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Evaluation of service life design assessment according to different chloride diffusion and carbonation models applied on Belgian concrete mixtures

 Evaluation of service life design assessment according to different chloride diffusion and carbonation models applied on Belgian concrete mixtures
Autor(en): , , ORCID,
Beitrag für IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016, veröffentlicht in , S. 1254-1261
DOI: 10.2749/stockholm.2016.1249
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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. ...
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Bibliografische Angaben

Autor(en): (KU Leuven – University of Leuven Department of Civil Engineering, Gebroeders De Smetstraat 1, 9000 Gent, Belgium)
(KU Leuven – University of Leuven Department of Civil Engineering, Gebroeders De Smetstraat 1, 9000 Gent, Belgium)
ORCID (Ghent University Department of Structural Engineering, Technologiepark 904, 9052 Zwijnaarde, Belgium)
(Ghent University Department of Structural Engineering, Technologiepark 904, 9052 Zwijnaarde, Belgium)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016
Veröffentlicht in:
Seite(n): 1254-1261 Anzahl der Seiten (im PDF): 8
Seite(n): 1254-1261
Anzahl der Seiten (im PDF): 8
Jahr: 2016
DOI: 10.2749/stockholm.2016.1249
Abstrakt:

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.

Stichwörter:
Beton Modellbildung Dauerhaftigkeit Sensitivität Carbonatisierung

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