Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/13566
Título: | Continuous stiffness monitoring of cemented sand through resonant frequency |
Autor(es): | Azenha, Miguel Ferreira, Cristiana Silva, Jacinto Correia, A. Gomes Aguilar, Rafael Ramos, Luís F. |
Palavras-chave: | Stiffness Cemented sand Continuous monitoring Resonant frequency Monitoring Sand (material) Soil stabilization |
Data: | 2011 |
Editora: | American Society of Civil Engineers (ASCE) |
Revista: | Geotechnical Special Publication |
Resumo(s): | Mixture formulation and in-situ quality control of the stabilized soils often represent difficult and challenging tasks. The present paper addresses the possibility of using a variant to a recently developed non-destructive technique for continuous monitoring of stiffness of hardening materials as a supporting means to the above-mentioned tasks. The material to be tested is placed inside a polycarbonate mold placed in simply supported conditions. The technique is based on the continuous monitoring of the first resonant frequency of this composite beam, which evolves as a consequence of the hardening of the material, and can be correlated with its E-modulus. The usefulness and potential of this experimental methodology for mixture formulation and quality control of stabilized soils is shown through a series of tests conducted on laboratory since the instant of mixing until 7 days. The conducted tests include complementary methodologies of characterization such as E-modulus measured on specimens with strain instrumentation, as well as monitoring with recourse to bender-extender elements. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/13566 |
ISBN: | 9780784476291 |
DOI: | 10.1061/47629(408)22 |
ISSN: | 0895-0563 |
Versão da editora: | http://www.asce.org/ |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
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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[7].pdf Acesso restrito! | 247,24 kB | Adobe PDF | Ver/Abrir |