Journal Published Online: 01 June 1995
Volume 17, Issue 1

Efficiency of Natural Greek Pozzolan in Chloride-Induced Corrosion of Steel Reinforcement

CODEN: CCAGDP

Abstract

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.

Author Information

Kouloumbi, N
National Technical University, Materials Science and Engineering Section, Athens, Greece
Batis, G
National Technical University, Materials Science and Engineering Section, Athens, Greece
Pantazopoulou, P
National Technical University, Materials Science and Engineering Section, Athens, Greece
Pages: 8
Price: $25.00
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Details
Stock #: CCA10332J
ISSN: 0149-6123
DOI: 10.1520/CCA10332J