Corrosion Control
 | Reinforced concrete will invariably be subjected to a corrosion process that ultimately leads to a total failure of the structure. In the first stage, aggressive elements such as chloride or carbon dioxide penetrate into the structure. On reaching the rebars, high concentrations of these aggressive elements attack the passive layer of hydrated iron oxide that protects the rebar against corrosion. Rust begins to form which eventually leads to structural failure. |
The susceptibility of rebars to corrosion is greatly affected by the condition of the concrete cover and the rebar configuration. Several factors must be taken into consideration. Proceq offers a wide range of instruments necessary to make a full assessment.
Concrete Cover and Reinforcement Evaluation
The concrete cover can be evaluated by testing permeability, resistivity, concrete surface cohesion, carbonation depth and chloride content.
Cover depth measurements with PROFOMETER / PROFOSCOPE.
Permeability measurements with TORRENT.
Resisitivity measurements with CANIN+.
The reinforcement condition is evaluated by measuring rebar thickness, rebar arrangement and by using the half-cell potential method to locate the active corrosion.
Rebar thickness/arrangement measurements with PROFOMETER / PROFOSCOPE.
Active corrosion measurements with CANIN+.
Measuring corrosion with the Canin+
