Concrete performance subject to coupled deterioration in cold environments

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

The design of concrete durability is normally based on the assessment of its performance when subject to a single deterioration mechanism. In reality, concrete structures are subject to varying environmental exposure conditions which often results in multi-deterioration mechanisms occurring. The Nordic climate, with cold harsh winters, poses a severe challenge to the long-term durability of concrete. The most common deterioration mechanisms are freeze-thaw damage, carbonation and chloride induced corrosion. Research is now more focused on the assessment of coupled deterioration mechanisms. For instance, evaluating how cracks resulting from freeze-thaw influence chloride ingress, or how carbonation changes the surface properties and thereby influencing freeze-thaw scaling and chloride penetration. This paper presents the results of research projects at VTT focusing on coupling deterioration mechanisms. These research projects have built on several decades of concrete durability research at VTT, including 15 years of field station studies. The durability of the concretes has been assessed using both accelerated laboratory testing and also from in situ exposure results from field stations. This research has contributed to the development of concrete performance models and service life tools, supporting a holistic approach for deterioration assessment.

Original languageEnglish
Pages (from-to)228-234
Number of pages7
JournalNuclear Engineering and Design
Volume323
DOIs
Publication statusPublished - 1 Nov 2017
MoE publication typeA1 Journal article-refereed

Fingerprint

durability
deterioration
Deterioration
Concretes
chloride
Durability
Chlorides
Carbonation
research projects
chlorides
concrete structure
holistic approach
stations
corrosion
concrete structures
crack
service life
penetration
Concrete construction
Service life

Keywords

  • Chloride ingress
  • Chloride profiles
  • Concrete
  • Diffusion
  • Durability
  • Freeze-thaw

Cite this

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title = "Concrete performance subject to coupled deterioration in cold environments",
abstract = "The design of concrete durability is normally based on the assessment of its performance when subject to a single deterioration mechanism. In reality, concrete structures are subject to varying environmental exposure conditions which often results in multi-deterioration mechanisms occurring. The Nordic climate, with cold harsh winters, poses a severe challenge to the long-term durability of concrete. The most common deterioration mechanisms are freeze-thaw damage, carbonation and chloride induced corrosion. Research is now more focused on the assessment of coupled deterioration mechanisms. For instance, evaluating how cracks resulting from freeze-thaw influence chloride ingress, or how carbonation changes the surface properties and thereby influencing freeze-thaw scaling and chloride penetration. This paper presents the results of research projects at VTT focusing on coupling deterioration mechanisms. These research projects have built on several decades of concrete durability research at VTT, including 15 years of field station studies. The durability of the concretes has been assessed using both accelerated laboratory testing and also from in situ exposure results from field stations. This research has contributed to the development of concrete performance models and service life tools, supporting a holistic approach for deterioration assessment.",
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author = "Miguel Ferreira and Hannele Kuosa and Markku Leivo and Erika Holt",
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Concrete performance subject to coupled deterioration in cold environments. / Ferreira, Miguel; Kuosa, Hannele; Leivo, Markku; Holt, Erika.

In: Nuclear Engineering and Design, Vol. 323, 01.11.2017, p. 228-234.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Ferreira, Miguel

AU - Kuosa, Hannele

AU - Leivo, Markku

AU - Holt, Erika

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