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Reinforced concrete also ages. To ensure that its age is not visible, it needs good aftercare and a thick skin. The chemical reaction of carbonation is explained and why it is not a problem for concrete, but for reinforcing steel. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Author: Dipl.-Ing. Christina Nobis Link: • Concrete - Carbonation