树脂沥青紫外老化试验方法研究

发布时间：2018-01-10 16:33

本文关键词：树脂沥青紫外老化试验方法研究　出处：《公路》2014年07期 　论文类型：期刊论文

【摘要】：通过对光氧反应一般机理的分析,确定反应条件,进而提出紫外老化试验方法。基于高分子材料特性,总结了光氧反应的基本原理,进而确定紫外线、氧气、温度作为紫外老化过程中的控制因素。在对比分析不同紫外光源特点的基础上,选取UVA-340荧光紫外灯作为紫外光源。老化温度可根据实际情况进行调整。为了评价树脂沥青老化后的性能,建议利用红外光谱分析技术评价沥青物质组成变化,用劈裂抗拉强度、破坏应变、劲度模量指标来评价树脂沥青混凝土老化后的性能。
[Abstract]:Through the analysis of the general mechanism of photo-oxygen reaction, the reaction conditions were determined, and the ultraviolet aging test method was put forward. Based on the characteristics of polymer materials, the basic principle of photo-oxygen reaction was summarized, and then the ultraviolet and oxygen were determined. Temperature is the controlling factor in ultraviolet aging process. On the basis of comparing and analyzing the characteristics of different ultraviolet light sources. The UVA-340 fluorescent ultraviolet lamp is selected as the ultraviolet light source. The aging temperature can be adjusted according to the actual situation. In order to evaluate the performance of resin asphalt after aging. It is suggested that the changes of asphalt composition be evaluated by infrared spectroscopy, and the properties of resin asphalt concrete after aging are evaluated by the indexes of splitting tensile strength, failure strain and modulus of stiffness.
【作者单位】：哈尔滨工业大学交通学院;
【基金】：中国博士后科学基金面上资助项目,项目编号2013M541393 交通运输部建设科技项目,项目编号2011318801670
【分类号】：U414
【正文快照】： 我国钢桥面铺装在引进美国环氧沥青铺装方案之后,在此基础上进行了深入地研究,自主创新了树脂沥青组合体系(ERS),较好地解决了钢板与铺装材料界面的问题[1]。其中“R”指树脂沥青混凝土RA05,是关键结构层,可有效分散上部传递下来的车轮荷载,使得钢板界面受力更为均匀,能够减小

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