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Hardened Portland blast-furnace slag cement pastes II. The corrosion behavior of steel reinforcement

✍ Scribed by V.K. Gouda; M.A. Shater; R.Sh. Mikhail

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 517 KB
Volume: 5
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(75)90103-9

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✦ Synopsis

The corrosion behavior of reinforcing steel embedded in various slag cement pastes was studied using the galvanostatic polarization technique. The corrosion resistance is aDnreciably affected by the degree of fineness of the dry slag cement. In Dastes produced from high Blaine area cement, the behavior of embedded steel was very close to that in normal or type I nortland cement paste, and is much better than a low Blaine area cement. W/C ratios of 0.25 and (1.40 provided a better passivating medium as compared with W/C ratios of C).18 and 0.7~. Effects of lime or gynsum addition were also investigated and comparatively studied for their action on the corrosion of embedded steel. The results obtained were suDoorted by corrosion rates obtained using the linear polarization technique.

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