Low Frequency Electrical and Magnetic Methods for Non-Destructive Analysis of Fiber Dispersion in Fiber Reinforced Cementitious Composites: An Overview

Sensors

Marco Faifer²  Liberato Ferrara¹  Roberto Ottoboni² 

[1] Department of Civil and Environmental Engineering, Politecnico di Milano, piazza L. da Vinci 32, 20133 Milan, Italy;Department of Electrical Engineering, Politecnico di Milano, piazza L. da Vinci 32, 20133 Milan, Italy; E-Mails:

关键词: non-destructive monitoring;    FRC;    FRCCs;    magnetic inductance;    fiber dispersion;    mechanical performance;   

DOI  :  10.3390/s130101300

来源: mdpi

【 摘 要 】

Non-destructive analysis of fiber dispersion in structural elements made of Fiber Reinforced Concrete (FRC) and Fiber Reinforced Cementitious Composites (FRCCs) plays a significant role in the framework of quality control and performance prediction. In this paper, the research activity of the authors in the aforementioned field all over the last lustrum will be reviewed. A method based on the measurement of the inductance of a probe to be placed on the specimen will be presented and its progressive development will be described. Obtained correlation with actual fiber dispersion, as checked by means of destructive methods, as well as with the mechanical performance of the composite will also be presented, in an attempt to address the significance of the method from an engineering application perspective.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.