Reinforcement corrosion rapidly weakens a structure, exponentially reducing its strength and load-bearing capacity. Its virtually irreversible.
Timely and accurate diagnosis of the problem is vital in containing /controlling the degeneration. High resolution mapping of corrosion enables clear understanding of source, extent and progression of corrosion as key parameters for effective remediation planning.
Testing procedure, data acquisition, data analysis and reporting conforms to ASTM C876 industry standard Half-Cell Potentials of Uncoated Reinforcing Steel in Concrete.
The theory of the method relies on taking numerous micro-resistivity measurements across the surface using the Giatec XCell™ smart tablet-based NDT probe.
As per the instruction manual, the micro-resistivity measurements are processed and gridded into half-cell contoured outputs used to map, analyse potential anomalies or locations with high probability of corrosion. Classification of corrosion severity may be further done by comparison with pre-established ranges and charts.