Evaluation of service life design assessment according to different chloride diffusion and carbonation models applied on Belgian concrete mixtures
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Bibliographic Details
| Author(s): |
Liesbet de Winter
(KU Leuven – University of Leuven Department of Civil Engineering, Gebroeders De Smetstraat 1, 9000 Gent, Belgium)
Peter Minne (KU Leuven – University of Leuven Department of Civil Engineering, Gebroeders De Smetstraat 1, 9000 Gent, Belgium) Robby Caspeele 
(Ghent University Department of Structural Engineering, Technologiepark 904, 9052 Zwijnaarde, Belgium)
Geert De Schutter (Ghent University Department of Structural Engineering, Technologiepark 904, 9052 Zwijnaarde, Belgium) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 1254-1261 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.1249 | ||||
| Abstract: |
This contribution presents the preliminary research outcomes of a pilot program for the validation of models and test methods for assessment of the durability related to Belgian concrete mixtures. The chloride diffusion and carbonation model offibbulletin 34 [1] and the recent outcomes reported infibbulletin 76 [2] are applied and evaluated. A sensitivity analysis is performed for both damage mechanisms. In addition there are certain parameters in the models which can be recalibrated to the Belgian concrete compositions or exposure conditions. Such a calibration will be performed for the common used types of cement in Belgium (CEM I, CEM III/A and CEM III/B). Preliminary research shows that for chloride ingress, the ageing exponent α, the diffusion- and migration coefficient Da(t) and DRCM,0(t0) can be recalibrated according to the Belgian situation. In case of carbonation the relationship between the natural RNAC-1 and accelerated RACC-1 inverse carbonation resistance can be determined. |
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| Keywords: |
concrete modelling durability sensitivity carbonation Chloride ingress
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