ABSTRACT
In this chapter, a brief description of supplemental corrosion protection measures is provided for structures especially at risk. The use of good-quality concrete as described in the next chapters is considered the primary protection method, but various combinations of this with added supplements are necessary to reach the desired design life of the structure. The preliminary method of protection of steel reinforcement is the achievement of good quality control in design and construction, taking all precautions to avoid corrosion, as stated in the codes and specifications of different countries. These specifications vary with the different weather conditions to which a structure is exposed, as well as with the function of the building.
This chapter discusses the lines of defense for protecting the steel bars using external methods. These methods include the use of galvanized steel bars, epoxy-coated steel bars or stainless steel additives, and external membranes to prevent water permeability in cathodic protection. These methods have both advantages and disadvantages. This chapter discusses them and provides ways of application for each type of protection.
