沥青60℃动力黏度试验影响因素探讨

Discussed on the Effect Factors of Dynamic Viscosity Test at 60 ℃

对石油沥青及SBS改性沥青在不同的烘样温度、冷却方式、冷却时间条件下进行60℃动力黏度试验,试验结果表明毛细管黏度计置入60℃恒温水槽保养瞬间,因SBS改性沥青温度的急剧下降,导致动力黏度重复性试验误差值加大。

In this paper, we conducted 60℃ dynamic viscosity tests of petroleum asphalt and SBS modified asphalt by different bake temperature, cooling methods and cooling time. The test results show that when the capillary viscometer is placed in the constant temperature water tank at 60℃, the repeatability test error of dynamic viscosity increase due to the sharp drop in the temperature of the SBS modified asphalt.