Instrumentation and monitoring of structures - Concrete Repair - page 140

Figure 7.1 A permanent LPR monitoring probe being installed in a precast deck unit
of the Dartford Tunnel (Broomfield et al. 2003) (photograph courtesy BGB Projects
Ltd).
Figure 7.2 A corrosion monitoring probe consisting of a reference electrode and
an auxiliary electrode potted up in mortar in the process of installation into a
continuously reinforced concrete pavement where corrosion monitoring is required
due to the high level of chloride found in the mix water after laying several kilometres
of concrete (Broomfield et al. 2003) (photograph courtesy BGB Projects Ltd).