环境吸附型沥青路面材料微观特征及增湿抑尘作用机理研究

本课题针对环境吸附剂与沥青交互作用使得增湿抑尘功能和路用性能表现各异的技术难题，就环境吸附型沥青路面材料微观特征及增湿抑尘作用机理展开研究。通过光谱分析、形貌显微和氮吸附技术，掌握环境吸附官能团组成、形貌和微孔介孔分布的变化规律，揭示环境吸附官能团在沥青中的扩散、接枝共轭及微孔介孔分布等微观特征；通过差热分析、形貌显微及氮吸附技术，测定玻璃化温度、光谱谱带偏移、组分间原子力及微孔介孔分布，揭示环境吸附官能团在沥青中迁移和离子交换反应规律；通过建立官能团迁移、离子交换反应速率与环境吸附型沥青微孔介孔和极性基团分布之间的关系方程，量化多孔和极性基团与沥青交互作用的相溶、接枝共轭和微孔介孔分布的动态反应特征，揭示环境吸附型沥青及混合料增湿抑尘功能的微观作用机理，提出适于沥青环境吸附改性的高效环境吸附剂开发原则和判据，为环境吸附型沥青路面材料技术的推广提供技术储备。

The objectives of this research are evaluate the interaction between environmental adsorbent and asphalt, which is significant effect on the function of humidification and road performance. The basic problems of asphalt pavement material application are the micro-characteristics of environmental adsorption asphalt pavement material and their humidification dust mechanism. Through spectral analysis, morphological microscopic and nitrogen adsorption techniques, the variation law of the composition, morphology and microporous mesoporous distribution of environmental adsorption can be recorded. The micro-characteristics such as diffusion, graft co-conjugate and microporous distribution of the environmental adsorption group are revealed. Through spectral analysis, atomic force and microporous distribution analysis, the environmental adsorption force in asphalt migration and ion exchange reaction are indicated. The quantify the insoluble of porous and polar groups interaction with asphalt are presented by establishing the relationship equation between the meta-energy group migration, ion exchange reaction rate and the distribution of the environment-absorbent asphalt microporous. The dynamic reaction characteristics and micro-mechanism of the environmental adsorption materials are studied to development principles and criteria of high-efficiency environmental adsorbent and provide technical reserves for the promotion of environmental adsorption asphalt pavement material technology.