Campus Units

Civil, Construction and Environmental Engineering, Institute for Transportation, National Concrete Pavement Technology Center

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

12-1-2018

Journal or Book Title

Journal of Cleaner Production

Volume

203

First Page

799

Last Page

809

DOI

10.1016/j.jclepro.2018.08.315

Abstract

Traditional methods of removing snow/ice from pavements involve application of deicing salts and mechanical removal that carry environmental concerns. In this study, the feasibility of applying carbon fiber-based electrically conductive concrete (ECON) in heated pavement systems (HPS) as an alternative to traditional methods was investigated. Optimum carbon fiber dosage to achieve desirable electrical conductivity and avoid excessive fiber use was determined by studying carbon fiber percolation in different cementitious composites. System design was evaluated by finite element (FE) analysis. Heating performance in terms of energy consumption regime was studied by quasi-long-term (460-day) experimental study using a prototype ECON slab.

Percolation transition zone of carbon fiber in paste, mortar, and concrete were respectively 0.25–1% (Vol.), 0.6–1% (Vol.), and 0.5–0.75% (Vol.). Optimum fiber dosage in ECON with respect to conductivity was 0.75%, resulting in volume conductivity of 1.86 × 10−2 (S/cm) at 28 days and 1.22 × 10−2(S/cm) at 460 days of age. Electrical-energy-to-heat-energy conversion efficiency decreased from 66% at 28 days to 50% at 460-day age. The results showed that the studied technology could be effectively applied for ice/snow melting on pavement surfaces and provide a feasible alternative to traditional methods if the ECON mixing proportions and system configurations are made with necessary precautions.

Research Focus Area

Environmental/Water Resources Engineering, Transportation Engineering

Comments

This is a manuscript of an article published as Sassani, Alireza, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, SM Sajed Sadati, Kasthurirangan Gopalakrishnan, Peter C. Taylor, and Hesham Abdualla. "Carbon fiber-based electrically conductive concrete for salt-free deicing of pavements." Journal of Cleaner Production 203 (2018): 799-809. DOI: 10.1016/j.jclepro.2018.08.315. Posted with permission.

Creative Commons License

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

Copyright Owner

Elsevier Ltd.

Language

en

File Format

application/pdf

Available for download on Sunday, August 30, 2020

Published Version

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