Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/70604
Título: | Microstructural simulation and measurement of elastic modulus evolution of hydrating cement pastes |
Autor(es): | Dunant, Cyrille F. Granja, José Luís Duarte Muller, Arnaud Azenha, Miguel Scrivener, Karen L. |
Data: | 2020 |
Editora: | Elsevier 1 |
Revista: | Cement and Concrete Research |
Resumo(s): | Predicting the evolution of stiffness in cement paste requires linking morphological properties of the microstructure to the evolution of mechanical properties. Measures are typically difficult to obtain with sufficient time resolution to capture the transitions as the morphology evolves. In this work, we show the combined result 1 H NMR and EMM-ARM, a real-time measure of the modulus, with hydration and finite element modelling. Together, these reveal the different mechanisms through which the cementitious matrix gains stiffness, and further hints at links to the morphology of hydrates. A quantitative measure of the roles of percolation, hydrate growth, and space filling is thus provided. A practical outcome of this research is an empirical law linking the stiffness of C-S-H foam to its porosity from the start of the hydration. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/70604 |
DOI: | 10.1016/j.cemconres.2020.106007 |
ISSN: | 0008-8846 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0008884619304077 |
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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[84].pdf Acesso restrito! | 1,25 MB | Adobe PDF | Ver/Abrir |