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Evolution of the strains of traditional and self-compacting concrete during and after fire

Emmanuel Annerel UGent and Luc Taerwe UGent (2011) MATERIALS AND STRUCTURES. 44(8). p.1369-1380
abstract
This paper deals with the strains developed in a traditional vibrated and a self-compacting concrete during heating, as well as the stress-strain relationship after the heating cycle. Information about the strains occurring during fire is necessary to calculate the structural response, whereas the mechanical properties after fire are needed to assess the remaining load bearing capacity. Since most concrete structures behave very well after a fire, such an assessment could be of economic interest. Firstly, in this paper, concrete cylinders are heated under different loading conditions during which the occurring strains are measured. Secondly, the same specimens are tested for Young's modulus after a post-cooling storage period of several weeks. It is observed that during heating under compressive stress, the free thermal expansion is partly compensated, resulting in smaller expansions and a relaxation of the thermal stresses. Besides these load related phenomena, also the cooling method and the post-cooling storage have an influence on the mechanical properties of the concrete after fire. From the experiments, several stress-strain models are derived, taking into account the temperature, the load level and a post-cooling storage in moist air during several weeks. The formulation of these models is based on the Sargin model which is also mentioned in EN 1992-1-2.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Sargin, Stress-strain model, Post-cooling storage, Load ratio, Concrete, Fire, STRENGTH, TEMPERATURES, CEMENT PASTE
journal title
MATERIALS AND STRUCTURES
Mater. Struct.
volume
44
issue
8
pages
1369 - 1380
Web of Science type
Article
Web of Science id
000294471900001
JCR category
ENGINEERING, CIVIL
JCR impact factor
1.278 (2011)
JCR rank
25/118 (2011)
JCR quartile
1 (2011)
ISSN
1359-5997
DOI
10.1617/s11527-010-9703-8
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2918092
handle
http://hdl.handle.net/1854/LU-2918092
date created
2012-06-25 13:50:53
date last changed
2012-06-26 12:32:51
@article{2918092,
  abstract     = {This paper deals with the strains developed in a traditional vibrated and a self-compacting concrete during heating, as well as the stress-strain relationship after the heating cycle. Information about the strains occurring during fire is necessary to calculate the structural response, whereas the mechanical properties after fire are needed to assess the remaining load bearing capacity. Since most concrete structures behave very well after a fire, such an assessment could be of economic interest. Firstly, in this paper, concrete cylinders are heated under different loading conditions during which the occurring strains are measured. Secondly, the same specimens are tested for Young's modulus after a post-cooling storage period of several weeks. It is observed that during heating under compressive stress, the free thermal expansion is partly compensated, resulting in smaller expansions and a relaxation of the thermal stresses. Besides these load related phenomena, also the cooling method and the post-cooling storage have an influence on the mechanical properties of the concrete after fire. From the experiments, several stress-strain models are derived, taking into account the temperature, the load level and a post-cooling storage in moist air during several weeks. The formulation of these models is based on the Sargin model which is also mentioned in EN 1992-1-2.},
  author       = {Annerel, Emmanuel and Taerwe, Luc},
  issn         = {1359-5997},
  journal      = {MATERIALS AND STRUCTURES},
  keyword      = {Sargin,Stress-strain model,Post-cooling storage,Load ratio,Concrete,Fire,STRENGTH,TEMPERATURES,CEMENT PASTE},
  language     = {eng},
  number       = {8},
  pages        = {1369--1380},
  title        = {Evolution of the strains of traditional and self-compacting concrete during and after fire},
  url          = {http://dx.doi.org/10.1617/s11527-010-9703-8},
  volume       = {44},
  year         = {2011},
}

Chicago
Annerel, Emmanuel, and Luc Taerwe. 2011. “Evolution of the Strains of Traditional and Self-compacting Concrete During and After Fire.” Materials and Structures 44 (8): 1369–1380.
APA
Annerel, E., & Taerwe, L. (2011). Evolution of the strains of traditional and self-compacting concrete during and after fire. MATERIALS AND STRUCTURES, 44(8), 1369–1380.
Vancouver
1.
Annerel E, Taerwe L. Evolution of the strains of traditional and self-compacting concrete during and after fire. MATERIALS AND STRUCTURES. 2011;44(8):1369–80.
MLA
Annerel, Emmanuel, and Luc Taerwe. “Evolution of the Strains of Traditional and Self-compacting Concrete During and After Fire.” MATERIALS AND STRUCTURES 44.8 (2011): 1369–1380. Print.