周志刚,李士龙,胡超,等, 海盐与酸雨环境对高黏沥青宏观性能影响研究[J].河南理工大学学报(自然科学版)，doi:10.16186/j.cnki.1673-9787. 2024110053.
ZHOU Z G, LI S L, HU C, et al. Study on the influence of sea salt and acid rain environment on the macroscopic properties of high viscosity asphalt[J]. Journal of Henan Polytechnic University( Natural Science) ， doi: 10.16186/j.cnki.1673-9787. 2024110053.

海盐与酸雨环境对高黏沥青宏观性能影响研究(网络首发)

周志刚，李士龙，胡超，谢沙

长沙理工大学 道路结构与材料交通行业重点实验室，湖南 长沙 410114

摘要：目的：为了研究海盐环境和酸雨环境下高黏改性沥青的性能变化情况，评估其在不同环境条件下的耐久性和使用效果。方法：本文通过采用针入度、延度、软化点、布氏黏度、动态剪切流变、红外光谱和扫描电子显微镜等试验方法，对环境侵蚀下高黏改性沥青性能变化情况进行探究。结论：研究结果表明：溶液的侵蚀时间、浓度及种类均能够显著影响高黏改性沥青的宏观性能，高黏改性沥青的针入度和延度变化趋势基本一致，同时，高黏改性沥青的软化点和布氏黏度变化趋势基本一致；随着溶液对高黏改性沥青的侵蚀时间增加，在盐溶液中，改性沥青的车辙因子随溶液浓度的增加而增大；而在酸溶液中，车辙因子则会随溶液pH值的增大而减小。在经过酸、盐溶液的浸泡侵蚀后，高黏改性沥青表面会出现粗糙化的现象，且沥青的表面粗糙度与侵蚀时间呈正相关。在盐溶液中，高黏改性沥青会因水溶性物质和亲水基因的减少以及盐分结晶膨胀作用而导致沥青膜损坏；在酸溶液中，酸性物质能够促进沥青的组分发生迁移。意义：本研究不仅揭示了海盐和酸雨环境对高黏改性沥青性能的影响，还提供了微观层面的性能变化分析，为相关领域的材料设计、道路工程建设及后期养护提供科学依据，并为沥青材料在沿海和酸雨区的应用提供有效的技术参考。

关键词：高黏改性沥青；常规性能；海盐侵蚀；酸雨腐蚀；微观分析
doi: 10.16186/j.cnki.1673-9787.2024110053

基金项目:国家自然科学基金资助项目(51878079)

收稿日期：2024-11-25

修回日期：2025-04-21

网络首发日期： 2026-07-17

Study on the influence of sea salt and acid rain environment on the macroscopic properties of high viscosity asphalt (Online)

Zhou Zhigang, Li Shilong, Hu Chao, Xie Sha

Key Laboratory of Road Structure and Material of Ministry of Transport (Changsha), Changsha University of Science & Technology, Changsha 410114, Hunan, China

Abstract: Objective To study the performance changes of high viscosity modified asphalt in sea salt environment and acid rain environment, and evaluate its durability and use effect in different environmental conditions. Methods by using penetration, ductility, softening point, Brinell viscosity, dynamic shear rheology, infrared spectroscopy and scanning electron microscopy, this paper explores the performance changes of high viscosity modified asphalt under environmental erosion. Conclusions the results show that the erosion time, concentration and type of solution can significantly affect the macro performance of high viscosity modified asphalt, the penetration and ductility of high viscosity modified asphalt are basically the same, and the softening point and Brinell viscosity of high viscosity modified asphalt are basically the same; The rutting factor of modified asphalt in salt solution increases with the increase of solution concentration with the increase of erosion time of high viscosity modified asphalt; In acid solution, the rutting factor decreases with the increase of pH value. After immersion and erosion in acid and salt solutions, the surface of high viscosity modified asphalt will be roughened, and the surface roughness of asphalt is positively correlated with the erosion time. In salt solution, the high viscosity modified asphalt will damage the asphalt membrane due to the reduction of water-soluble substances, hydrophilic genes and salt crystallization expansion; In acid solution, acidic substances can promote the migration of asphalt components. Significance This study not only reveals the impact of sea salt and acid rain environment on the performance of high viscosity modified asphalt, but also provides performance change analysis at the micro level, which provides a scientific basis for material design, road engineering construction and later maintenance in related fields, and provides an effective technical reference for the application of asphalt materials in coastal and acid rain areas.

Keywords: high-viscosity modified asphalt; conventional properties; sea salt erosion; acid rain corrosion; microscopic analysis