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Entwicklung eines optischen pH-Sensors zur Früherkennung korrosionsgefährdender Zustände in Stahlbeton [Development of an Optical pH Sensor for Early Detection of Danger of Corrosion in Steel-Reinforced Concrete Structures]

Dantan, Nathalie ; Höhse, Marek ; Karasyov, Alexander A. ; Wolfbeis, Otto S.



Abstract

The decrease of the pH value of cement-bound matrix in steel-reinforced structures due to chemical attacks damages corrosion protective layers and results in serious deteriorations of the structures. To date commercially available systems for monitoring the pH value in steel-reinforced concrete structures do not meet all technical requirements. Hence a concrete-embeddable fiber optic pH sensor was developed.


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