CHLORIDE ION SENSOR AND METHOD FOR MEASURING CONCENTRATION OF CHLORIDE ION

To provide a chloride ion sensor enabling long-term monitoring, and a method for measuring concentration of chloride ions.SOLUTION: A chloride ion sensor is a sensor that measures the concentration of chloride ions in a concrete structure, and comprises: at least a pair of electrodes arranged on the surface of the concrete structure so as to be spaced apart from each other; and a measuring unit that measures impedance in a state in which an alternating current is applied between the at least the pair of electrodes, where the at least the pair of electrodes has a hot melt electrode containing a hot melt resin in which a conductive filler is dispersed.SELECTED DRAWING: Figure 1 【課題】長期的なモニタリングが可能な塩化物イオンセンサ、及び塩化物イオン濃度計測方法を提供すること。【解決手段】コンクリート構造物中の塩化物イオン濃度を計測するセンサであって、前記コンクリート構造物の表面に相互に間隔を隔てて配置される少なくとも一対の電極と、前記少なくとも一対の電極の間に交流電流を流した状態におけるインピーダンスを測定する測定部とを備え、前記少なくとも一対の電極が、導電性フィラーが分散されたホットメルト樹脂を含むホットメルト電極を有する、塩化物イオンセンサ。【選択図】図１