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CONDITION ASSESSMENT
Carbonation (corrosion penetration) and detection and mapping the relative
concrete condition for rehab planning.
Deteriorated concrete detected by high resolution ground penetrating
radar.
Model 5100 1500MHz antenna with unsurpassed data resolution for concrete investigations.
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- Carbonation is one of the two main causes of corrosion of
steel in concrete.
Gives depth of carbonation.
Carbonation testing consists of a colored dye that is sprayed on the surface
of
the concrete. The solution will change to pink in uncarbonated
concrete and
remain colorless when sprayed on carbonated (low pH) concrete.
By spraying the solution along a core drilled from the top surface down to
the
reinforcement bar, it can be readily seen how far the carbonation has
progressed. The sample on the left shows the carbonation has reached
the top of the rebar and corrosion has started.
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