High-strength self-curing low-shrinkage concrete for pavement applications

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dc.contributor.authorLopez, M.
dc.contributor.authorKahn, L. F.
dc.contributor.authorKurtis, K. E.
dc.date.accessioned2024-01-10T12:39:23Z
dc.date.available2024-01-10T12:39:23Z
dc.date.issued2010
dc.description.abstractHigh-performance concretes (HPC) that are designed to possess high early strength, self-curing capabilities and low shrinkage may potentially improve rigid pavement performance. A multi-scale experimental programme examined mechanical properties and shrinkage behaviour of a low water-to-cementitious materials ratio concrete containing pre-wetted lightweight aggregate for self-curing; results were compared with companion HPC prepared with air-dry lightweight aggregate and with normal weight, normal strength concrete. The use of pre-wetted lightweight aggregate enhanced hydration and strength development during the first year, and limited autogenous shrinkage and substantially reduced drying shrinkage. Digital image analysis revealed that shrinkage was concentrated in the paste rather than in the aggregate in both the normal strength concrete and HPC. The image analysis also showed that strain concentrations at the aggregate/paste interface were less apparent in the HPC, presumably due to the reduced strain mismatch with the use of the lower modulus lightweight aggregate. These observations suggest that the use of HPC containing pre-wetted lightweight aggregate can potentially reduce microcracking and enhance overall pavement performance.
dc.description.funderGeorgia Department of Transportation
dc.fechaingreso.objetodigital2024-05-09
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1080/10298436.2010.488731
dc.identifier.issn1029-8436
dc.identifier.urihttps://doi.org/10.1080/10298436.2010.488731
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77185
dc.identifier.wosidWOS:000280620500002
dc.information.autorucIngeniería;López M;S/I;7202
dc.issue.numero5
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final342
dc.pagina.inicio333
dc.publisherTAYLOR & FRANCIS LTD
dc.revistaINTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
dc.rightsacceso restringido
dc.subjectimage analysis
dc.subjectinternal curing
dc.subjectlightweight aggregate
dc.subjectmoisture
dc.subjectsaturated
dc.subjectshrinkage
dc.subjectAUTOGENOUS SHRINKAGE
dc.subjectCEMENT PASTE
dc.subjectLIGHTWEIGHT AGGREGATE
dc.subjectDEFORMATION
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleHigh-strength self-curing low-shrinkage concrete for pavement applications
dc.typeartículo
dc.volumen11
sipa.codpersvinculados7202
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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