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https://hdl.handle.net/1822/44541
Título: | Influence 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-chave: | Ultrasonic pulse velocity Temperature Concrete Compressive strength Biomass ash Recycled aggregate Early age Non-destructive testing |
Data: | 2016 |
Editora: | Elsevier 1 |
Revista: | Construction and Building Materials |
Citação: | Velay-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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/44541 |
DOI: | 10.1016/j.conbuildmat.2016.07.104 |
ISSN: | 0950-0618 |
Versão da editora: | http://dx.doi.org/10.1016/j.conbuildmat.2016.07.104 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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[39].pdf Acesso restrito! | 2,28 MB | Adobe PDF | Ver/Abrir |