Structural health monitoring (SHM) is defined as monitoring the integrity of systems and detecting the harm in real-time. There are one-of-a-kind techniques which could investigate the fitness tracking of RC structures the use of unique gear consisting of dynamic response measurements, pressure variations and versions in electrical resistivity in concrete. electrical resistivity measurements degree the harm propagation in concrete and the corrosion of steel reinforcement [1]. Structural fitness tracking is non-stop real-time statistics which can be collected for studying the damage propagation in RC structures. furthermore, electric resistivity is considered as a non-unfavourable trying out technique for strengthened Concrete (RC) factors and can be utilized in detecting cracks [2] [3]. therefore, electric conductivity may be used to stumble on and monitor crack initiation and propagation in concrete [2]. The blessings of the electrical resistivity trying out technique are taken into consideration low in value, easy and efficient. In widespread, electric resistivity of concrete is related to the microstructure of the cement matrix, its pore shape and pore length distribution [4]. In concrete, the present day flows via the pore liquid in the cement paste [5]. moreover, conduction of strength through concrete may additionally take area in two approaches, electronic and electrolytic. Electrolytic conduction occurs via movement of ions in concrete within the pore answer while the electronic conduction takes place through the motion of unfastened electrons within the conductive media. thus, concrete electrical resistivity is a geometry independent material property that describes the electrical resistance, the ratio among the applied voltage and the ensuing contemporary in unit cellular geometry [6].
several strategies for measuring electric resistivity have been referred to on this literature [7]. Wenner probe method is the widely used dependable approach [7] [8] for measuring electrical resistivity. The factors that control electric resistivity capabilities in concrete are the hydration diploma of the cement paste of concrete which would result in an increase of electrical resistivity with appreciate to time. furthermore, other influential elements affecting electrical resistivity measurements encompass the relative humidity, the concrete temperature, and the ions concentration and their mobility inside the pore solution [9]. the electric resistivity of concrete can be measured using numerous methods [10]. normally, electrodes are placed on the floor and the resistance is measured as in Wenner test. The resistivity is often related to corrosion and durability overall performance of concrete [11].