中海PG88-28改性沥青的性能评价

Performance Evaluation of CNOOC PG88-28 Modified Asphalt

通过复合改性的方法制备得到了PG88-28改性沥青,对其SHRP指标、常规指标、施工和易性进行了评价。试验结果显示所制备的复合改性沥青性能指标符合PG88-28等级要求的同时,满足JTGF40-2004规定的I-C标准要求,施工和易性较好,对拌和及压实温度无特殊要求,适合应用于高温差或重载道路。

PG88-28 modified asphalt is prepared by compound modification method,subsequently,the conventional index,SHRP index and construction work-ability of the specimen are evaluated.Tests result show that the modified asphalt in accordance with PG88-28 grade specification,furthermore meet the requirement of I-C grade and have good construction work-ability.SBS modified asphalt in JTG F40-2004.At the same time,it has no special requirements for mixing and compaction temperature,suitable for high temperature difference or heavy load road.