Damage modelling in concrete subject to sulfate attack | Zendy

Nicola Cefis | Zendy; Claudia Comi | Zendy

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Damage modelling in concrete subject to sulfate attack

Author(s) -

Nicola Cefis,

Claudia Comi

Publication year - 2014

Publication title -

frattura ed integrità strutturale

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.368

H-Index - 19

ISSN - 1971-8993

DOI - 10.3221/igf-esis.29.19

Subject(s) - ettringite , durability , sulfate , diffusion , materials science , swelling , computation , degradation (telecommunications) , work (physics) , composite material , structural engineering , forensic engineering , computer science , engineering , mechanical engineering , thermodynamics , metallurgy , physics , telecommunications , portland cement , algorithm , cement

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 consequentettringite formation, coupled to a mechanical model for the prediction of swelling and material degradation. Inthis work, we make use of a two-ions formulation of the reactive-diffusion problem and we propose a bi-phase chemo-elastic damage model aimed to simulate the mechanical response of concrete and apt to be used in structural analyses

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