Concrete in Aggressive Aqueous Environments
TC 211-PAE “Performance of cement-based materials in aggressive
aqueous environments” focuses
especially on the problems of concrete and cement-based infrastructure
having to operate in aggressive aqueous environments:
In all these cases, concrete is subjected to a process of degradation whereby mass/ionic exchange processes occur leading to a breakdown of the matrix microstructure and a weakening of the material. In some cases this can be extremely rapid and serious, such as in acidic environments, whether industrially or biogenically generated. In other cases degradation occurs over long periods of time, but the scale of the problem is such that the consequences are also severe, e.g. major dams, marine works, etc. Many industrial processes also generate aggressive aqueous solutions some of which can leach or attack concrete. Furthermore with increasing levels of acid rain being experienced worldwide, the ability of concrete to withstand this form of aggressive attack is also important.
conference will focus on the following topics, in 4 sessions: