Performance of steel reinforcement in Portland cement and high-volume fly ash concretes exposed to chloride solution

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TypeArticle
Journal titleACI Materials Journal
Volume96
IssueSept-Oct. 5
Pages551558; # of pages: 8
Subjectsteel, high volume fly ash, chloride solution; Concrete
AbstractThis paper describes the performance if steel reinforcement in portland cement and high-volume fly ash (HVFA) concretes exposed to a chloride solution. A number of large slabs, 833 x 600 x 153 mm in size, were cast from six air-entrained concrete mixtures. Four of these mixtures were made with normal portland cement with the water-cement ratio (w/c) if the mixtures ranging from 0.32 to 0.76; the remaining two mixtures were made with the HVFA concrete with a , w/(c + FA) of 0.32. The steel reinforcing bars were placed in concrete with cover thickness ranging from 13 to 76 mm. The concrete slabs were ponded with a 8.4% sodium chloride solution for a period of 6 months, and half-cell potential linear polarization, and AC impedance techniques were applied to monitor the progress of the corrosion of steel reinforcement.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number42641
9303
NPARC number20386806
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Record identifier42d65adf-dc25-48c9-b138-852a23aaac02
Record created2012-07-25
Record modified2016-05-09
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