Study on the influencing factors of mechanical properties of anti-icing modified asphalt mortar

IF 3.8 2区工程技术 Q1 ENGINEERING, CIVIL Cold Regions Science and Technology Pub Date : 2024-05-10 DOI:10.1016/j.coldregions.2024.104218

Lei Zhang, Haoan Wang, Chao Xing, Yiqiu Tan, Jianxin Zhang

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Abstract

Accumulated snow and ice on road surface affect traffic operation. Anti-icing asphalt pavement is widely implemented as an active snow melting technology. However, there are few studies on anti-icing modified asphalt mortar mechanical properties and the effect of mortar materials on the interaction between modified asphalt and anti-icing filler. For this reason, this study investigated the mechanical properties of asphalt including rheological, high-temperature, fatigue and low-temperature properties through frequency and temperature scan, multiple stress creep recovery, linear amplitude scan, and single edge notched beam test. Based on this, the significant factors affecting asphalt mechanical properties were identified by analysis of variance. Subsequently, the Palierne-C-G* parameter was used to quantify the interaction between modified asphalt and anti-icing filler, and the effect of asphalt chemical structure on the interaction was revealed by Fourier Transform Infrared Spectroscopy (FTIR) test. The results indicated that the anti-icing filler significantly improved the high temperature and fatigue resistance of asphalt. Compared with SBS modified asphalt mortar, the mechanical properties of composite modified asphalt mortar were superior. The most significant factor affecting the mechanical properties of SBS modified asphalt mortar was modifier dosage, while the most significant factor affecting the composite modified asphalt mortar was crushed rubber dosage. The interaction showed a decreasing trend with the increase of frequency, while it appeared to increase and then decrease with the increase of temperature. The carbonyl functional group of asphalt correlated best with the interaction between asphalt and filler.

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抗冰改性沥青砂浆力学性能影响因素研究

路面积雪和结冰会影响交通运行。作为一种主动融雪技术，抗冰沥青路面被广泛采用。然而，有关抗冰改性沥青砂浆力学性能以及砂浆材料对改性沥青与抗冰填料相互作用的影响的研究却很少。因此，本研究通过频率和温度扫描、多应力蠕变恢复、线性振幅扫描和单边缺口梁试验，研究了沥青的力学性能，包括流变性能、高温性能、疲劳性能和低温性能。在此基础上，通过方差分析确定了影响沥青机械性能的重要因素。随后，利用 Palierne-C-G* 参数量化了改性沥青与防冰填料之间的相互作用，并通过傅立叶变换红外光谱（FTIR）测试揭示了沥青化学结构对相互作用的影响。结果表明，抗冰填料显著提高了沥青的耐高温和抗疲劳性能。与 SBS 改性沥青砂浆相比，复合改性沥青砂浆的力学性能更为优异。影响 SBS 改性沥青砂浆力学性能最显著的因素是改性剂用量，而影响复合改性沥青砂浆力学性能最显著的因素是压碎橡胶用量。随着频率的增加，交互作用呈下降趋势，而随着温度的增加，交互作用呈先增加后减小的趋势。沥青的羰基官能团与沥青和填料之间的相互作用关系最为密切。

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来源期刊

Cold Regions Science and Technology 工程技术-地球科学综合

CiteScore

7.40

自引率

12.20%

发文量

209

审稿时长

4.9 months

期刊介绍： Cold Regions Science and Technology is an international journal dealing with the science and technical problems of cold environments in both the polar regions and more temperate locations. It includes fundamental aspects of cryospheric sciences which have applications for cold regions problems as well as engineering topics which relate to the cryosphere. Emphasis is given to applied science with broad coverage of the physical and mechanical aspects of ice (including glaciers and sea ice), snow and snow avalanches, ice-water systems, ice-bonded soils and permafrost. Relevant aspects of Earth science, materials science, offshore and river ice engineering are also of primary interest. These include icing of ships and structures as well as trafficability in cold environments. Technological advances for cold regions in research, development, and engineering practice are relevant to the journal. Theoretical papers must include a detailed discussion of the potential application of the theory to address cold regions problems. The journal serves a wide range of specialists, providing a medium for interdisciplinary communication and a convenient source of reference.