The behavior of self-compacting concrete containing micro-encapsulated Phase Change Materials

Hunger, M; Entrop, AG; Mandilaras, I; Brouwers, HJH; Founti, M

dc.contributor.author	Hunger, M	en
dc.contributor.author	Entrop, AG	en
dc.contributor.author	Mandilaras, I	en
dc.contributor.author	Brouwers, HJH	en
dc.contributor.author	Founti, M	en
dc.date.accessioned	2014-03-01T01:32:03Z
dc.date.available	2014-03-01T01:32:03Z
dc.date.issued	2009	en
dc.identifier.issn	0958-9465	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20036
dc.subject	PCM	en
dc.subject	Self-compacting concrete	en
dc.subject	Latent heat capacity	en
dc.subject	Hydration heat	en
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	THERMAL-ENERGY STORAGE	en
dc.subject.other	HEAT	en
dc.subject.other	HYDRATION	en
dc.subject.other	BUILDINGS	en
dc.subject.other	WALLBOARD	en
dc.subject.other	SYSTEMS	en
dc.title	The behavior of self-compacting concrete containing micro-encapsulated Phase Change Materials	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.cemconcomp.2009.08.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.cemconcomp.2009.08.002	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	In order to come to a sustainable built environment the construction industry requires new energy saving concepts. One concept is to use Phase Change Materials (PCM), which have the ability to absorb and to release thermal energy at a specific temperature. This paper presents a set of experiments using different amounts of PCM in self-compacting concrete mixes. The study focuses on the direct mixing of micro-encapsulated PCM with concrete and its influence on the material properties. Therefore, the fresh concrete properties and the hardened properties are investigated. The hardened properties comprise strength tests and a thorough assessment of the thermal properties. It will be shown that increasing PCM amounts lead to lower thermal conductivity and increased heat capacity, which both significantly improve the thermal performance of concrete and therefore save energy. On the other hand a significant loss in strength and micro-structural analysis both indicate that a large part of the capsules is destroyed during the mixing process and releases its paraffin wax filling into the surrounding matrix. However, the compressive strength of our specimens still satisfies the demands of most structural applications. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	CEMENT & CONCRETE COMPOSITES	en
dc.identifier.doi	10.1016/j.cemconcomp.2009.08.002	en
dc.identifier.isi	ISI:000271850300006	en
dc.identifier.volume	31	en
dc.identifier.issue	10	en
dc.identifier.spage	731	en
dc.identifier.epage	743	en