沥青60℃动力粘度的试验方法比较研究  

Comparative Research of Test Methods on 60℃ Dynamic Viscosity of Asphalt

作　　者：杨建新[1] 梅李贵子[1] 卢健[1] 徐全威[1] 

机构地区：[1]江苏省交通科学研究院,南京211112

出　　处：《石油沥青》2010年第1期15-20,共6页Petroleum Asphalt

摘　　要：粘度是流体抵抗流动的能力,其种类有很多,如标准粘度、动力粘度、运动粘度等。其中的60℃动力粘度是反映道路沥青高温抵抗永久变形能力的一项重要参数,其测试方法目前采用的基本有两种,分别是Brookfield旋转粘度计法与真空减压毛细管法,这两种粘度测试方法虽然最终得到的粘度单位一致但方法和原理却完全不同。分别采用这两种方法对6个不同的道路沥青试样进行比对试验,并对两种粘度测试方法的过程与结果进行比较分析,总结了两种方法的特点及其各自的适用范围。The viscosity is the flowing resistance ability of liquid. There are many kinds of it, including normal viscosity, dynamic viscosity and kinematic viscosity etc. 60℃ dynamic viscosity is an important parameter and it reflects permanent deformation resistance of road asphalt in high temperature. It has two test methods, one is Brookfield rotational viscometer method and another is vacuum decompression capillary method. Although the test result of viscosity unit of these two methods is same, the method and principle are entirely different. This paper uses these two methods to do comparative research on 6 kinds of asphalt, does comparative analysis on process and result and summarizes the characteristics and scope of application of these two methods.

关 键 词：动力粘度 试验方法 比较研究 Brookfield 旋转粘度计法 真空减压毛细管法 

分 类 号：U414[交通运输工程—道路与铁道工程]