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The role of porosity in external sulphate attack

Author
Ikumi, T.; Pialarissi, S.; Segura, I.
Type of activity
Journal article
Journal
Cement & concrete composites
Date of publication
2019-03
Volume
97
First page
1
Last page
12
DOI
https://doi.org/10.1016/j.cemconcomp.2018.12.016 Open in new window
Project funding
Management and security of hydraulic infrastructures
Repository
http://hdl.handle.net/2117/127464 Open in new window
https://www.researchgate.net/publication/329868416_The_role_of_porosity_in_external_sulphate_attack Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S0958946518300878 Open in new window
Abstract
Design codes promote a limitation of permeability (indirectly of porosity) to reduce the sulphate ingress and improve the resistance of concrete and mortar to external sulphate attack (ESA). However, porosity could also have a positive effect on durability by generating additional space to accommodate the expansive phases. The aim of this study is to evaluate the role of porosity in ESA. For that, changes at the macro-scale, phase composition and pore network are monitored for mortar composition...
Citation
Ikumi, T., Pialarissi, S., Segura, I. The role of porosity in external sulphate attack. "Cement & concrete composites", Març 2019, vol. 97, p. 1-12.
Keywords
Sulphate attack (C) Ettringite (D) X-ray diffraction (B) Mercury porosimetry (B) Pore structure
Group of research
EC - Construction Engineering

Participants