Efficiency of natural Greek pozzolan in chloride-induced corrosion of steel reinforcement

 
see the original item page
in the repository's web site and access all digital files if the item*
share




1995 (EN)
Efficiency of natural Greek pozzolan in chloride-induced corrosion of steel reinforcement (EN)

Pantazopoulou, Paraskevi (EN)
Kouloumbi, Niki (EN)
Batis, George (EN)

N/A (EN)

This experimental work estimates the corrosion behavior in a sodium-chloride environment of steel reinforcements in mortar specimens with 0, 15, and 30% Greek natural pozzolan, cured either for 1, 7, or 28 days. The corrosion resistance was evaluated by measuring the corrosion potential development of steel rebars, their gravimetric mass loss, their anodic potentio-dynamic behavior, and the total- and free-chloride content of the mortars. Additionally, their mineralogical composition was determined by X-ray diffraction (XRD) analysis. The increase of curing time, as well as the addition of the Greek natural pozzolan, for both percentages tested, improved the corrosion behavior. The combination of the pozzolan addition with longer curing time reduces the steel rebars mass loss up to a level of about 40% after five months of exposure. (EN)

journalArticle

Curing time (EN)
Steel reinforcement (EN)
Composition (EN)
Addition reactions (EN)
Mortar (EN)
Corrosion potential (EN)
Gravimetric mass loss (EN)
Pozzolan (EN)
STEEL REINFORCEMENT (EN)
Sodium chloride environment (EN)
Chloride induced corrosion (EN)
CHLORIDE CORROSION (EN)
Steel (EN)
Corrosion resistance (EN)
Natural Greek pozzolan (EN)
X ray diffraction analysis (EN)
Corrosion (EN)
Curing (EN)
Reinforcement (EN)
NATURAL POZZOLAN (EN)
Anodic potentio dynamic behavior (EN)
CURING TIME (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Cement, Concrete and Aggregates (EN)

1995


ASTM, Philadelphia, PA, United States (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)