Multiscale Adaptive Simulations of Concrete Carbonation Taking into Account the Evolution of the Microstructure
Claus-Justus Heine, Christian Möller, Malte A. Peter, Kunibert G. Siebert · 2013
Concrete carbonation is a chemical degradation mechanism compromising the service life of reinforced concrete structures. Using a homogenization approach to upscale the associated reaction-diffusion system given in a porous medium, whose microstructure undergoes an evolution in time, an effective macroscopic limit model is obtained. To lower the complexity of numerical simulations further, an efficient adaptive finite element scheme for the limit problem is presented. The approach is generally applicable to reaction-diffusion problems in porous media.