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Principle 8 - Increasing Resistivity

Principle 8 deals with increasing the resistivity of the concrete, which is directly connected to the level of moisture available in the concrete pores. The higher the resistivity, the lower is the amount of free moisture available in the pores. This means that reinforced concrete with high resistivity will have a low corrosion risk.

As concrete’s electrical resistivity is directly connected to the level of moisture available, the main methods of increasing resistivity are identical to the Methods of repair in Principle 2 Moisture Control. The article covering Principle 2 can be found here.