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Effects of hygrothermal and natural aging on the durability of multilayer insulation systems incorporating thermal mortars with EPS and aerogel

2024Journal article Open access
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dc.contributor.authorParracha, João Luís
dc.contributor.authorVeiga, Rosário
dc.contributor.authorNunes, Lina
dc.contributor.authorFlores-Colen, Inês
dc.date.accessioned2024-07-05T10:43:38Z
dc.date.available2024-07-05T10:43:38Z
dc.date.issued2024
dc.description.abstractThis study evaluated the durability of three innovative multilayer insulation systems incorporating thermal mortars with EPS aggregates and silica aerogel granules after hygrothermal accelerated aging and one year of natural aging at an urban site in Portugal. The loss of performance was assessed after the accelerated aging and every three months of natural aging using non-destructive testing. Chemical-morphological analyses were also carried out prior to and after accelerated and natural aging. Results obtained after accelerated and natural aging were compared, thus contributing towards a deeper understanding of possible synergistic effects of several degradation agents and mechanisms on the long-term durability of multilayer insulation systems. The Coffin-Manson equation showed that the accelerated aging procedure (∼13 days of heat/rain cycles and 5 days of heat/cold cycles) adopted herein corresponds to approximately 11 years of natural aging in typical urban conditions. The results show a significant increase in capillary water absorption and drying capacity after aging. Extensive surface microcracking was observed after accelerated aging and after 3 months of natural aging, especially in the systems facing North. Traces of biological growth were detected on both the artificially and naturally aged systems, whereas aesthetic alterations were more pronounced in North-oriented specimens after 3 months of exposure, with significantly lower surface gloss and a darker tone. On the other hand, color change cannot be detected in the artificially aged systems, due to the lack of degradation agents such as pollutants or UV radiation that were not included in the accelerated aging procedure.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationParracha, J. L., Veiga, R., Nunes, L., & Flores-Colen, I. (2024). Effects of hygrothermal and natural aging on the durability of multilayer insulation systems incorporating thermal mortars with EPS and aerogel. Cement and Concrete Composites, 148, 105483. https://doi.org/10.1016/j.cemconcomp.2024.105483pt_PT
dc.identifier.doi10.1016/j.cemconcomp.2024.105483pt_PT
dc.identifier.eissn1873-393X
dc.identifier.issn0958-9465
dc.identifier.urihttp://hdl.handle.net/10400.3/7097
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0006320724000739pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectETICSpt_PT
dc.subjectAccelerated agingpt_PT
dc.subjectNatural Agingpt_PT
dc.subjectWater Resistancept_PT
dc.subjectAesthetic Performancept_PT
dc.subjectBio-susceptibilitypt_PT
dc.titleEffects of hygrothermal and natural aging on the durability of multilayer insulation systems incorporating thermal mortars with EPS and aerogelpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleCement and Concrete Compositespt_PT
oaire.citation.volume148pt_PT
person.familyNameParracha
person.familyNameVeiga
person.familyNameRibeiro Nunes
person.familyNameFlores-Colen
person.givenNameJoão Luís
person.givenNameRosário
person.givenNameLina Maria
person.givenNameInês
person.identifier930217
person.identifierA-7169-2013
person.identifier982222
person.identifier.ciencia-id3E1E-6AEE-7DCE
person.identifier.ciencia-id3519-223C-285E
person.identifier.ciencia-id2515-2AE7-A765
person.identifier.ciencia-idF91B-BD9C-CBF3
person.identifier.orcid0000-0001-6214-3400
person.identifier.orcid0000-0002-7135-8603
person.identifier.orcid0000-0001-6849-3241
person.identifier.orcid0000-0003-4038-6748
person.identifier.ridA-7100-2013
person.identifier.ridA-6635-2013
person.identifier.scopus-author-id57208393552
person.identifier.scopus-author-id22986813100
person.identifier.scopus-author-id23006201100
person.identifier.scopus-author-id23093746700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoverya15e213a-5d37-47f4-aa16-a059fc15ca4c

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