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Development and optimisation of phase change material-impregnated lightweight aggregates for geopolymer composites made from aluminosilicate rich mud and milled glass powder

2016Journal article Open access
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dc.contributor.authorKastiukas, Gediminas
dc.contributor.authorZhou, Xiangming
dc.contributor.authorGomes, João Castro
dc.date.accessioned2016-03-21T12:42:32Z
dc.date.available2016-03-21T12:42:32Z
dc.date.issued2016
dc.description.abstractMacro-encapsulated aggregates (ME-LWAs) consisting of expanded clay lightweight aggregates (LWAs) impregnated with a paraffin wax phase change material (PCM) was produced. To fully exploit the thermal energy retaining properties of PCM, it is fundamental to retain as much of the PCM as possible within the pores of the LWA. This paper investigates 3 different commercial materials to create a total of 14 different coating regimes to determine the most efficient coating method and material regarding its ability at retaining the PCM. The ME-LWAs are then further used as aggregates in geopolymer binders made from a combination of aluminosilicate rich mud and waste glass. Physical properties such as thermal conduc- tivity and mechanical strength are determined for the geopolymer binder with and without the addition of the ME-LWA. A polyester resin was determined to be the most suitable choice of coating material for the ME-LWA, producing a practically leak-proof coating. The ME-LWA was also determined to be chem- ically neutral, showed a 42% higher thermal conductivity than the LWA in their raw state and maintained a latent heat of 57.93 J/g before and after being used in the geopolymer binder. Carbon fibres and graphite spray were used to improve the thermal conductivity of the resin coating, however no significant increase was detected. Finally, the compressive strength and thermal conductivity results achieved are acceptable for applications in buildings for enhancement of their energy efficiency.pt_PT
dc.identifier.doi10.1016/j.conbuildmat.2016.02.029pt_PT
dc.identifier.issn09500618
dc.identifier.urihttp://hdl.handle.net/10400.6/4147
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationTowards a 10-Year Vision for Global Research Data Infrastructures
dc.subjectTechnology - Materials science - Construction materialspt_PT
dc.titleDevelopment and optimisation of phase change material-impregnated lightweight aggregates for geopolymer composites made from aluminosilicate rich mud and milled glass powderpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTowards a 10-Year Vision for Global Research Data Infrastructures
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/246682/EU
oaire.citation.endPage210pt_PT
oaire.citation.startPage201pt_PT
oaire.citation.titleConstruction and Building Materialspt_PT
oaire.citation.volume110pt_PT
oaire.fundingStreamFP7
person.familyNameKastiukas
person.familyNameZhou
person.familyNameCastro-Gomes
person.givenNameGediminas
person.givenNameXiangming
person.givenNameJoão Paulo
person.identifier114453
person.identifierrgS1HvUAAAAJ
person.identifier.ciencia-id9517-8605-DCC4
person.identifier.orcid0000-0002-6148-995X
person.identifier.orcid0000-0001-7977-0718
person.identifier.orcid0000-0002-2694-5462
person.identifier.scopus-author-id7410089576
person.identifier.scopus-author-id14017800700
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa24e4071-e603-4486-9d21-8c606d251395
relation.isAuthorOfPublicationc5388a04-3654-4235-beb3-2621fb10da33
relation.isAuthorOfPublication6be39b5e-ac0a-401f-b13d-9a67a99be326
relation.isAuthorOfPublication.latestForDiscoverya24e4071-e603-4486-9d21-8c606d251395
relation.isProjectOfPublication97e67caf-284e-4e18-bb8b-5adf890c9cf9
relation.isProjectOfPublication.latestForDiscovery97e67caf-284e-4e18-bb8b-5adf890c9cf9

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