Road maintenance in winter is one of the road engineers’ concerns, especially asphalt specialists. As pavement frosts lead to road closures and accidents, one of the ways to prevent these events is spraying deicer materials on the pavement surface. Therefore, investigation of the impact of the deicer materials on asphalt is essential. So in this study, the effect of deicer materials on the moisture susceptibility of base asphalt mixtures and modified ones by carbon nanotube (CNT) was investigated utilizing penetration and softening point tests and surface free energy (SFE) concept and dynamic modulus (DM) test. Two common deicers CaCl₂ and MgCl₂ along with distilled water (DW) were used. Results indicated that using CNT increased the softening point and reduced the penetration degree of modified bitumens, which increased the penetration index amounts and improved the sensitivity of the samples against temperature variations. The SFE results showed that modifying bitumen with CNT led to an increase in adhesion free energy (AFE). The samples saturated in CaCl₂ and modified with 1% CNT had the highest CFE values. The MgCl₂ solution had less detachment energy, which reduced the energy of the system and stripping occurred sooner. Results of the DM test showed that CNT increased the wet-to-dry DM ratio in saturated conditions with deicer materials and DW, improving the resistance of the saturated mixtures to moisture. The GMDH model compared to the MVR method had higher accuracy and less error in prediction of stripping percentage with the R² value of 99.46%.

冬季道路维护是道路工程师尤其是沥青专家所关心的问题之一。由于路面结霜导致道路封闭和事故，防止这些事件的方法之一是在路面上喷除冰剂。因此，研究除冰剂对沥青的影响至关重要。因此，在本研究中，利用渗透和软化点测试以及表面自由能（SFE）概念和动态模量（DM）测试，研究了除冰剂对基础沥青混合物和碳纳米管（CNT）改性的沥青混合物的水分敏感性的影响。 。两种常见的除冰剂CaCl ₂和MgCl ₂与蒸馏水（DW）一起使用。结果表明，使用CNT可以提高软化点并降低改性沥青的渗透度，从而增加了渗透指数，并提高了样品对温度变化的敏感性。SFE结果表明，用CNT改性沥青会导致无粘附能（AFE）的增加。用CaCl ₂饱和并用1％CNT改性的样品具有最高的CFE值。氯化镁₂溶液的分离能较少，这减少了系统的能量，并且剥离发生得更快。DM试验的结果表明，在使用除冰剂和DW的饱和条件下，CNT增加了干/干DM比，从而提高了饱和混合物的耐湿性。与MVR方法相比，GMDH模型在汽提率预测中具有更高的准确性和较小的误差，R ²值为99.46％。