Practical measurement of concrete resistivity

A recent paper by the authors discussed the development of a new device for measuring the electrical resistivity of concrete. This device was designed to assess the corrosion durability risk of in situ reinforced concrete structures, where a survey of a large number of spot resistivity measurements needs to be taken quickly and stored for later inspection. A subsequent paper discusses several possible advantages of alternative instrumentation that has been independently developed. The authors welcome the opportunity to compare and to discuss the merits of the different approaches