Chemical Treatment of Corroding Steel Reinforcement After Removal of Chloride-Contaminated Concrete. Collins, W. D., Weyers, R. E., & Al-Qadi, I. L. CORROSION, 49(1):74–88, January, 1993.
Paper doi abstract bibtex The increasing use of deicing salts on bridge decks has accelerated their deterioration due to chloride-induced corrosion of steel reinforcement, which causes cracking and spalling. One method being considered as a possible corrosion abatement measure is the removal of chloridecontaminated concrete followed by chemical treatment of the partially exposed rebar through ponding and/or placement of chemically treated mortar. Several commercial and experimental corrosion inhibitors were evaluated in order to determine the most effective corrosion treatment when applied in conjunction with removal of chloride-contaminated concrete. The performances of the inhibitors were evaluated in an accelerated test program. Based on post-treatment electrochemical measurements, calcium-nitrite-based corrosion inhibitor was most effective when applied as a ponding and when placed in backfilled mortar. Several other inhibitors were also sufficiently effective and were recommended for further evaluation in large-scale and field experimentation. On the other hand, several inhibitors affected the hydration process of portland cement.
@article{collins_chemical_1993,
title = {Chemical {Treatment} of {Corroding} {Steel} {Reinforcement} {After} {Removal} of {Chloride}-{Contaminated} {Concrete}},
volume = {49},
issn = {0010-9312, 1938-159X},
url = {https://meridian.allenpress.com/corrosion/article/49/1/74/160972/Chemical-Treatment-of-Corroding-Steel},
doi = {10.5006/1.3316037},
abstract = {The increasing use of deicing salts on bridge decks has accelerated their deterioration due to chloride-induced corrosion of steel reinforcement, which causes cracking and spalling. One method being considered as a possible corrosion abatement measure is the removal of chloridecontaminated concrete followed by chemical treatment of the partially exposed rebar through ponding and/or placement of chemically treated mortar. Several commercial and experimental corrosion inhibitors were evaluated in order to determine the most effective corrosion treatment when applied in conjunction with removal of chloride-contaminated concrete. The performances of the inhibitors were evaluated in an accelerated test program. Based on post-treatment electrochemical measurements, calcium-nitrite-based corrosion inhibitor was most effective when applied as a ponding and when placed in backfilled mortar. Several other inhibitors were also sufficiently effective and were recommended for further evaluation in large-scale and field experimentation. On the other hand, several inhibitors affected the hydration process of portland cement.},
language = {en},
number = {1},
urldate = {2023-09-03},
journal = {CORROSION},
author = {Collins, W. D. and Weyers, R. E. and Al-Qadi, I. L.},
month = jan,
year = {1993},
pages = {74--88},
}
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