Title

Electrically Conductive Mortar Characterization for Self-Heating Airfield Concrete Pavement Mix Design

Campus Units

Civil, Construction and Environmental Engineering, Institute for Transportation

Document Type

Article

Publication Version

Published Version

Publication Date

9-2015

Journal or Book Title

International Journal of Pavement Research and Technology

Volume

8

Issue

5

First Page

315

Last Page

324

DOI

http://dx.doi.org/10.6135/ijprt.org.tw/2015.8(5).315

Abstract

The overall objective of this paper is to investigate the types and proportions of nano-carbon based conductive materials (carbon powders and fiber), the mixing procedures, and the characteristics of conductive mortar, including the heating performance, with a focus on optimizing self-heating ECON mix design with desirable electrical and mechanical properties for airfield pavement deicing applications. A state-of-the-art review on relevant literature was conducted to identify the various conductive materials that have been investigated in the past, their optimal concentration levels to achieve desirable system-level engineering properties, and the various challenges in optimizing the ECON mix design and achieving a cost-effective ECON system. In the experimental investigation, mortar specimens modified with conductive materials at different concentration levels were compared with untreated (control) specimens interms of electrical and mechanical properties. Conductivity and strength performance assessment of the experimental results revealed that 6-mm chopped carbon fiber (CCF) utilized in this study is capable of providing improved electrical conductivity in compar ison to carbon based conductive powders without loss of strength and workability. Among carbon based conductive powders, the coarsest graphite powder provides acceptable electrical conductivity improvement and lesser loss of strength and workability. Heating characteristic of conductive mortar indicates that conductive materials which can enhance ECON conductivity could provide heating performance improvement for airfield pavement deicing application.

Research Focus Area

Construction Engineering and Management, Transportation Engineering

Comments

This article is published as Gopalakrishnan, Kasthurirangan, Halil Ceylan, Sunghwan Kim, Shuo Yang, and Hesham Abdualla. "Electrically conductive mortar characterization for self-heating airfield concrete pavement mix design." International Journal of Pavement Research and Technology 8, no. 5 (2015): 315-324. doi: 10.6135/ijprt.org.tw/2015.8(5).315. Posted with permission.

Creative Commons License

Creative Commons Attribution-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-No Derivative Works 4.0 License.

Copyright Owner

Chinese Society of Pavement Engineering

Language

en

File Format

application/pdf

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