Test methods to determine durability of concrete under combined environmental actions and mechanical load: final report of RILEM TC 246-TDC

At present several methods are available to predict the durability of reinforced concrete structures. In most cases, one dominant deterioration process such as carbonation or chloride penetration is taken into consideration. Experimental results as well as observations in practice show that this is...

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Bibliographic Details
Published inMaterials and structures Vol. 50; no. 2; p. 1
Main Authors Yao, Yan, Wang, Ling, Wittmann, Folker H., De Belie, Nele, Schlangen, Erik, Eguez Alava, Hugo, Wang, Zhendi, Kessler, Sylvia, Gehlen, Christoph, Yunus, Balqis Md, Li, Juan, Li, Weihong, Setzer, Max. J., Xing, Feng, Cao, Yin
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.04.2017
Springer Nature B.V
Subjects
Building construction
Building Materials
Civil Engineering
Engineering
Machines
Manufacturing
Materials Science
Original Article
Processes
Solid Mechanics
Theoretical and Applied Mechanics
Combined actions
Compressive stress
Tensile stress
Concrete durability
Service life prediction
Chloride ion diffusion
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Summary:At present several methods are available to predict the durability of reinforced concrete structures. In most cases, one dominant deterioration process such as carbonation or chloride penetration is taken into consideration. Experimental results as well as observations in practice show that this is not a realistic and certainly not a conservative approach. In order to test more realistically, RILEM TC 246-TDC, founded in 2011, has developed a method to determine the durability of concrete exposed to the combined action of chloride penetration and mechanical load. In this report, a test method is presented which allows determination of realistic diffusion coefficients for chloride ions in concrete under compressive or tensile stress. Comparative test results from five different laboratories showed that the combination of mechanical and environmental loads may be much more severe than a single environmental load without mechanical loading. Modelling and probabilistic analysis also showed that the obvious synergetic effects cannot be neglected in realistic service life prediction.
ISSN:1359-5997
1871-6873
DOI:10.1617/s11527-016-0983-5