Test methods for on site measurement of resistivity of concrete

Polder, R.B.; Andrade, Carmen; Elsener, Bernhard; Vennesland, Øystein; Gulikers, J.; Weidert, R.; Raupach, Michael

doi:10.1007/bf02480599

Cited by 240 publications

(138 citation statements)

References 11 publications

(14 reference statements)

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“…Their findings showed a high correlation coefficient in the range between 0.94-0.99, representing the suitability of using electrical resistivity technique to evaluate the quality control of high performance concrete and prediction of corrosion rate. Another possible method is to measure electrical resistance of concrete cylinder by using plate electrodes on the end of the sample (Polder et al 2004;Newlands et al 2008). This test can be performed by utilizing conductive medium and needs to be remembered that surface finish needs to be flat as much as possible for proper contact pressure and sponges were used between sample and plates to obtain better contact.…”

Section: Introductionmentioning

confidence: 99%

Correlation Between Bulk and Surface Resistivity of Concrete

Ghosh

Tran

2014

Int J Concr Struct Mater

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Electrical resistivity is an important physical property of portland cement concrete which is directly related to chloride induced corrosion process. This study examined the electrical surface resistivity (SR) and bulk electrical resistivity (BR) of concrete cylinders for various binary and ternary based high-performance concrete (HPC) mixtures from 7 to 161 days. Two different types of instruments were utilized for this investigation and they were 4 point Wenner probe meter for SR and Merlin conductivity tester for bulk resistivity measurements. Chronological development of electrical resistivity as well as correlation between two types of resistivity on several days was established for all concrete mixtures. The ratio of experimental surface resistance to bulk resistance and corresponding resistivity was computed and compared with theoretical values. Results depicted that bulk and SR are well correlated for different groups of HPC mixtures and these mixtures have attained higher range of electrical resistivity for both types of measurements. In addition, this study presents distribution of surface and bulk resistivity in different permeability classes as proposed by Florida Department of Transportation (FDOT) specification from 7 to 161 days. Furthermore, electrical resistivity data for several HPC mixtures and testing procedure provide multiple promising options for long lasting bridge decks against chloride induced corrosion due to its ease of implementation, repeatability, non-destructive nature, and low cost.

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Section: Introductionmentioning

confidence: 99%

Correlation Between Bulk and Surface Resistivity of Concrete

Ghosh

Tran

2014

Int J Concr Struct Mater

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“…In the case of RCA concrete, it has greater porosity than conventional concretes (Gómez, 2002;Tam et al, 2005;Etxeberría et al, 2007). On the other hand, it has been demonstrated that concrete electric resistivity is associated with the microstructure of cement matrix (pores distribution) and with the corrosion rate of reinforced steel (Tumidajski et al, 1996;Tumidajski, 2005;Polder et al, 2000). Therefore, the electric resistivity is used as a parameter to evaluate concrete durability.…”

Section: As a Results Of The Significant Environmental Impact Causedmentioning

confidence: 99%

Corrosión por cloruros del acero de refuerzo embebido en concreto con agregado grueso reciclado y materiales cementantes suplementarios

et al. 2013

Rev. ing. constr.

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“…These samples of steel 10 505 grade (B 500 according to EN 10080;^SN 42 0139) with diameters of (6,8,10,12,14,16,18,20,22,25,28,32) mm with a uniform length of 2.0 m. The reason for using the MER method on the steel bars was to find out the meaningful ability of this method or to estimate the limitation of its usage.…”

Section: Steel Samplesmentioning

confidence: 99%

“…The values K nn = 3.0·10 6 MN/m 3 and K tt = 1.0·10 -3 MN/m 3 were considered to transfer the compressive stresses from reinforcement to concrete in The value p* = 2.488 % was determined from Equation (8). This value best represents the measured values from the experiment (curves in Figure 11).…”

Section: Numerical Modeling Of Reinforcement Corrosionmentioning

confidence: 99%

“…For such a precise determination of the corrosion activity process of steel reinforcement, the methods such as the polarization methods, method of electrical resistance, method of half-cell potential, acoustic-emission method and others are applied. [8][9][10][11][12][13][14][15][16] The development of non-destructive methods towards not only the methods of measurement by the method of half-cell potential, but also to other methods (polarization method, method of electrical resistance etc. ).…”

Section: Introductionmentioning

confidence: 99%

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Corrosion determination of reinforcement using the electrical resistance method

Brodňan¹,

Koteš²,

Vaněrek³

et al. 2017

Mater. Tehnol.

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The determination of reinforcement corrosion using the electrical resistance method of embedded bars in the concrete beams in laboratory conditions is described in this paper. For comparison, the achieved data from non-destructive measurements were compared to data from subsequent destructive tests when weight losses were recorded for each of the steel bars after their exposure time. Laboratory measurements of the reinforcements were realized particularly for verification of whether the electrical resistance method could be suitable for an in-situ corrosion-evaluation process. The next part of the research was focused on the corrosion simulation of the steel reinforcement in reinforced concrete. The effect of corrosion was simulated by a nonlinear numerical analysis with the program ATENA 3D using corrosion-rate data from a laboratory test. Keywords: corrosion, steel, reinforcement, analysis, numerical modeling V~lanku je opisano dolo~anje korozije palic, vgrajenih v betonske stebre, v laboratorijskih pogojih z uporabo metode elektri~ne upornosti. Izvedena je bila primerjava podatkov iz neporu{nih meritev s podatki iz poru{itvenih testov, ko je bilo izmerjeno zmanj{anje te`e vsake palice po dolo~enem~asu. Laboratorijske meritve palic so bile izvedene predvsem za poskus,~e je metoda elektri~ne upornosti primerna za oceno korozije in situ. Drugi del raziskave je bil usmerjen v simulacijo korozije jeklenih palic v armiranem betonu. Vpliv korozije je bil simuliran z nelinearno numeri~no analizo, s programom ATENA 3D, z uporabo korozijskih podatkov iz laboratorijskega preizkusa.

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Test methods for on site measurement of resistivity of concrete

Cited by 240 publications

References 11 publications

Correlation Between Bulk and Surface Resistivity of Concrete

Correlation Between Bulk and Surface Resistivity of Concrete

Corrosión por cloruros del acero de refuerzo embebido en concreto con agregado grueso reciclado y materiales cementantes suplementarios

Corrosion determination of reinforcement using the electrical resistance method

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