Concrete Corrosion Mapping System

Concrete Corrosion Mapping System allows rapid assessment of concrete surfaces for the presence of or tendency for chloride-induced corrosion in reinforcing steel. Operating on the half-cell potential method, this instrument is used on bridge decks, pavement, walls, and other structures.

Reinforcing steel in concrete is normally passive to corrosion until chlorides from the environment penetrate the concrete and start a flow of electrical currents. Half-cell measurements indicate corrosion activity using a probe electrically connected to the concrete through a water-saturated sponge. A separate cable is attached to rebar in the structure, completing the electrical circuit. The potential readings correlate to steel corrosion activity in the vicinity of the probe. Readings can be plotted on paper or on the concrete itself to provide a graphic assessment of the structure. A Rebar Locator is recommended to accurately reference bar position.

Features:

• Quickly assesses the existence of or potential for chloride-induced corrosion in reinforcing steel
• Easily examines bridge decks, pavement, walls, and other structures
• Operates using the half-cell potential method

Included Items:

• Concrete Corrosion Mapping System
  • Specialized voltmeter in a protective pouch
  • Copper/copper sulfate electrode
  • Surfactant reservoir
  • Dispensing sponge
  • Separate electrode for overhead readings
  • (2) 15in (381mm) extensions
  • Reel with 250ft (76m) of wire
  • Surfactant solution
  • Copper sulfate crystals
  • Sturdy plastic case
  • Handle extension probe

Accessories:

• HMA-385 Surfactant Reservoir w/ CuS04 Electrode
• HMA-387 Replacement Dispensing Sponge
• HMA-386 Surfactant Solution for additional tests
• Rebar Locator