Title: Evaluation of service life design for different chloride diffusion and carbonation models applied to Belgian concretes
Authors: De Winter, Liesbet ×
Minne, Peter
Caspeele, Robby
De Schutter, Geert #
Issue Date: 21-Sep-2016
Host Document: Challenges in Design and Construction of an Innovative and Sustainable Built Environment vol:1 issue:1 edition:1 pages:1249-1256
Conference: IABSE edition:1 location:Stockholm date:21-23 September 2016
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 of fib bulletin 34 [1] and the recent outcomes reported in fib bulletin 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.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Technologiecluster Bouw
Construction TC, Technology Campuses Ghent and Aalst
× corresponding author
# (joint) last author

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