【摘要】 研究了煤沥青橡胶改质筑路油在加速热老化过程中的性质变化,建立了粘度与温度及针入度与温度的关联式,与石油道路沥青相比,前者的耐老化性要比后者稳定,胶体结构也由溶-凝胶型转变为凝胶型。更多还原

【Abstract】 The property change of the road binder modified by rubber is studied dur-ing accelerating heat aging. The relations between its viscosity and temperature and be-tween penetration and temperature have been set up. In contrast with asphalt for paving, the aging resistance of the former is more stable than that of the latter. Its sys-tem is changed from sol-gel type to gel type.更多还原