A quantitative study of the influence of non-expansive sulfoaluminate cement on the corrosion of steel reinforcement

Kalogridis, D; Kostogloudis, GC; Ftikos, C; Malami, C

dc.contributor.author	Kalogridis, D	en
dc.contributor.author	Kostogloudis, GC	en
dc.contributor.author	Ftikos, C	en
dc.contributor.author	Malami, C	en
dc.date.accessioned	2014-03-01T01:15:26Z
dc.date.available	2014-03-01T01:15:26Z
dc.date.issued	2000	en
dc.identifier.issn	0008-8846	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13503
dc.subject	sulfoaluminate	en
dc.subject	mortar	en
dc.subject	reinforcement	en
dc.subject	corrosion	en
dc.subject	pore solution	en
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.title	A quantitative study of the influence of non-expansive sulfoaluminate cement on the corrosion of steel reinforcement	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0008-8846(00)00277-5	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0008-8846(00)00277-5	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	The corrosion resistance of steel reinforced mortar specimens made from non-expansive sulfoaluminate cement was investigated using Ordinary Portland Cement (OPC) specimens as reference. The specimens were prepared and exposed in three different environments, namely, continuous exposure in tap water, continuous exposure in 3.5% NaCl solution and intermittent exposure in 3.5% NaCl solution. The steel weight loss (WL) and the half cell potential (HCP) were measured vs. exposure time, up to the age of 12 months. Pore solution extraction and analysis and porosity determination were also performed. In continuous exposure in tap water, sulfoaluminate cement provided adequate protection against corrosion. In continuous exposure in 3.5% NaCl solution, a higher corrosion was observed. In the case of intermittent exposure in 3.5% NaCl solution, the simultaneous action of free chlorides and oxygen, as well as the low pH of the pore solution, resulted in the depassivation of steel reinforcement and led to severe corrosion effect. (C) 2000 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	CEMENT AND CONCRETE RESEARCH	en
dc.identifier.doi	10.1016/S0008-8846(00)00277-5	en
dc.identifier.isi	ISI:000166031900006	en
dc.identifier.volume	30	en
dc.identifier.issue	11	en
dc.identifier.spage	1731	en
dc.identifier.epage	1740	en