In this paper. we consider the mechanical effect of the sulfate attack on concrete. The durability analysis of concrete structures in contact to external sulfate solutions requires the definition of a proper diffusion-reaction model. for the computation of the varying sulfate concentration and of the consequent ettringite formation. https://www.bekindtopets.com/best-grab-Goulds-Water-Technology-Submersible-Sump-Pump-LSP0711F-save-more/