Bond strength of hot – dip galvanized reinforcement (B500B) with concrete

Bond strength of hot – dip galvanized reinforcement (B500B) with concrete

This paper evaluates the effect of initial corrosion damage to the surface of the hot - dip galvanized steel coating in fresh concrete on its final bond strength. The tests were performed on uncoated and hot-dip galvanized ribbed reinforcements. The measurement of bond stress (τm) according to the s...

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Veröffentlicht in:Metalurgija 2016-07, Vol.55 (3), p.337
Hauptverfasser: Pokorný, P., Dobiáš, D., Vokáč, M.
Format: Artikel
Sprache:eng
Schlagworte:
ASTM C234
corrosion
hot-dip galvanized coating
pull – out test
steel
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Zusammenfassung:This paper evaluates the effect of initial corrosion damage to the surface of the hot - dip galvanized steel coating in fresh concrete on its final bond strength. The tests were performed on uncoated and hot-dip galvanized ribbed reinforcements. The measurement of bond stress (τm) according to the standard procedure (ASTM C234; ČSN 73 1328) revealed decreased bond strength of the coated reinforcement. Both types of reinforcement exhibit similar values of maximum shear stress (τ). To make some general conclusion, the bond strength also needs to be verified on smooth profiles.
ISSN:0543-5846
1334-2576