沥青路面裂缝灌缝材料在低温环境下密封性能保持研究

Study on sealing performance of crack filling material in asphalt pavement under low temperature environment

摘要

本文研究了沥青路面裂缝灌缝材料在低温环境下的密封性能保持问题，通过实验验证了影响灌缝材料密封性能的因素，并提出了提升性能的有效路径。实验采用正交试验设计，选取不同改性剂掺量作为变量，系统分析了材料组成、施工工艺、环境因素、材料老化和裂缝特性对灌缝材料低温性能的影响。结果表明，优化材料配方、采用先进改性技术、严格控制施工工艺、选用高质量原材料以及增强抗老化性能是提升灌缝材料低温密封性能的关键。实验数据进一步证实了优化配方在低温拉伸、冷拉热压循环和低温抗裂性试验中的优越性，为寒冷地区道路裂缝修复材料的选择与应用提供了科学依据。

Abstract

This study investigates the preservation of sealing performance of crack-filling materials in asphalt pavement under low-temperature conditions. Through experimental verification, factors affecting the sealing performance of crack-filling materials were identified, and effective improvement strategies were proposed. The orthogonal experimental design selected different modifier concentrations as variables to systematically analyze the impacts of material composition, construction techniques, environmental factors, material aging, and crack characteristics on low-temperature performance. Results demonstrate that optimizing material formulations, adopting advanced modification technologies, strictly controlling construction processes, selecting high-quality raw materials, and enhancing anti-aging properties are key to improving low-temperature sealing performance. Experimental data further confirm the superiority of optimized formulations in low-temperature tensile tests, cold tension-heat compression cycles, and low-temperature crack resistance tests, providing a scientific basis for selecting and applying crack-filling materials in road repair projects in cold regions.

关键词

沥青路面 / 裂缝灌缝材料 / 低温密封性能 / 实验验证 / 改性技术

Key words

asphalt pavement / crack filling material / low temperature sealing performance / experimental verification / modification technology

参考文献

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