Fiber dispersion monitoring using AC-impedance spectroscopy and a conventional method

Author(s): N. Ozyurt, L.Y. Woo, T.O. Mason, S.P. Shah
Paper category: Workshop
Book title: Fifth International RILEM Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC5)
Editor(s): H.W. Reinhardt, A.E. Naaman
ISBN: 978-2-35158-046-2
Pages: 267 - 273
Total Pages: 7
Language: English

Abstract: 
Fiber dispersion is an important and decisive parameter for composite material performance and should be well studied to describe material properties. Various methods are used for evaluating fiber dispersion characteristics in fiber-reinforced composites (FRCs). However, most of these methods are either destructive and/or time-consuming. New and nondestructive techniques are needed to effectively monitor distribution of fibers in composite materials. In the last decade, efforts have been made to use AC-Impedance Spectroscopy (AC-IS) to study fiber dispersion characteristics of FRCs. Previous work of the authors showed that AC-IS is sensitive to the presence of conductive fibers. This work has been undertaken to further study the findings of the previous study. A conventional method –Image Analysis – was employed to verify the results of AC-Impedance Spectroscopy. A comparison of the two methods was made. AC-IS was found to be an effective method to monitor fiber dispersion in FRCs.

Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00