2015年7月下 施工技术 第44卷第14期 CONSTRUCTION TECHNOLOGY 119 D0I:10.7672/8js2015140119 基于室内试验的橡胶沥青黏度损失性能研究* 冯小伟1 2，张新雨，吴贵贤2 (1.甘肃省道路材料工程实验室，甘肃兰州730050；2.甘肃省交通科学研究院有限公司，甘肃兰州730050) [摘要]通过旋转黏度计得到的180℃表观黏度指标，是表征橡胶沥青性能的最主要指标.通过室内试验在不同的 储存温度、不同的储存时间并考虑静态储存与机械搅拌的情况下，采用Brookfield黏度计以50%扭矩的黏度为标 准，寻找橡胶沥青的黏度在外因条件下的损失变化规律；在对其变化规律进行微观解释的基础上建立了橡胶沥青 黏度随温度及时间变化的模型，从而为橡胶沥青的稳定性储存提供一定的技术参考. [关键词]公路工程：橡胶沥青；黏度损失；性能 [中图分类号]TU526 [文献标识码]A [文章编号]1002-8498(2015)14-0119-04 Viscosity Loss Performance Study on Asphalt Rubber Based on Laboratory Test Feng Xiaowei.2 Zhang Xinyu'.Wu Guixian2 (1.Gansu Road Materials Engineering Laboratory Lanzhou Gansu 730050 China; 2.Gansu Provincial Transportation Research Institute Co.Itd.Lanzhou Gansu 730050 China) Abstract:The apparent viscosity index at I80℃which is obtained by circumvolve viscosity is the most important performance indicators to describe the rubber asphalt.In this paper through indoor experiment with different storage temperature storage time and under the condition of considering the static storage and mechanical stirring Brookfield viseter viscosity was used on the basis of 50%torque of viscosity to look for the rubber asphalt viscosity change rule under the condition of external cause losses.And on the basis of microscopic explanation at rubber asphalt variety regulation a model to represent its viscosity changes with temperature and time was established which could provide certain technical reference for the stability of rubber asphalt storage. Key wor...
基于室内试验的橡胶沥青黏度损失性能研究.pdf
