Photocatalysis applied to concrete products - Part 3: Practical relevance and modeling of the degradation process

The third and last part of this article series concludes the characterization of influencing factors on the degradation performance illustrated by the influence of pigments. Furthermore, the results of an accelerated durability test carried out on coated samples described in the second part of this article series will be presented. Here, attention was not only paid to the investigation of the durability of the coated samples but also to the inhibition of the growth of green algae on the surface of paving blocks. Besides the practical issues, an approach for modeling the reaction process within a reactor cell will be briefly introduced.