Advanced Model of Chloride Penetration Considering Concrete Heterogeneity

Le, Tuan Duc; Lehner, Petr; Konečný, Petr

doi:10.1016/j.prostr.2018.12.354

Cited by 6 publications

(2 citation statements)

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“…In this case, the ratio cv S /cv RV = 0.35 between the measured data from cylinders (cv S = 0.042) was extrapolated to the random field (cv RV = 0.14) [38]. The application of aforementioned ratio into this analysis was a modification of the simulation comparing to that of Le et al (2018) [33]. It reflected the lower variation of material property in smaller volume of the material such as concrete cylinder comparing to slab or beam cross-section.…”

Section: Numerical Examplesmentioning

confidence: 99%

“…Since the models [11,32] do not possess the modeling capability necessary to deal with the description of concrete at mesoscale heterogeneity, 2D chloride penetration probabilistic model of RC slab considering concrete heterogeneity is of interest. An earlier stage of the work including its initially preliminary results was previously published [33]. Currently, the extension to probabilistic application along with random field consideration is focused.…”

Section: Introductionmentioning

confidence: 99%

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Probabilistic Modeling of Chloride Penetration with Respect to Concrete Heterogeneity and Epoxy-Coating on the Reinforcement

Lehner

Konečný

2019

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The presented article demonstrates the probabilistic method based modeling of the 2D chloride ingress into reinforced concrete structures with respect to concrete heterogeneity and epoxy-coated steel reinforcement. Spatial change of concrete diffusion is assessed through the investigation of random variation of the ability of concrete to resist chloride ingress. Time-dependent chloride concentration at the reinforcement level in both homogeneous and heterogeneous models is comparatively considered taking into account of the influence of reinforcement protection as well as the defects and holidays of the coating. Expansion optimal linear estimation method is exploited to generate a random field for the structure at the mesoscale and correlation length is employed to simplify the modeling process. Preliminary analyses of the built model are conducted in both deterministic and probabilistic solutions under the scheme of the finite element method. Thus, possibility of such analyses is exploited.

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Section: Numerical Examplesmentioning

confidence: 99%