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Test Kits &
Test Equipment

Concrete Corrosion Mapping System

Sample Applications

  • Bridge Decks
  • Highway Slabs
  • Parking Garages
  • Concrete Piers & Docks
  • Substructures
  • Pre-cast Structures
  • Foundations
  • Reinforced Concrete Pipe
  • Warehouse Floors
  • Tunnels
Cat. #15620
Price $1,365.00
  • Corrosion Mapping System can be used to satisfy ASTM C-876 standard test method which has been has been adopted by the Federal Highway Administration.
  • Corrosion Mapping System contains all the items needed to perform a corrosion survey on virtually every reinforced concrete structure such as bridges, highway slabs, parking garages.
  • Includes our rugged industry proven LC-4.5 digital meter, adapter plate, electrode extensions, portable hand held test wheel (wire included).
  • Two portable reference electrodes, sponge bottle reference electrode for testing on slab surfaces and our RE-5/U for testing on overhead/vertical surfaces.
  • This light weight, easy to use test set is designed for field use under nearly any weather condition. Large scale digital meter read out at waist height minimizes operator fatigue and errors.
  • Packaged with instructions in a durable hard plastic case for ease of storage and transport to survey sites.
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.

mcm13

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


Concrete slab with steel rods
Included in Concrete Mapping Kit:

(Catalog Number and Description)

  • 5203 LC-4.5 meter w/carrying case and manual with test leads
  • 5701 Electrode extension meter adapter plate
  • 16200 Intermediate electrode extension (15”) 2 included
  • 15625 Sponge bottle electrode
  • 30501 Agra hand reel (aluminum) with: 30807 No. 16 AWG test lead wire (red wire insulation)
      250’ included on reel
  • 30807 AWG 16 test lead wire (250Ft, red) included on reel
  • 16906 Copper-sulphate crystals, 12 oz bottle
  • 17105 Electrode anti-freeze solution, 8 oz bottle.
  • 15109 RE-5U electrode (overhead testing)
  • 15628 Concentrate, 4 oz surfactant solution (Liquid household detergent)
  • MAN060 C.C.M.S. Reference guide
  • CAS015 Orange carrying case C.C.M.S.
The following items will also be required and can usually be obtained locally:
  1. Watering can or equivalent for wetting down test location.
  2. Spray cans of brightly colored paint to mark test locations.
  3. 100 foot measuring tape.
  4. Vice grip pliers and /or grounding clamp.
  5. Electrical contact solution to be used in dispensing decanter and/or pre-wetting concrete. Solution can be made up by thoroughly mixing approximately 3 fluid ounces of a household liquid detergent in 5 gallons of water. Add 15% by volume of denatured alcohol if working temperature is lower than 50oF.