Alkali leaching control of construction and demolition waste based geopolymers

Kioupis, D.; Skaropoulou, A.; Tsivilis, S.; Kakali, G.

dc.contributor.author	Kioupis, D.	en
dc.contributor.author	Skaropoulou, A.	en
dc.contributor.author	Tsivilis, S.	en
dc.contributor.author	Kakali, G.	en
dc.date.accessioned	2018-07-24T15:09:50Z
dc.date.available	2018-07-24T15:09:50Z
dc.date.issued	2018-07-24
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/47404
dc.language.iso	en	en
dc.rights	Default License
dc.subject	CDW	en
dc.subject	bricks	en
dc.subject	geopolymers	en
dc.subject	alkali	en
dc.subject	leaching	en
dc.title	Alkali leaching control of construction and demolition waste based geopolymers	en
heal.type	conferenceItem
heal.classification	Construction Materials	en
heal.classification	Wastes	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2017
heal.bibliographicCitation	D. Kioupis, A. Skaropoulou, S. Tsivilis, G. Kakali, Alkali leaching control of construction and demolition waste based geopolymers, 2nd International Congress on Materials & Structural Stability (CMSS-2017), Rabat, Morocco, (2017), 1-5.	en
heal.abstract	This study regards the synthesis of waste brick geopolymers and the evaluation of their alkali leaching potential. Geopolymers with varied alkali to Al molar ratios were prepared and their alkali leaching potential was measured. In order to improve the efflorescence of the waste brick geopolymers, KOH was used instead of NaOH in the activation solution, Ca cations were incorporated through the partial substitution of the brick powder by ground granulated blast furnace slag or extra Al was introduced in the activation solution. The results showed that the leachability of the products is close related to the alkali content of the activation solution while the use of K ions in the starting mixtures reduced the leachability potential. The same effect was observed in the case of the extra Al ions incorporation. The partial substitution of the wastes bricks by slag showeda slight increase of leachability even though denser materials with enhanced strengths were prepared.	en
heal.fullTextAvailability	true
heal.conferenceName	2nd International Congress on Materials & Structural Stability (CMSS-2017)	en
heal.conferenceItemType	full paper