. The combination of the novel composite zinc anode and the solid matrix containing additives that prevent passivation of the zinc anode assures high and durable galvanic activity of the discrete galvanic zinc anode. |
New References
Galvanic Corrosion Protection with the EZA Technology |
Read more » |
Application of CAST3+ conductive coating |
Read more » |
MO-DAC at IBAC of RWTH Aachen |
Read more » |
Recent Posts
ICCRRR 2022 |
Read more » |
TDS of QEZAC & CASTQ |
Read more » |
Concrete Solutions 2019 |
Read more » |
ICCRRR 2018 |
Read more » |
FIB 2016
|
Read more » |