Exploitation of the solid waste of porfiritis in pozzolanic cements

Batis, G; Pantazopoulou, P; Stavropoulou, O

dc.contributor.author	Batis, G	en
dc.contributor.author	Pantazopoulou, P	en
dc.contributor.author	Stavropoulou, O	en
dc.date.accessioned	2014-03-01T02:51:40Z
dc.date.available	2014-03-01T02:51:40Z
dc.date.issued	2008	en
dc.identifier.issn	17433541	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35598
dc.subject	Carbonation	en
dc.subject	Chlorides corrosion	en
dc.subject	Porfiritis	en
dc.subject	Pozzolanic cements	en
dc.subject.other	cement	en
dc.subject.other	conference proceeding	en
dc.subject.other	corrosion	en
dc.subject.other	environmental conditions	en
dc.subject.other	sodium chloride	en
dc.subject.other	solid waste	en
dc.title	Exploitation of the solid waste of porfiritis in pozzolanic cements	en
heal.type	conferenceItem	en
heal.identifier.primary	10.2495/WM080231	en
heal.identifier.secondary	http://dx.doi.org/10.2495/WM080231	en
heal.publicationDate	2008	en
heal.abstract	The objective of this paper is to investigate the possibility of introducing a natural pozzolan named porfiritis, a natural waste product from the gold mines located in N.E. Chalkidiki Greece, as a supplementary cementing material. Blended cement was produced by replacing PC with 20% w/w porfiritis for the evaluation of the pozzolanic cement properties. Reinforced mortar specimens were either partially immersed in 3.5% w/w NaCl solution or exposed to atmospheric conditions, for a period of 6 months. The experimental methods used were: corrosion potential, corrosion rate by the Linear Polarization method, mass loss, carbonation depth and compressive strength. Based on the results of this study, it is concluded that the use of the porfiritic deposit as a blended cement constituent improves the corrosion behaviour of the mortar specimens, while no serious detrimental effect on the mechanical behaviour of the concrete is detected.	en
heal.journalName	WIT Transactions on Ecology and the Environment	en
dc.identifier.doi	10.2495/WM080231	en
dc.identifier.volume	109	en
dc.identifier.spage	213	en
dc.identifier.epage	222	en