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Surface Resistivity Testing with Resipod

Surface resistivity measurement testing provides extremely useful information about the state of a concrete structure. Not only has it been proven to be directly linked to the likelihood of corrosion and the corrosion rate, recent studies have shown that there is a direct correlation between resistivity and chloride diffusion rate and even to determination of early compressive strength. This makes it one of the most versatile NDT methods for concrete.


Resipod Family

The advanced Resipod family offers a complete solution for measuring the electrical resistivity of concrete both in the laboratory under controlled conditions and on site. The construction industry is rapidly moving towards performance based specifications for concrete durability and this is largely determined by the permeability of the concrete. The electrical resistivity of concrete is determined by the resistivity of fluid in the pores, the pore structure and the degree of saturation. It is therefore directly related to the permeability of the concrete. All of these factors are affected by construction practice and this makes electrical resistivity an ideal test method for use in quality control programs and performance based specifications.


Resipod is a fully integrated 4-point Wenner probe, designed to measure the electrival resistivity of concrete in a completely non-destructive test.