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Concrete Corrosion Mapping System
by MC Miller Co.


Predicts corrosion activity of reinforcing steel in concrete.

Sample Applications

  • Bridge Decks
  • Highway Slabs
  • Parking Garages
  • Concrete Piers & Docks
  • Substructures
  • Precast Structures
  • Foundations
  • Reinforced Concrete Pipe
  • Warehouse Floors
  • Tunnels

General Information

The nature of concrete corrosion is an exchange of energy within different sections of the reinforcing steel. At the anode, corrosion occurs and iron ions are released into the electrolyte. The relative energy levels can be determined in relation to a reference electrode with a stable electrochemical potential. A high impedance voltmeter is connected between the reinforcing steel and a reference electrode placed on the surface of the concrete. The resulting potential reading on the voltmeter is an indication of the energy levels (corrosion activity) of the steel in the vicinity of the reference cell.

Half cell potential measurements serve as an important means of determining the probability of corrosion activity on the structure's reinforcing steel. These measurements, which are related to the electrochemical nature of corrosion, allow an accurate survey to be performed in a short period of time.

Data from these surveys can be plotted to provide an easy to interpret graphic picture of the structure. From this plot, as typically shown below, probable corrosion areas and the total area of the structure subject to corrosion can be determined. Further information, please see the MC Miller Concrete Corrosion Mapping System Reference Guide.

Typical concrete slab section with steel reinforcement (rebars).
Potential measurements obtained on 4' centers of 24' x 48' panel.

Optional Accessories

Intermediate Electrode Extensions, 30" and 15" long. One or more can be used with MCM Model ETM, IA and LC series meters, or between the electrode and the standard electrode extension so that the electrode can be easily placed at the desire location inside manholes, water tanks, etc. Will fit through a 1" diameter augered hole.

Antifreeze Solution
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AGRA Reel
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#30501


 

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