Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/44541

TítuloInfluence of temperature in the evolution of compressive strength and in its correlations with UPV in eco-concretes with recycled materials
Autor(es)Velay-Lizancos, Mirian
Martinez-Lage, Isabel
Azenha, Miguel
Vásquez-Burgo, P.
Palavras-chaveUltrasonic pulse velocity
Temperature
Concrete
Compressive strength
Biomass ash
Recycled aggregate
Early age
Non-destructive testing
Data2016
EditoraElsevier
RevistaConstruction and Building Materials
CitaçãoVelay-Lizancos, M., Martinez-Lage, I., Azenha, M., & Vazquez-Burgo, P. (2016). Influence of temperature in the evolution of compressive strength and in its correlations with UPV in eco-concretes with recycled materials. Construction and Building Materials, 124, 276-286. doi: 10.1016/j.conbuildmat.2016.07.104
Resumo(s)This research studies the influence of temperature on the evolution of compressive strength and on its correlations with the ultrasonic pulse velocity in concretes and eco-concretes, with a focus on the ages between 1 and 28 days. To that end, 9 concrete mixtures are studied, with parametric variations in the following components: (i) the type of aggregate, including several replacement ratios of recycled aggregate; (ii) water/cement ratio; (iii) cement content, as well as its partial replacement with biomass ashes. These 9 mixtures can be further divided in two major groups: 6 vibrated concretes and 3 self-compacting concretes. The 6 mixtures of vibrated concretes are: a mixture of reference, three mixtures with partial replacement of fine and coarse recycled concrete aggregates (8%, 20% and 31% replacement), and two mixtures with partial replacement of cement with biomass ashes from the paper industry (15% and 30% replacement). The 3 remaining mixtures corresponding to self-compacting concretes are: one reference mixture of self-compacting concrete and two additional mixtures with partial replacement of fine and coarse recycled concrete aggregates from precast elements (20% and 50% replacement). The influence of temperature on the evolution of strength in each of the mixtures is determined for curing temperatures of 5 C, 20 C and 45 C. The study further includes the evaluation of the influence that temperature and mixture parameters (particularly those of eco-concretes) have on the relationship between compressive strength and ultrasonic pulse velocity.
Tipoarticle
URIhttp://hdl.handle.net/1822/44541
DOI10.1016/j.conbuildmat.2016.07.104
ISSN0950-0618
Versão da editorahttp://dx.doi.org/10.1016/j.conbuildmat.2016.07.104
Arbitragem científicayes
AcessorestrictedAccess
Aparece nas coleções:ISISE - Artigos em Revistas Internacionais

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