The effects of surface treatments on rapid chloride permeability tests

Handle URI:
http://hdl.handle.net/10754/599908
Title:
The effects of surface treatments on rapid chloride permeability tests
Authors:
Yoon, Seyoon; Oh, Sang-gyun; Ha, Juyoung; Monteiro, Paulo M.
Abstract:
Surface treatments are commonly applied to improve the chloride resistance of concrete structures exposed to saline environments. Information on chloride ingress to surface-treated concrete is mostly provided by application of the rapid chloride permeability test (RCPT); this test is short in duration and provides rapid results. This study presents a numerical formulation, based on the extended Nernst-Plank/Poisson (NPP) equation, to model the effect of the surface treatment on a sample tested by RCPT. Predictions of the model are compared to experimental measurements. The simulations show that the results from RCPT, in terms of ionic profiles and measurement of the electric field, are dependent on the effectiveness of surface treatments. During RCPT, highly effective surface treatments cause both cations and anions to flocculate at the interface between the surface treatment and the concrete, creating a local electric field. Our numerical model includes these phenomena and presents a methodology to obtain more accurate diffusivities of the surface-treated- concrete from RCPT. © 2012 Elsevier B.V. All rights reserved.
Citation:
Yoon S, Oh S, Ha J, Monteiro PM (2012) The effects of surface treatments on rapid chloride permeability tests. Materials Chemistry and Physics 135: 699–708. Available: http://dx.doi.org/10.1016/j.matchemphys.2012.05.047.
Publisher:
Elsevier BV
Journal:
Materials Chemistry and Physics
KAUST Grant Number:
KUS-l1-004021
Issue Date:
Aug-2012
DOI:
10.1016/j.matchemphys.2012.05.047
Type:
Article
ISSN:
0254-0584
Sponsors:
This publication was based on work supported in part by Award No. KUS-l1-004021, made by King Abdullah University of Science and Technology (KAUST). The authors would like to express their sincere gratitude to Hangyu Cho, for his experimental assistance.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYoon, Seyoonen
dc.contributor.authorOh, Sang-gyunen
dc.contributor.authorHa, Juyoungen
dc.contributor.authorMonteiro, Paulo M.en
dc.date.accessioned2016-02-28T06:32:11Zen
dc.date.available2016-02-28T06:32:11Zen
dc.date.issued2012-08en
dc.identifier.citationYoon S, Oh S, Ha J, Monteiro PM (2012) The effects of surface treatments on rapid chloride permeability tests. Materials Chemistry and Physics 135: 699–708. Available: http://dx.doi.org/10.1016/j.matchemphys.2012.05.047.en
dc.identifier.issn0254-0584en
dc.identifier.doi10.1016/j.matchemphys.2012.05.047en
dc.identifier.urihttp://hdl.handle.net/10754/599908en
dc.description.abstractSurface treatments are commonly applied to improve the chloride resistance of concrete structures exposed to saline environments. Information on chloride ingress to surface-treated concrete is mostly provided by application of the rapid chloride permeability test (RCPT); this test is short in duration and provides rapid results. This study presents a numerical formulation, based on the extended Nernst-Plank/Poisson (NPP) equation, to model the effect of the surface treatment on a sample tested by RCPT. Predictions of the model are compared to experimental measurements. The simulations show that the results from RCPT, in terms of ionic profiles and measurement of the electric field, are dependent on the effectiveness of surface treatments. During RCPT, highly effective surface treatments cause both cations and anions to flocculate at the interface between the surface treatment and the concrete, creating a local electric field. Our numerical model includes these phenomena and presents a methodology to obtain more accurate diffusivities of the surface-treated- concrete from RCPT. © 2012 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipThis publication was based on work supported in part by Award No. KUS-l1-004021, made by King Abdullah University of Science and Technology (KAUST). The authors would like to express their sincere gratitude to Hangyu Cho, for his experimental assistance.en
dc.publisherElsevier BVen
dc.subjectB: Finite element analysisen
dc.subjectD: Electrochemical propertiesen
dc.subjectSurface propertiesen
dc.subjectTransport propertiesen
dc.titleThe effects of surface treatments on rapid chloride permeability testsen
dc.typeArticleen
dc.identifier.journalMaterials Chemistry and Physicsen
dc.contributor.institutionUC Berkeley, Berkeley, United Statesen
dc.contributor.institutionDong Eui University, Busan, South Koreaen
kaust.grant.numberKUS-l1-004021en
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