Products

CITec Survey

Reference Electrodes

CITec CeControl

Combination Electrode

CITec Survey

See also: CITec Survey - Homepage

CITec Survey is an integrated system for the condition survey and assessment of reinforced concrete structures on corrosion damages.

By the combined measurement of different physical and chemical data the corrosion behaviour can be interpreted and assessed much more precisely than by measuring just single parameters such as rest potentials. Furthermore, the reinforcement layout and structural damages of the concrete can be visualized and numerically evaluated. Thereby the results of non-destructive testing and conventional survey are being added and united.

The measurement data are related to reproducible coordinates in a grid of 60 x 60 cm and can be compared between different parameters and measurement times. The data base has an open design and can be customized.

CITec Survey supports the assessment of corrosion damages in a new quality, makes connections visible and offers a best possible decision base to the qualified user for the determination of the very complex processes of reinforcement corrosion and for an appropriate maintenance design.

The following data can be measured, inserted, displayed, analyzed and distributed in different numerical and graphical ways (item (special feature): input):

data of the structure (list of administrative data): manually
data of the structural part (list of e.g. concrete composition data): manually
reinforcement (reinforcement scan from HILTI Ferroscan): manually, csv- and bmp-import
minimum concrete cover (detection scan from HILTI Ferroscan): manually, csv-import
open circuit potential (vs. 3 reference electrode systems): manually, online, csv-import
surface resistivity: manually, online, csv-import
temperature: manually, online, csv-import
carbonation depth (vs. 2 spray indicators): manually
chloride content (for up to 5 levels of adjustable thickness): manually
concrete humidity (for up to 5 levels of adjustable thickness): manually
rebound values – Schmidt hammer (with median calculation due to EN 12504-2): manually
concrete strength: manually
delamination areas (in 0.1 m² steps): manually
spalls (incl. depth, in 0.1 m² steps): manually
cracks (incl. crack width): manually
documentation (bmp- and jpg-files): link
information (comments for all instances): manually

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Reference Electrodes

For the mobile use during monitoring tasks as well as for the surveillance of electrochemical rehabilitation applications we offer reference electrodes. Data sheets can be downloaded as pdf-files.

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Cu/CuSO4- reference electrode (CSE) e.g. for potential measurements on reinforced concrete

MnO2- miniature electrode e.g. for temporary use in reinforced concrete during a rehabilitation

CITec CeControl

CITec CeControl is the program for controlling and regulating an optimal Chloride Extraction process from reinforced concrete. Basing on data imported from CITec Survey, the rehabilitation process can be planned, configured and surveilled centrally. Coincidentially, the required measurement and regulation will be done locally. A documentation file stores all events and measurement data of the extraction process and gives best reliability and a visible high quality.

With CeControl, an industrial network system controls the Combination Electrodes, and the related structural part can be treated in individual sections of 60 x 60 cm.

Combination Electrode

The patented CombinationElectrode is a complete functional unit for mounting it on the concrete surface. It has a size of 60 x 60 x 5 cm and is to be fixed by a centrally placed plug-thread rod. This makes a rapid mounting and dismounting for service means possible. Besides the technological units for the Chloride Extraction it has got switches and sensors for the process controlling, which can be used by CITec CeControl. The CombinationElectrode makes an individual, optimal rehabilitation for every structural section possible and considers the different material conditions down to a small scale.

Components for the Chloride Extraction:

Glass fleece layer as electrolyte reservoir and for connecting to the concrete surface
Ion exchanger for absorbing the Chloride ions
Anode (dimension stable electrode)
Cover layer (mounting layer and evaporation protection)

Components for the process control:

switch at the voltage bus system
connectors for measuring voltage and current behind the switch
reference electrode

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