Document Type
Article
Publication Date
9-27-2024
Abstract
Damage caused by snow and ice to airport pavements in colder regions of the United States presents a persistent and economically significant challenge. This research explores an innovative construction method using an electrically conductive composite (ECC) composed of waterborne polyurethane and graphite powder (Gp). The ECC is applied to a Portland cement concrete substrate through a parallel stripe technique, using two types of “exposed” specimen. The study thoroughly examines the resistive heating performance of these specimens under various conditions, focusing on critical factors such as Gp concentrations in ECC, stripe thickness, spacing, and applied voltages. ECC was prepared with varying Gp concentrations (17.5% to 25%), and applied in strips of different thicknesses (1 mm, 2 mm, and 3 mm), with spacings of 15 cm and 20 cm. The specimens were subjected to alternating current voltages of 40, 50, and 60 V to measure surface heating performance. Tests were performed at room temperature (23.6°C) and a controlled sub-freezing temperature (−17°C), monitoring the surface temperature over 60 min to evaluate heating capacity and distribution. The time required for the specimens’ surface temperature to rise from −17°C to 0°C was recorded. Results indicated that ECC with 22.5% Gp content was the most effective, with exposed specimens showing a surface temperature increase of 19.94°C/h and sandwiched specimens showing 15.46°C/h. These findings suggest a promising sustainable alternative to traditional pavement heating methods, offering a viable and enduring solution for winter weather challenges on airport runways.
Recommended Citation
Abdel-Raheem, Mohamed, and Mohammad Anis. "Toward Sustainability: A New Construction Method for Electrically Heated Rigid Pavement Systems." Transportation Research Record (2024): 03611981241275555. https://doi.org/10.1177/03611981241275555
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Publication Title
Transportation Research Record: Journal of the Transportation Research Board
DOI
https://doi.org/10.1177/03611981241275555
Comments
© The Author(s) 2024. This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).