| Author Name | Affiliation | Postcode | | Zhaoqing Chen* | School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China | 132012 | | Ankang Chen | School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China | | | Fengyuan Xie | School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China
State Grid Zhejiang Electric Power Co., Ltd. Linhai Power Supply Company, Linhai 317000, China | | | Qingyue Kong | Jilin Blue View Engineering Quality Testing Co., Ltd., Jilin 132012, China | | | Chunxue Xu | Jilin Blue View Engineering Quality Testing Co., Ltd., Jilin 132012, China | | | Ya-na Guo | Jilin Blue View Engineering Quality Testing Co., Ltd., Jilin 132012, China | |
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| Abstract: |
| A prefabricated modular ice melting structure using carbon fiber heating technology is designed to address winter ice formation on asphalt pavements in cold regions. This study tests the ice melting performance of carbon fiber heating wires under different burial depths, spacing, power levels and ambient temperatures in a walk-in low-temperature environmental chamber, and determines the optimal power configurations for various environments. A multi-dimensional assessment framework is developed via the AHP-TOPSIS method by evaluating melting efficiency, construction feasibility and structural durability. Results show the optimal layout of the heating wires is 75mm spacing and 30mm burial depth; recommended power levels are 600W/m2, 500W/m2, 400W/m2 and 350W/m2 for ambient temperatures below -15℃, -15℃ to -10℃, -10℃ to -5℃ and above -5℃ respectively. Field tests reveal that with an average temperature of -12℃, 13mm snow and 500W/m2 power, the pavement temperature reaches 2.31℃ on average after 3 h of heating, with a 0.943 snow-free area ratio, meeting practical needs. The innovative structure, with factory-prefabricated heating layers containing thermal reflective films transported to the site for asphalt pouring, avoids heat source damage in traditional cast-in-place construction and boosts construction efficiency significantly. |
| Key words: prefabricated asphalt concrete pavement carbon fiber heating wire environmental chamber ice melting test optimal ice melting performance outdoor snow melting test |
| DOI：10.11916/j.issn.1005-9113.25046 |
| Clc Number:U416.2 |
| Fund: |
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| Descriptions in Chinese: |
| 本研究设计了一种采用碳纤维加热技术的预制模块化融冰结构，旨在解决寒冷地区冬季沥青路面结冰问题。通过在步入式低温环境舱中测试不同埋深、间距、功率及环境温度下的碳纤维加热丝融冰性能，确定了各环境下的最佳功率配置方案。采用层次分析法（AHP-TOPSIS）构建了融冰效率、施工可行性与结构耐久性多维度评估框架。结果表明：加热丝最佳布局为75毫米间距和30毫米埋深；环境温度低于-15℃、-15℃至-10℃、-10℃至-5℃及高于-5℃时，推荐功率分别为600W/m2、500W/m2、400W/m2和350W/m2。现场测试显示，在平均气温-12℃℃、积雪厚度13毫米且功率为500W/m2的条件下，路面经3小时加热后平均温度达2.31℃℃，无积雪区域比例达0.943，完全满足实际应用需求。创新结构通过工厂预制含热反射膜的加热层运输至现场浇筑沥青，既避免了传统现浇施工中的热源损伤，又显著提升了施工效率。 |
