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dc.contributor.author
Trottier, Cassandra
dc.contributor.author
Zahedi, Andisheh
dc.contributor.author
Ziapour, Rouzbeh
dc.contributor.author
Sanchez, Leandro
dc.contributor.author
Locati, Francisco
dc.date.available
2022-10-19T11:44:54Z
dc.date.issued
2021-02
dc.identifier.citation
Trottier, Cassandra; Zahedi, Andisheh; Ziapour, Rouzbeh; Sanchez, Leandro; Locati, Francisco; Microscopic assessment of recycled concrete aggregate (RCA) mixtures affected by alkali-silica reaction (ASR); Elsevier; Construction And Building Materials; 269; 121250; 2-2021; 1-15
dc.identifier.issn
0950-0618
dc.identifier.uri
http://hdl.handle.net/11336/173880
dc.description.abstract
Recycled concrete aggregates (RCA) are deemed an efficient approach to reduce waste yet, the presence of previous alkali-silica reaction (ASR) causes reservations towards its use in new construction. In this work, RCA specimens are manufactured in the laboratory incorporating RCA displaying distinct ASR past deteriorations (i.e. slight and severe). The samples are stored in conditions enabling further ASR development and monitored over time. Three levels of “secondary” expansion are selected for analysis, and upon being reached, microscopic evaluations are conducted through the Damage Rating Index (DRI). Results revealed that lower distress is observed in the RCA mixtures when compared to a companion conventional concrete at the same expansion level. Moreover, the damage mechanism of ASR-affected RCA concrete seems dependent on the RCA past deterioration since cracks tend to propagate into the residual cement paste or new cement paste for mixtures made of slightly or severely damaged RCA, respectively.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
ALKALI-SILICA REACTION (ASR)
dc.subject
DAMAGE
dc.subject
DAMAGE RATING INDEX (DRI)
dc.subject
MICROSCOPIC ASSESSMENT
dc.subject
RECYCLED CONCRETE AGGREGATES (RCA)
dc.subject.classification
Ingeniería Civil
dc.subject.classification
Ingeniería Civil
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Microscopic assessment of recycled concrete aggregate (RCA) mixtures affected by alkali-silica reaction (ASR)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-22T00:45:39Z
dc.journal.volume
269
dc.journal.number
121250
dc.journal.pagination
1-15
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Trottier, Cassandra. University of Ottawa; Canadá
dc.description.fil
Fil: Zahedi, Andisheh. University of Ottawa; Canadá
dc.description.fil
Fil: Ziapour, Rouzbeh. University of Ottawa; Canadá
dc.description.fil
Fil: Sanchez, Leandro. University of Ottawa; Canadá
dc.description.fil
Fil: Locati, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.journal.title
Construction And Building Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.conbuildmat.2020.121250
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0950061820332542
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