摘要
简述了不同聚合物改性剂对沥青性能的改性效果及改性机理。论述了改性沥青的主要制备方法、国内改性沥青生产工艺现状和发展趋势。对现场拌和法和预混合法制备的改性沥青主要性能进行了比较 ,认为采用预混合法制备的改性沥青不但解决了热储存稳定性问题 ,而且由于制得的改性沥青属于热力学均相稳定体系 ,其改性效果比现场拌和法制得的物理分散型改性沥青好 。
The modification effects on asphalt and its mechanisms of various modifiers were described.The Mainly methods of preparation and the present status and developing tendency of domestic modified asphalt were discussed.The main performances of asphalt prepared separately by in situ blending and pre mixing were compared.It was considered that the asphat prepared with pre mixing method not only had good stability,but also had superior performance than that prepared with in situ blending method,for it was a thermodynamic stable system.The pre mixing method is the tendency to prepare modified asphalt.
出处
《石油沥青》
2001年第4期1-6,共6页
Petroleum Asphalt
