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Thermal Crack Risk of Concrete Structures: Evaluation of Theoretical Models for Tunnels and Bridges
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
2017 (English)In: Nordic Concrete Research, ISSN 0800-6377, no 56, 55-70 p.Article in journal (Refereed) Published
Abstract [en]

An approach for thermal crack risk estimations was introduced in the Swedish design guidelines BRO 94. The cracking occurs during the early hardening process because of the exothermic reactions between water and cement and often result in high repair costs and delayed construction. This paper studies and validates the inherent safety levels for one typical case of concrete structure. Three slab-frame structures were analysed and the original crack risk estimations were compared to the actual cracking and postcalculations were carried out, using actual parameters. This paper shows that walls with computed strain ratios over 70% were affected by thermal cracks.

Place, publisher, year, edition, pages
Nordic Concrete Federation , 2017. no 56, 55-70 p.
Keyword [en]
Thermal cracking, Structural Design, Sustainability, Concrete tunnels
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-64967OAI: oai:DiVA.org:ltu-64967DiVA: diva2:1129785
Note

Validerad;2017;Nivå 1;2017-08-16 (rokbeg)

Available from: 2017-08-07 Created: 2017-08-07 Last updated: 2017-08-17Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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More styles
Language
  • de-DE
  • en-GB
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Output format
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