Modeling Degradation of Cementitious Materials in Aggressive Aqueous Environments

Abstract

The vast majority of the world’s concrete infrastructure was built around the middle of the twentieth century, and for the most part is now approaching an age of half a century or more. In many cases, the structures are showing signs of degradation mechanisms such as corrosion of the steel reinforcement, alkali-silica reaction (ASR), and freeze-thaw.KeywordsCouplingDegradationElectrochemical potentialMulti-ionicTransport modellingThermo-hydro-mechanical models