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Spent equilibrium catalyst as internal curing agent in UHPFRC

2019-11Journal article Restricted access
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dc.contributor.authorMatos, Ana Mafalda
dc.contributor.authorNunes, Sandra
dc.contributor.authorCosta, Carla
dc.contributor.authorAguiar, J. B.
dc.date.accessioned2020-04-17T14:23:15Z
dc.date.available2020-04-17T14:23:15Z
dc.date.issued2019-11
dc.description.abstractThe main goal of the current paper is to optimize ultra-high performance cementitious material (UHPC) mixes incorporating the spent equilibrium catalyst (ECat) to mitigate autogenous shrinkage. Design of experiments approach was used to optimize mixtures targeting different engineering properties, namely, self-compactibility, low early-age shrinkage and cracking risk, improved durability and high mechanical performance. The statistical models established indicated that ECat exhibits a strong positive effect on the autogenous shrinkage mitigation of UHPC attributed to the water absorbed in the porous of ECat particles. The proposed optimal UHPC mixture represents the best compromise between low autogenous shrinkage - 32% of reduction - and high resistivity at 28 days without impairing self-compatibility and compressive strength. This optimal UHPC combined with 3% high-strength steel fibres (l(f)/d(f) = 65) proved to be comparable to other Ultra High-Performance Fibre Reinforced Composites (UHPFRC), in terms of mechanical behaviour, and more eco-friendly and cost-efficient than UHPCs reported in the literature.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMATOS, Ana Mafalda; [et al] – Spent equilibrium catalyst as internal curing agent in UHPFRC. Cement and Concrete Composites. ISSN 0958-9465. Vol. 104 (2019), pp. 1-14pt_PT
dc.identifier.doi10.1016/j.cemconcomp.2019.103362pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/11469
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUID/ECI/04708/2019 - Construct - Instituto de I&D em Estruturas e Construções - FCT/MCTES (PIDDAC)pt_PT
dc.relationPOCI-01-0145-FEDER-031777 - FEDER funds through COMPETE2020 -Programa Operacional Competitividade e Internacionalização (POCI)pt_PT
dc.relationPOCI-01-0145-FEDER-031777 - National funds (PIDDAC) through FCT/MCTESpt_PT
dc.relationPD/BD/113636/2015 - FCTpt_PT
dc.relation.publisherversionhttps://pdf.sciencedirectassets.com/271643/1-s2.0-S0958946519X00086/1-s2.0-S0958946518313568/main.pdf?X-Amz-Date=20200417T141111Z&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Signature=cf4872577d32cdfaedd565a8c53f93742b5771fdb2657b4e96e3dcd04e0fbda1&X-Amz-Credential=ASIAQ3PHCVTYRGUJBAUL%2F20200417%2Fus-east-1%2Fs3%2Faws4_request&type=client&tid=prr-712e2db7-2d25-4ff1-adde-0c474c91fb85&sid=fb0115452884594d4b4abfb632ca5b29439cgxrqb&pii=S0958946518313568&X-Amz-SignedHeaders=host&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEKX%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJGMEQCIBrsxQML7IDzBHhz%2FbRSwvrrVWkjawnxImJNc%2FkWGNWVAiARWJ4ZnDUIPDW8SLNnB6RWtgH019rXxzg0eIdMwCJo1iq9Awi%2B%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAMaDDA1OTAwMzU0Njg2NSIM8M%2F2Vi1SypENf5yVKpEDuPvnb0P2sso3RPs10GWh01VCQKQC1IeGaVxyhtpq0vFW7KQ%2BeXnUjmzHgd02u2Af31bymltE%2BRJznk74SRm9fdJMHQ6CMB92Y2nzza7xd3k%2F6B9sufDymIOLaZ8tLS1NtgROiAuWwK9uBBG7BIz739uC8eLc79Vk4ewSWbCl1tRkB%2B2i6oUE%2BPcpCrPxDhz2Og3Fh5M1kY80XFbGtHM6nz4fhHEYyBYQCd5BWL%2FwIqL4kLp1BwGkP49UY52LF6ccaKECgvzPweFp71ztyXld9%2F%2FYbEayqereZzRTLSZMPfRhLtoHjNSgFz%2FHY4j1nPUUoIqOqJF6JgrE9l11Vc328DzMSLcmj5ctsBp9UhDyr3Hm7lUsZ4EG6w1UMWwjUcg7%2FWyMFHkXOXAoxQy%2BiM%2BXVgKUpvTbBqMsOSUjx9n36AztuetfGXYXsFCSTJaxtvmtPPO%2BRfNxrWV3bBllLaik%2Bhahmbd9EA7SKgpnzCTVr69j%2FRNjl1hVrt8b0FLEkcgFKnNSmA2ubK37RqojR%2Bf1cuswpMTm9AU67AGE9dSpazn4IRhY6bijmUqfN2LIacgjMkHDJ2INTaz39ph9bsOIB8Tbfbffj9i75esJnh3ZP%2BsMgDJIFDm0oznIXRImzMGLEwkVdIxMAXbzPhWdCfDk78KDPLgq%2BvLk%2FZZV75pIJMoC9T10nRAFgL%2BH%2FUlf0vIpYFzf8O7ES2oZ7h1XdmklLwXssopiFg32m3S7%2FUMOIas1Qj4pU8CC4BqU4MP96dpj2vYor7FsI1uKDsLTFFpHFiPJj%2FoQyqFPHC0FXu4B5b3Kuefgyl5dcK5rWurF8nGDVPQwV3eq%2FzHXJz%2FLAh9tcqGyIQM8WA%3D%3D&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&X-Amz-Expires=300&hash=cfff34d6ae26501062725c926438665eec6a3600a48a071e8eec13a27b60e299pt_PT
dc.subjectUltra-high performance fibre reinforced cementitious composites (UHPFRC)pt_PT
dc.subjectSpent equilibrium catalyst (ECat)pt_PT
dc.subjectStatistical factorial designpt_PT
dc.subjectAutogenous shrinkagept_PT
dc.subjectDurabilitypt_PT
dc.subjectSustainabilitypt_PT
dc.titleSpent equilibrium catalyst as internal curing agent in UHPFRCpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage14pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleCement and Concrete Compositespt_PT
oaire.citation.volume104pt_PT
person.familyNameMatos
person.familyNameNunes
person.familyNameCosta
person.familyNameAguiar
person.givenNameAna Mafalda
person.givenNameSandra
person.givenNameCarla
person.givenNameJose
person.identifierR-000-G5N
person.identifier.ciencia-idC114-C51C-81E5
person.identifier.ciencia-id7914-3BF1-F9EC
person.identifier.ciencia-id921F-6C75-53CC
person.identifier.orcid0000-0002-1646-4665
person.identifier.orcid0000-0002-4876-2587
person.identifier.orcid0000-0003-4222-4734
person.identifier.orcid0000-0003-3954-5721
person.identifier.ridAAB-4944-2020
person.identifier.ridB-6597-2009
person.identifier.scopus-author-id36767370700
person.identifier.scopus-author-id7005928815
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication1ed7079b-5955-4712-968e-820629764c4a
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relation.isAuthorOfPublicatione1edef6b-5ca9-4ce4-be00-25e157628e49
relation.isAuthorOfPublication.latestForDiscoverye1edef6b-5ca9-4ce4-be00-25e157628e49

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