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Alternative methodology to consider damage and expansions in external sulfate attack modeling

Autor
Ikumi, T.; Pialarissi Cavalaro, S.H.; Segura, I.; Aguado, A.
Tipus d'activitat
Article en revista
Revista
Cement and concrete research
Data de publicació
2014-09-01
Volum
63
Pàgina inicial
105
Pàgina final
116
DOI
https://doi.org/10.1016/j.cemconres.2014.05.011 Obrir en finestra nova
Projecte finançador
Reacciones expansivas en obras de hormigón: prevención, diagnosis y predicción de su futura evolución
Repositori
http://hdl.handle.net/2117/23531 Obrir en finestra nova
Resum
A diffusion-reaction numerical model is proposed to simulate the response of concrete exposed to external sulfate attack. Diffusion properties are modified based on the strain reached and the ratio of porosity filled by ettringite. A direct and intuitive approach is proposed for the consideration of the diffusion in a cracked porous media based on the constitutive law of the material. A methodology to compute expansions based on a more realistic consideration of the concrete porosimetry is prese...
Citació
Ikumi, T. [et al.]. Alternative methodology to consider damage and expansions in external sulfate attack modeling. "Cement and concrete research", 01 Setembre 2014, vol. 63, p. 105-116.
Paraules clau
Sulfate Attack, Concrete, Durability, Modeling, Pore Size Distribution, Cement-based Materials, Mortar Bars, Concrete, Diffusion, Ions, Crack
Grup de recerca
EC - Enginyeria de la Construcció
TE - Tecnologia d'Estructures