摘要
沥青胶结料Superpave PG分级体系是美国SHRP计划的研究成果之一,被认为是基于路用性能基础的性能规范。通过多组AH-70普通沥青、SBS改性沥青的针入度分级指标试验检测和PG分级试验,利用门槛分析方法分析了PG等级与针入度分级指标之间的相关性,分析结果表明,AH-70普通沥青大部分针入度试验指标与PG等级之间规律性较好,而SBS改性沥青大部分针入度试验指标与PG等级之间规律性较差。
Superpave PG binder specification is a product of SHRP, which is a performance specification based pavement performance. AH-70 asphalt binder and SBS modified asphalt binder were chosen for the penetration graded test and PG test, and the relativity of penetration graded and PG was analyzed using the doorsill method. As result, penetration graded and PG correlate well for AH-70 asphalt, however they don＇t correlate so well for SBS modified asphalt.
出处
《石油沥青》
2007年第1期47-50,共4页
Petroleum Asphalt
