Innovative low-cost system for early age E-modulus monitoring of cement pastes : validation and application to nanosilica-added and limestone-calcined clay cements

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorRibeiro, Renan Rocha-
Autor(es): dc.creatorSousa, Matheus Ian Castro-
Autor(es): dc.creatorRêgo, João Henrique da Silva-
Autor(es): dc.creatorLameiras, Rodrigo de Melo-
Data de aceite: dc.date.accessioned2022-08-15T13:38:34Z-
Data de disponibilização: dc.date.available2022-08-15T13:38:34Z-
Data de envio: dc.date.issued2022-05-05-
Data de envio: dc.date.issued2022-05-05-
Data de envio: dc.date.issued2022-01-04-
Fonte completa do material: dc.identifierhttps://repositorio.unb.br/handle/10482/43648-
Fonte completa do material: dc.identifierhttps://doi.org/10.1617/s11527-021-01849-w-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/713524-
Descrição: dc.descriptionThe EMM-ARM (Elastic Modulus Measurement through Ambient Response Method) is an experimental technique that allows the determination of the E-modulus evolution curve of cementitious materials since casting. This work presents a validation of an innovative low-cost EMM-ARM test system and its use to study very early age (until 3 days) E-modulus evolution of cement pastes produced with a 1% nanosilica-added cement and a limestonecalcined clay (LC3 ) cement, produced with 1:2 claylimestone ratio and 50% clinker replacement. The tests produced, for the first time, continuous data about the early age E-modulus evolution, hydration degree and final setting time of these materials at the first 3 days of age. Compressive strength and Mercury Intrusion Porosimetry tests were also performed for complementary analysis. The validation results indicated the low-cost innovative system departed only up to 6.33% from reference results and had a coefficient of variation of the order of 4.50%. The application of the system on the studied cements revealed the nanosilica-added and LC3 cement pastes reached, respectively, 220% and 50% of an ordinary Portland cement (OPC) paste E-modulus at 12 h of age, and 180% and 70% at 24 h. The nanosilica-added and LC3 E-modulus gap to OPC paste progressively reduced after 3 days of age to 113% and 91%, respectively, tending to remain at this level at later ages.-
Publicador: dc.publisherSpringer-
Relação: dc.relationhttps://link.springer.com/article/10.1617/s11527-021-01849-w-
Direitos: dc.rightsAcesso Restrito-
Palavras-chave: dc.subjectNanosílica-
Palavras-chave: dc.subjectEMM-ARM-
Título: dc.titleInnovative low-cost system for early age E-modulus monitoring of cement pastes : validation and application to nanosilica-added and limestone-calcined clay cements-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional – UNB

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