ABSTRACT
Clearly, there are numerous methods to provide improved corrosion resistance to steel in concrete to improve long-term durability. A rational approach is needed to select the best method or combination of methods, that is, corrosion protection system based upon a total lifecycle cost of the structure. A couple of the numerous references are included (Berke et al. 1997, omas and Bentz 2000). In general, the models clearly show that several corrosion protection systems are highly cost-eective over the design life of the structure and that there is a good synergy with using low-permeability concretes with a corrosion protection system. As noted previously, cracking can be mitigated by using SRAs and bers to maintain the low permeability of the structure. In addition, low-permeability concretes, as noted, provide enhanced resistance to sulfate and freezing and thawing degradation mechanisms.
