Continuous stiffness monitoring of cemented sand through resonant frequency

Miguel Azenha, Cristiana Ferreira, Jacinto Silva, A. Gomes Correia, Rafael Aguilar, Luís F. Ramos

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

12 Citas (Scopus)

Resumen

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.

Idioma originalInglés
Título de la publicación alojadaEmerging Technologies for Material, Design, Rehabilitation, and Inspection of Roadway Pavements - Proceedings of the 2011 GeoHunan International Conference
Páginas174-183
Número de páginas10
Edición218 GSP
DOI
EstadoPublicada - 2011
Evento2011 GeoHunan International Conference - Emerging Technologies for Material, Design, Rehabilitation, and Inspection of Roadway Pavements - Hunan, China
Duración: 9 jun. 201111 jun. 2011

Serie de la publicación

NombreGeotechnical Special Publication
Número218 GSP
ISSN (versión impresa)0895-0563

Conferencia

Conferencia2011 GeoHunan International Conference - Emerging Technologies for Material, Design, Rehabilitation, and Inspection of Roadway Pavements
País/TerritorioChina
CiudadHunan
Período9/06/1111/06/11

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