Corrosion of carbon steel rebars is the main cause of failure of reinforced concrete structures. To prevent and delay the occurrence of corrosion, a high quality concrete with a proper cover and a good mixture proportion should be designed. Additional prevention methods are used if severe environmental conditions occur, or when structures require very long service life. Corrosion inhibitors seem to be attractive because of their low cost and easy handling, compared to other preventive methods. This paper analyses results of a 10-year investigation on the effectiveness of four commercial inhibitors and two pure organic compounds in preventing chloride induced corrosion. Tested inhibitors seem to be able to increase time-to-corrosion: their effects on chloride penetration rate and on critical chloride threshold are discussed.

Effect of corrosion inhibitors on the initiation of chloride-induced corrosion on reinforced concrete structures

ORMELLESE, MARCO;BOLZONI, FABIO MARIA;LAZZARI, LUCIANO;PEDEFERRI, PIETRO
2008-01-01

Abstract

Corrosion of carbon steel rebars is the main cause of failure of reinforced concrete structures. To prevent and delay the occurrence of corrosion, a high quality concrete with a proper cover and a good mixture proportion should be designed. Additional prevention methods are used if severe environmental conditions occur, or when structures require very long service life. Corrosion inhibitors seem to be attractive because of their low cost and easy handling, compared to other preventive methods. This paper analyses results of a 10-year investigation on the effectiveness of four commercial inhibitors and two pure organic compounds in preventing chloride induced corrosion. Tested inhibitors seem to be able to increase time-to-corrosion: their effects on chloride penetration rate and on critical chloride threshold are discussed.
2008
File in questo prodotto:
File Dimensione Formato  
Mat-Corr - Final paper - fulltext.pdf

Accesso riservato

: Altro materiale allegato
Dimensione 430.56 kB
Formato Adobe PDF
430.56 kB Adobe PDF   Visualizza/Apri

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/11311/544481
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 49
  • ???jsp.display-item.citation.isi??? 29
social impact