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

Author
Ikumi, T.; Pialarissi Cavalaro, S.H.; Segura, I.; Aguado, A.
Type of activity
Journal article
Journal
Cement and concrete research
Date of publication
2014-09-01
Volume
63
First page
105
Last page
116
DOI
https://doi.org/10.1016/j.cemconres.2014.05.011 Open in new window
Project funding
Reacciones expansivas en obras de hormigón: prevención, diagnosis y predicción de su futura evolución
Repository
http://hdl.handle.net/2117/23531 Open in new window
Abstract
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...
Citation
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.
Keywords
CEMENT-BASED MATERIALS, CONCRETE, CRACK, Concrete, DIFFUSION, Durability, IONS, MORTAR BARS, Modeling, Pore size distribution, Sulfate attack
Group of research
EC - Construction Engineering
TE - Structural Technology

Participants