The development of probabilistic corrosion hazard maps for reinforced concrete infrastructure exposed to airborne chlorides in coastal regions is addressed in the present work, with special attention to bridges. The methodology developed in this study consists of three steps. Initially, spatial distribution, construction year, and main features of the existing infrastructure are examined together with the general characteristics of the study area. The second step deals with the elaboration of relevant environmental data, including the direction and height of sea waves, sea salinity, temperature, relative humidity, rainfall, speed and direction of wind, and chloride deposition rates. Corrosion hazard maps are obtained next, wherein the corrosion current density is selected as an intensity measure. Particularly, they are elaborated for an assigned probability of exceedance given the exposure time window and concrete mixture. The presented methodology is applied to develop probabilistic corrosion hazard maps for reinforced concrete bridges exposed to the marine atmosphere at Oahu Island (Hawaii, United States). For this case-study, it is also discussed the correlation between the actual condition rating of the existing concrete bridges and the estimated corrosion hazard levels.

Probabilistic corrosion hazard maps for reinforced concrete infrastructure in coastal regions / Quaranta, Giuseppe; Giaccu, Gian Felice; Briseghella, Bruno; Nuti, Camillo. - In: STRUCTURE AND INFRASTRUCTURE ENGINEERING. - ISSN 1573-2479. - (2024), pp. 1-20. [10.1080/15732479.2024.2303646]

Probabilistic corrosion hazard maps for reinforced concrete infrastructure in coastal regions

Quaranta, Giuseppe
;
2024

Abstract

The development of probabilistic corrosion hazard maps for reinforced concrete infrastructure exposed to airborne chlorides in coastal regions is addressed in the present work, with special attention to bridges. The methodology developed in this study consists of three steps. Initially, spatial distribution, construction year, and main features of the existing infrastructure are examined together with the general characteristics of the study area. The second step deals with the elaboration of relevant environmental data, including the direction and height of sea waves, sea salinity, temperature, relative humidity, rainfall, speed and direction of wind, and chloride deposition rates. Corrosion hazard maps are obtained next, wherein the corrosion current density is selected as an intensity measure. Particularly, they are elaborated for an assigned probability of exceedance given the exposure time window and concrete mixture. The presented methodology is applied to develop probabilistic corrosion hazard maps for reinforced concrete bridges exposed to the marine atmosphere at Oahu Island (Hawaii, United States). For this case-study, it is also discussed the correlation between the actual condition rating of the existing concrete bridges and the estimated corrosion hazard levels.
2024
Bridge; chloride; coastal region; condition rating; corrosion; hazard; pitting corrosion; reinforced concrete
01 Pubblicazione su rivista::01a Articolo in rivista
Probabilistic corrosion hazard maps for reinforced concrete infrastructure in coastal regions / Quaranta, Giuseppe; Giaccu, Gian Felice; Briseghella, Bruno; Nuti, Camillo. - In: STRUCTURE AND INFRASTRUCTURE ENGINEERING. - ISSN 1573-2479. - (2024), pp. 1-20. [10.1080/15732479.2024.2303646]
File allegati a questo prodotto
File Dimensione Formato  
Quaranta_probabilistic_2024.pdf

solo gestori archivio

Tipologia: Documento in Post-print (versione successiva alla peer review e accettata per la pubblicazione)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 9.54 MB
Formato Adobe PDF
9.54 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1717003
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact