The paper summarizes the results of an experimental test campaign on enhanced reinforcing grades provided by Dual-Phase (DP) microstructure, compared to TempCore®. The DP improvement mainly concerns durability: due to their ‘mixed’ microstructure, DP steels are less affected by corrosion. Accelerated corrosion tests and mechanical tests on corroded samples were performed, using two different techniques (salt-spray chamber and impressed current density). Results highlight how different corrosion procedures can affect results, even if conclusions remain the same: DP steel bars result to be less sensitive to corrosion, showing a smaller decrease in ductility compared to TempCore bars. No relevant influence is revealed on strength performance and cyclic behaviour.

Corroded TempCore® vs dual-phase steel reinforcing bars

Caprili S.
;
Salvatore W.;Valentini R.
2021-01-01

Abstract

The paper summarizes the results of an experimental test campaign on enhanced reinforcing grades provided by Dual-Phase (DP) microstructure, compared to TempCore®. The DP improvement mainly concerns durability: due to their ‘mixed’ microstructure, DP steels are less affected by corrosion. Accelerated corrosion tests and mechanical tests on corroded samples were performed, using two different techniques (salt-spray chamber and impressed current density). Results highlight how different corrosion procedures can affect results, even if conclusions remain the same: DP steel bars result to be less sensitive to corrosion, showing a smaller decrease in ductility compared to TempCore bars. No relevant influence is revealed on strength performance and cyclic behaviour.
2021
Caprili, S.; Salvatore, W.; Valentini, R.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/1095026
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