SBS聚合物在沥青中溶胀直径及其与沥青性质的关系

发布时间：2018-03-10 14:29

本文选题：道路工程　切入点：SBS改性沥青　出处：《公路交通科技》2015年10期 　论文类型：期刊论文

【摘要】：为研究SBS改性沥青微观结构量化指标与沥青性质之间的关系,采用4种SBS改性剂、3种基质沥青、3种SBS改性剂掺量制备14组SBS改性沥青进行荧光显微镜取样观察,选择400倍荧光显微图像为研究对象,借助MALTAB图像处理功能、Auto CAD软件以及微积分思想提出一种SBS改性沥青微观结构中SBS溶胀直径计算的方法,即SBS在沥青中溶胀相互联结之后形成的网络状、棒状、云状等结构的平均直径;测试了14组SBS改性沥青的溶胀直径,结合荧光显微图像分析了SBS溶胀直径与SBS改性沥青路用性能指标之间的关系。研究认为SBS溶胀直径在2.4~2.6μm时具有较高的改性性能和均一稳定的微观溶胀状态,SBS溶胀直径可以更加全面地反映出SBS改性沥青的本质属性。
[Abstract]:In order to study the relationship between the quantitative index of microstructure and the properties of SBS modified asphalt, 14 groups of SBS modified asphalt were prepared by using four kinds of SBS modifier, three kinds of matrix asphalt, three kinds of SBS modifier and 14 groups of SBS modified asphalt. A method for calculating the swelling diameter of SBS in the microstructure of SBS modified asphalt is presented by means of the MALTAB image processing function Auto CAD software and the idea of calculus. That is, the average diameter of the network, rod and cloud structure formed by the swelling of SBS in asphalt, the swelling diameter of 14 groups of SBS modified asphalt was measured. The relationship between the swelling diameter of SBS and the road performance index of SBS modified asphalt was analyzed with fluorescence microscopic image. It is considered that the swelling diameter of SBS has higher modification performance and homogeneous and stable microscopic swelling state when the swelling diameter of SBS is 2. 4 ~ 2. 6 渭 m. Diameter can reflect the nature of SBS modified asphalt more comprehensively.
【作者单位】：长安大学特殊地区公路工程教育部重点实验室;建设银行湖南省分行;株洲市规划设计院;西安市政设计研究院有限公司;
【基金】：国家留学基金委项目(20143026) 陕西省交通科技项目(09-01K)
【分类号】：U414.1

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