This paper presents the results from ten years of stability testing of commercial silver/silver chloride, manganese oxide and graphite embedded reference electrodes used in reinforced concrete structures. Tests were performed in chloride-free and chloride-contaminated slabs
exposed to the weather in the northeastem United States. Also included is the effect on potential readings of IR drops caused by corrosion of an embedded rebar.
Keywords: Reference Electrodes, Reinforced Concrete, Silver Chloride, Graphite, Manganese Oxide, Stability, Long-term Testing