Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/68727
Título: | An innovative approach for temperature control of massive concrete structures at early ages based on post-cooling: proof of concept |
Autor(es): | Kheradmand, Mohammad Azenha, Miguel Vicente, R. Aguiar, J. L. Barroso de |
Palavras-chave: | Cement hydration Massive concrete Post-cooling Temperature rise Water circulation |
Data: | Dez-2020 |
Editora: | Elsevier 1 |
Revista: | Journal of Building Engineering |
Citação: | Kheradmand M., Azenha M., Vicente R., Aguiar J. B. An innovative approach for temperature control of massive concrete structures at early ages based on post-cooling: Proof of concept, Journal of Building Engineering, Vol. 32, doi:10.1016/j.jobe.2020.101832, 2020 |
Resumo(s): | This study proposes a new methodology for the embedment of flexible PVC hoses (with the shape/geometry of the intended cooling pipes) that allows their removal a few hours after casting (i.e. after setting), while allowing that water is pumped through the circular cavity afterward (through a flexible/impermeable sleeve placed to shield the exposed concrete cavity). The PVC hoses are initially filled with oil under pressure, which are deflated a few hours after casting (particularly after setting is identified), and removed without relevant constraints due to their reduction in diameter inherent to deflation. All components and materials embedded into concrete (hose, sleeve) are fully recoverable after the end of the temperature control period, avoiding the loss of materials, with important financial and sustainability gains. This paper intends to show the proof-of-concept carried out in laboratory context conditions, highlighting the features that led to the selection and phasing procedure of the solution proposed. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/68727 |
DOI: | 10.1016/j.jobe.2020.101832 |
ISSN: | 2352-7102 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S2352710220334653 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | C-TAC - Artigos em Revistas Internacionais ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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3169-Jour_Build_Eng_2020.pdf | 6,74 MB | Adobe PDF | Ver/Abrir |