DSpace DSpace UPC
 Català   Castellano   English  

E-prints UPC >
Altres >
Enviament des de DRAC >

Empreu aquest identificador per citar o enllaçar aquest ítem: http://hdl.handle.net/2117/9197

Arxiu Descripció MidaFormat
ICONIC09_roqueta_main.pdfArticle complet703,37 kBAdobe PDFThumbnail
Veure/Obrir

Citació: Roqueta, G.; Romeu, J.; Jofre, L. Transmission Approach for Near-Field Non Destructive Characterization of Steel Fiber Reinforcd Concrete at Microwave Frequencies. A: International Conference on Electromagnetic Near-Field Characterization and Imaging. "4th". 2009.
Títol: Transmission Approach for Near-Field Non Destructive Characterization of Steel Fiber Reinforcd Concrete at Microwave Frequencies
Autor: Roqueta Crusats, Gemma Veure Producció científica UPC; Romeu Robert, Jordi Veure Producció científica UPC; Jofre Roca, Lluís Veure Producció científica UPC
Data: 2009
Tipus de document: Conference report
Resum: Steel Fiber-Reinforcement is a way to strengthen concrete structures which results to be more flexible and less expensive than the conventional hand-tied rebars, while still increasing the tensile strength. In order to ensure the prescribed tensile strength, the conglomerate needs to have a certain volumetric density of fibers uniformily distributed over the structure. In this paper, a novel study on microwave Non-Destructive Testing (NDT) for Steel Fiber Reinforced Concrete (SFRC) is developed, with the objective to produce an image of the fiber density distribution in the concrete. An electromagnetic model is formulated relating the electromagnetic properties of SFRC to physical properties of this conglomerate such as fiber density or humidity content. A measurement system based on two dielectric waveguide antennas working at the appropiate microwave frequency range is designed, according to the environmental constraints and subject to the electromagnetic requirements of the situation. Laboratory non-destructive measurements on real SFRC test structures and images of the fiber density distribution in the SFRC are shown in this paper. Agreement with the theoretical simulated results is achieved.
URI: http://hdl.handle.net/2117/9197
Apareix a les col·leccions:ANTENNALAB - Grup d'Antenes i Sistemes Radio. Ponències/Comunicacions de congressos
Departament de Teoria del Senyal i Comunicacions. Ponències/Comunicacions de congressos
Altres. Enviament des de DRAC
Comparteix:


Stats Mostra les estadístiques d'aquest ítem

SFX Query

Aquest ítem (excepte textos i imatges no creats per l'autor) està subjecte a una llicència de Creative Commons Llicència Creative Commons
Creative Commons

 

Valid XHTML 1.0! Programari DSpace Copyright © 2002-2004 MIT and Hewlett-Packard Comentaris
Universitat Politècnica de Catalunya. Servei de Biblioteques, Publicacions i Arxius