Materiales de Construcción, Vol 56, No 284 (2006)

Electrochemical extraction of chlorides from reinforced concrete: variables affecting treatment efficiency


https://doi.org/10.3989/mc.2006.v56.i284.15

M. J. Sánchez
Dpt. Enginyeria de la Construcció, Obres Públiques i Infrastructura Urbana, Universitat d’Alacant, Alicante, Spain

P. Garcés
Dpt. Enginyeria de la Construcció, Obres Públiques i Infrastructura Urbana, Universitat d’Alacant, Alicante, Spain

M. A. Climent
Dpt. Enginyeria de la Construcció, Obres Públiques i Infrastructura Urbana, Universitat d’Alacant, Alicante, Spain

Abstract


This paper reports the results of applying electrochemical chloride extraction (ECE) to a series of chloride-contaminated concrete specimens. Experimental conditions were varied to study the efficiency of this technique under different circumstances. The survey covered the possible relationship between efficiency and the location of the sampling point, current density, type of concrete and treatment intermittence. Experiments were also conducted with different reinforcement configurations used in standard structural members such as columns and beams to ascertain the impact of rebar geometry.

Keywords


electrochemical extraction of chlorides; chlorides; concrete; corrosion; efficiency

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References


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