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V. Smilauer¹, L. Jendele² and J. Cervenka²

¹Czech Technical University in Prague in Prague, Faculty of Civil Engineering, Czech Republic
²Cervenka Consulting Ltd., Prague, Czech Republic

doi:10.4203/ccp.102.215

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V. Smilauer, L. Jendele, J. Cervenka, "Prediction of Carbonation and Chloride Ingress in Cracked Concrete Structures", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 215, 2013. doi:10.4203/ccp.102.215

Keywords: carbonation, chloride ingress, durability, crack, transport, induction period.

Summary

Carbonation and chloride ingress are the most relevant damaging mechanisms for steel corrosion in reinforced concrete structures. Massive utilization of supplementary cementitious materials in cement binders implies recalibration of existing models for these phenomena. The carbonation model formulated by Papadakis and the model for chloride ingress from Kwon are extended for crack effects, which accelerates both damaging mechanisms. Both models were reformulated in an incremental form, allowing a gradual crack growth. It was found that the crack width 0.3 mm decreases the induction time approximately five times when compared to uncracked concrete. Validation on in situ samples shows good predictions for chloride profiles.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 215 Prediction of Carbonation and Chloride Ingress in Cracked Concrete Structures V. Smilauer¹, L. Jendele² and J. Cervenka² ¹Czech Technical University in Prague in Prague, Faculty of Civil Engineering, Czech Republic ²Cervenka Consulting Ltd., Prague, Czech Republic doi:10.4203/ccp.102.215 purchase the full-text of this paper Full Bibliographic Reference for this paper V. Smilauer, L. Jendele, J. Cervenka, "Prediction of Carbonation and Chloride Ingress in Cracked Concrete Structures", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 215, 2013. doi:10.4203/ccp.102.215 Keywords: carbonation, chloride ingress, durability, crack, transport, induction period. Summary Carbonation and chloride ingress are the most relevant damaging mechanisms for steel corrosion in reinforced concrete structures. Massive utilization of supplementary cementitious materials in cement binders implies recalibration of existing models for these phenomena. The carbonation model formulated by Papadakis and the model for chloride ingress from Kwon are extended for crack effects, which accelerates both damaging mechanisms. Both models were reformulated in an incremental form, allowing a gradual crack growth. It was found that the crack width 0.3 mm decreases the induction time approximately five times when compared to uncracked concrete. Validation on in situ samples shows good predictions for chloride profiles. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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