Corrosion mitigation of buried structures by soils modification

Carbon steel samples were buried in loamy soil modified with lime, fly-ash and Portland cement in ratio of 5 and 10% during 60 days. Corrosion attack was assessed by electrochemical impedance spectroscopy. Loamy soil without modification was taken as reference. The corrosion products in rust were ch...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Córdoba,V. C, Mejía,M. A, Echeverría,F, Morales,M, Calderón,J. A
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2011
Materias:	Carbon steel soil corrosion soil modification electrochemical impedance Raman spectroscopy
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052011000300016
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-33052011000300016
record_format	dspace
spelling	oai:scielo:S0718-330520110003000162012-03-14Corrosion mitigation of buried structures by soils modificationCórdoba,V. CMejía,M. AEcheverría,FMorales,MCalderón,J. A Carbon steel soil corrosion soil modification electrochemical impedance Raman spectroscopy Carbon steel samples were buried in loamy soil modified with lime, fly-ash and Portland cement in ratio of 5 and 10% during 60 days. Corrosion attack was assessed by electrochemical impedance spectroscopy. Loamy soil without modification was taken as reference. The corrosion products in rust were characterized by Raman spectroscopy. It was found that soil with fly-ash and Portland cement can develop corrosion protection to bare steel due to the changing of formed rust on steel samples. Lepidocrocite and Goethite were found as major constituents in formed rust on buried steel in soil modified with fly-ash and cement, while Magnetite was found informed rust on buried steel in soil without addition of cementitious materials and modified with lime. According to the electrochemical results, the soil with 5% of fly-ash exhibited the anticorrosive best performance.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.19 n.3 20112011-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052011000300016en10.4067/S0718-33052011000300016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Carbon steel soil corrosion soil modification electrochemical impedance Raman spectroscopy
spellingShingle	Carbon steel soil corrosion soil modification electrochemical impedance Raman spectroscopy Córdoba,V. C Mejía,M. A Echeverría,F Morales,M Calderón,J. A Corrosion mitigation of buried structures by soils modification
description	Carbon steel samples were buried in loamy soil modified with lime, fly-ash and Portland cement in ratio of 5 and 10% during 60 days. Corrosion attack was assessed by electrochemical impedance spectroscopy. Loamy soil without modification was taken as reference. The corrosion products in rust were characterized by Raman spectroscopy. It was found that soil with fly-ash and Portland cement can develop corrosion protection to bare steel due to the changing of formed rust on steel samples. Lepidocrocite and Goethite were found as major constituents in formed rust on buried steel in soil modified with fly-ash and cement, while Magnetite was found informed rust on buried steel in soil without addition of cementitious materials and modified with lime. According to the electrochemical results, the soil with 5% of fly-ash exhibited the anticorrosive best performance.
author	Córdoba,V. C Mejía,M. A Echeverría,F Morales,M Calderón,J. A
author_facet	Córdoba,V. C Mejía,M. A Echeverría,F Morales,M Calderón,J. A
author_sort	Córdoba,V. C
title	Corrosion mitigation of buried structures by soils modification
title_short	Corrosion mitigation of buried structures by soils modification
title_full	Corrosion mitigation of buried structures by soils modification
title_fullStr	Corrosion mitigation of buried structures by soils modification
title_full_unstemmed	Corrosion mitigation of buried structures by soils modification
title_sort	corrosion mitigation of buried structures by soils modification
publisher	Universidad de Tarapacá.
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052011000300016
work_keys_str_mv	AT cordobavc corrosionmitigationofburiedstructuresbysoilsmodification AT mejiama corrosionmitigationofburiedstructuresbysoilsmodification AT echeverriaf corrosionmitigationofburiedstructuresbysoilsmodification AT moralesm corrosionmitigationofburiedstructuresbysoilsmodification AT calderonja corrosionmitigationofburiedstructuresbysoilsmodification
_version_	1714203394963406848

Corrosion mitigation of buried structures by soils modification

Ejemplares similares