Electrical tagging of cement composites for nondestructive integrity monitoring

Farhad Reza; Gordon B. Batson; Jerry A. Yamamuro; Jong S. Lee

doi:10.1117/12.301521

31 March 1998 Electrical tagging of cement composites for nondestructive integrity monitoring

Farhad Reza, Gordon B. Batson, Jerry A. Yamamuro, Jong S. Lee

Proceedings Volume 3396, Nondestructive Evaluation of Materials and Composites II; (1998) https://doi.org/10.1117/12.301521
Event: Non-Destructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1998, San Antonio, TX, United States

Abstract

The results of an investigation on the bulk electrical properties of carbon fiber cement composites (CFCC) with the prospect of developing a new nondestructive testing method are presented. The addition of carbon fibers to portland cement- based concrete or mortar improves the structural performance and at the same time significantly decreases the bulk electrical resistivity. This makes CFCC responsive to interrogation by electrical methods. This paper presents experimental data on the electrical behavior of CFCC as a multi-phase medium consisting of conducting and insulating phases. The volume electrical resistivity of CFCC samples was recorded as a function of curing time. The dependence of this electrical resistivity on the water-cement ratio, sand-cement ratio and volume fraction of carbon fibers in the mix was determined. Three different electrode configurations were investigated for their applicability in measuring electrical resistivity of CFCC samples.

Citation Download Citation

Farhad Reza, Gordon B. Batson, Jerry A. Yamamuro, and Jong S. Lee "Electrical tagging of cement composites for nondestructive integrity monitoring", Proc. SPIE 3396, Nondestructive Evaluation of Materials and Composites II, (31 March 1998); https://doi.org/10.1117/12.301521

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available