Errors introduced by the guard ring device in the on-site measurement of rebar corrosion rates.

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dc.contributor.authorFelin, S.
dc.contributor.authorGonzalez, J. A.
dc.contributor.authorAndrade, C.
dc.contributor.authorRZ-Maribona, I.
dc.contributor.authorPage, C. L.
dc.contributor.authorTreadway, K. W.J.
dc.contributor.authorBamforth, P. B.
dc.contributor.institutionSG
dc.date.accessioned2024-07-24T11:48:09Z
dc.date.available2024-07-24T11:48:09Z
dc.date.issued1990
dc.description.abstractIn 1987 the authors published their first paper on the possibilities of on-site measurement of rebar corrosion rate. In that paper the transmission line model was applied in order to calculate the critical length reached by an electrical signal along a rebar and therfore, the corrosion rate by unit of metal and concrete surface. Other papers have been recently published based in the same transmission line model. In the present paper the experimental errors which the guard ring induces, are commented upon. For this purpose beams and slabs were fabricated. The corrosion rate was measured by different methods: apparent polarization resistance, attentuation of potential and with the guard ring. The results allow comparison of the reliability of the different methods of measuring the real Rp value and therefore, of the corrosion rates. Particularly, the guard ring cannot completely confine the electrical signal when the steel is passive and the confinement is only partial in the case of active corrosion, giving therefore higher corrosion intensity values than the real ones, especially in the case of the slabs (two dimensions). (A)en
dc.description.statusPeer reviewed
dc.identifier.citationFelin , S , Gonzalez , J A , Andrade , C , RZ-Maribona , I , Page , C L , Treadway , K W J & Bamforth , P B 1990 , Errors introduced by the guard ring device in the on-site measurement of rebar corrosion rates. in Unknown Host Publication Title . London, U.K., Elsevier Applied Science .
dc.identifier.isbn1851664874
dc.identifier.isbn9781851664870
dc.identifier.urihttps://hdl.handle.net/11556/1737
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85041141263&partnerID=8YFLogxK
dc.language.isoeng
dc.publisherLondon, U.K., Elsevier Applied Science
dc.relation.ispartofUnknown Host Publication Title
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsGeneral Engineering
dc.titleErrors introduced by the guard ring device in the on-site measurement of rebar corrosion rates.en
dc.typebook part
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