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Title: Non-destructive monitoring of fiber orientation using AC-IS: An industrial-scale application

Abstract

A comprehensive study has been undertaken to investigate the ability of AC-impedance spectroscopy (AC-IS) to non-destructively monitor the fiber dispersion of conductive fiber-reinforced cement-based materials. Previous work showed that AC-IS effectively monitors various fiber dispersion issues in lab-scale steel fiber-reinforced specimens. In this part of the study, AC-IS was used to study fiber orientation in an industrial-scale pre-cast concrete beam. A conventional method-image analysis (IA)-was used to verify the results of AC-IS measurements. The results of AC-IS and IA were found to match very well in experimental uncertainty. Splitting tensile tests and bending tests were conducted on the parts of the beam to study the effects of fiber orientation on the mechanical performance. The results of the mechanical tests also confirmed the results of AC-IS with splitting tensile strengths increasing as the alignment of fibers increased.

Authors:
 [1];  [2];  [3]
  1. Faculty of Civil Engineering, Istanbul Technical University, Ayazaga Kampusu, Istanbul, 34469 (Turkey) and Center for Advanced Cement Based Materials, Northwestern University, Evanston, IL, 60208 (United States). E-mail: ozyurtnil@itu.edu.tr
  2. Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208 (United States)
  3. Center for Advanced Cement Based Materials, Northwestern University, Evanston, IL, 60208 (United States)
Publication Date:
OSTI Identifier:
20871574
Resource Type:
Journal Article
Resource Relation:
Journal Name: Cement and Concrete Research; Journal Volume: 36; Journal Issue: 9; Other Information: DOI: 10.1016/j.cemconres.2006.05.026; PII: S0008-8846(06)00153-0; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BENDING; CEMENTS; CONCRETES; DISPERSIONS; FIBERS; IMPEDANCE; MECHANICAL TESTS; SPECTROSCOPY; STEELS; TENSILE PROPERTIES

Citation Formats

Ozyurt, Nilufer, Mason, Thomas O., and Shah, Surendra P. Non-destructive monitoring of fiber orientation using AC-IS: An industrial-scale application. United States: N. p., 2006. Web. doi:10.1016/j.cemconres.2006.05.026.
Ozyurt, Nilufer, Mason, Thomas O., & Shah, Surendra P. Non-destructive monitoring of fiber orientation using AC-IS: An industrial-scale application. United States. doi:10.1016/j.cemconres.2006.05.026.
Ozyurt, Nilufer, Mason, Thomas O., and Shah, Surendra P. 2006. "Non-destructive monitoring of fiber orientation using AC-IS: An industrial-scale application". United States. doi:10.1016/j.cemconres.2006.05.026.
@article{osti_20871574,
title = {Non-destructive monitoring of fiber orientation using AC-IS: An industrial-scale application},
author = {Ozyurt, Nilufer and Mason, Thomas O. and Shah, Surendra P.},
abstractNote = {A comprehensive study has been undertaken to investigate the ability of AC-impedance spectroscopy (AC-IS) to non-destructively monitor the fiber dispersion of conductive fiber-reinforced cement-based materials. Previous work showed that AC-IS effectively monitors various fiber dispersion issues in lab-scale steel fiber-reinforced specimens. In this part of the study, AC-IS was used to study fiber orientation in an industrial-scale pre-cast concrete beam. A conventional method-image analysis (IA)-was used to verify the results of AC-IS measurements. The results of AC-IS and IA were found to match very well in experimental uncertainty. Splitting tensile tests and bending tests were conducted on the parts of the beam to study the effects of fiber orientation on the mechanical performance. The results of the mechanical tests also confirmed the results of AC-IS with splitting tensile strengths increasing as the alignment of fibers increased.},
doi = {10.1016/j.cemconres.2006.05.026},
journal = {Cement and Concrete Research},
number = 9,
volume = 36,
place = {United States},
year = 2006,
month = 9
}
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