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Title: Study of chloride ion migration in reinforced concrete under cathodic protection. Final report

Abstract

The migration of chloride ions in concrete with steel reinforcement was investigated. Mortar blocks (15 cm x 15 cm x 17 cm) of various composition (water to cement ratio, chloride ion content) were cast with an iron mesh cathode imbedded along one face and a thermally sprayed zinc anode applied to the opposite face. Current densities of 0.033 and 0.066 A (sq m) were applied to the blocks over a period of one year at constant temperature and humidity. The zinc face was covered with a pond of saturated calcium hydroxide to prevent polarization of the zinc-concrete interface. Over the course of polarization, potential vs. time curves were recorded and samples of mortar were extracted for determination of chloride concentration.

Authors:
; ; ;
Publication Date:
Research Org.:
Oregon State Univ., Dept. of Chemistry, Corvallis, OR (United States); Federal Highway Administration, Salem, OR (United States); Oregon Dept. of Transportation, Salem, OR (United States)
OSTI Identifier:
698004
Report Number(s):
PB-99-175671/XAB
CNN: Contract SPR-357; TRN: 92981169
Resource Type:
Technical Report
Resource Relation:
Other Information: DN: See also PB94-189479.; PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; REINFORCED CONCRETE; CATHODIC PROTECTION; CHLORIDES; POROSITY; STEELS; ATOM TRANSPORT; CORROSION

Citation Formats

Orlova, N.V., Westall, J.C., Rehani, M., and Koretsky, M.D. Study of chloride ion migration in reinforced concrete under cathodic protection. Final report. United States: N. p., 1999. Web.
Orlova, N.V., Westall, J.C., Rehani, M., & Koretsky, M.D. Study of chloride ion migration in reinforced concrete under cathodic protection. Final report. United States.
Orlova, N.V., Westall, J.C., Rehani, M., and Koretsky, M.D. Wed . "Study of chloride ion migration in reinforced concrete under cathodic protection. Final report". United States.
@article{osti_698004,
title = {Study of chloride ion migration in reinforced concrete under cathodic protection. Final report},
author = {Orlova, N.V. and Westall, J.C. and Rehani, M. and Koretsky, M.D.},
abstractNote = {The migration of chloride ions in concrete with steel reinforcement was investigated. Mortar blocks (15 cm x 15 cm x 17 cm) of various composition (water to cement ratio, chloride ion content) were cast with an iron mesh cathode imbedded along one face and a thermally sprayed zinc anode applied to the opposite face. Current densities of 0.033 and 0.066 A (sq m) were applied to the blocks over a period of one year at constant temperature and humidity. The zinc face was covered with a pond of saturated calcium hydroxide to prevent polarization of the zinc-concrete interface. Over the course of polarization, potential vs. time curves were recorded and samples of mortar were extracted for determination of chloride concentration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Technical Report:
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