Ahmadi Ehsan, Solatifar Nader
Department of Civil Engineering, Urmia University, Urmia, Iran.
Sci Rep. 2025 Sep 26;15(1):33146. doi: 10.1038/s41598-025-18505-w.
Fast deicing of pavements is essential for several reasons: ensuring safety on the airfields, bridge decks, and highways, and enabling accessibility to winter resorts. These pavements include conductive materials to create a continuous network of electricity throughout the pavement. This study introduces the use of high-carbon recycled metal fiber (RMF) and carbon black modified binder (CBMB) to design an electrically conductive asphalt pavement (ECAP) with the capability of ice and snow melting. For this purpose, four ECAP samples with varying percentages of RMF and two types of binders, namely virgin PG 58 -22 and CBMB, were constructed and tested at the full-scale pavement testing site of Urmia University in northwest Iran. Subsequently, twelve cores were taken from the field samples, and laboratory experiments were conducted on them. Results show that the best electro-thermal performance was observed in the field sample containing 6% RMF with CBMB. The consumed energy calculated for heating the cores was lower than in recent studies; 1623 W/m was estimated to raise the ECAP temperature from -20 to 0 °C in just 128 s, based on the cores' electro-thermal experiments. The ECAP's electro-thermal performance exhibited promising results for protecting pavements during extreme snow events.
路面快速除冰至关重要，原因有以下几点：确保机场、桥面和高速公路的安全，以及让冬季度假胜地保持畅通。这些路面包含导电材料，以便在整个路面形成连续的电网络。本研究介绍了使用高碳再生金属纤维（RMF）和炭黑改性粘结剂（CBMB）来设计具有冰雪融化能力的导电沥青路面（ECAP）。为此，在伊朗西北部乌尔米亚大学的全尺寸路面测试场地，建造并测试了四个含有不同百分比RMF的ECAP样本以及两种粘结剂，即原始PG 58-22和CBMB。随后，从现场样本中取出12个芯样，并对其进行实验室实验。结果表明，在含有6%RMF和CBMB的现场样本中观察到了最佳的电热性能。根据芯样的电热实验，计算得出加热芯样所消耗的能量低于近期研究；估计仅需1623瓦/米的功率，就能在短短128秒内将ECAP的温度从-20℃提高到0℃。ECAP的电热性能在极端降雪事件中对保护路面展现出了令人期待的结果。
