高模量沥青混合料综合性能评价试验研究  

Research on performance evaluation index of high modulus asphalt mixture

作　　者：梁波 Liang Bo(JSTI Group Co.,Ltd.,Nanjing 211112,China)

机构地区：[1]苏交科集团股份有限公司,江苏南京211112

出　　处：《山西建筑》2022年第2期108-111,共4页Shanxi Architecture

摘　　要：为了研究高模量沥青混合料评价指标及抗车辙性能,选择岩沥青和橡胶沥青AC-20混合料,分别采用三种模量性能试验综合评价混合料模量,并结合高温性能和疲劳性能试验,通过综合性能指标评价混合料模量性能。最后通过试验段评价橡胶沥青混合料路用性能。研究表明:SBS改性沥青(掺PR.M)、复合改性岩沥青和橡胶沥青动态模量接近,且均高于规范要求,具有较高的动态模量;橡胶沥青具有优异的抗疲劳和抗车辙性能;橡胶沥青混合料试验段各项指标均满足技术要求。In order to study the evaluation index and rutting resistance of high modulus asphalt mixes,this paper selects rock asphalt and rubber asphalt AC-20 mixes,and uses three modulus performance tests to evaluate the modulus of the mixes respectively,and combines high temperature performance and fatigue performance tests to evaluate the road performance,and evaluates the modulus performance of the mixes through comprehensive performance indexes.Finally,the rubber asphalt mixture road performance through the test section evaluation.Research shows that:SBS modified asphalt(mixed with PR.M),composite modified rock asphalt and rubber asphalt dynamic modulus close,and are higher than the specification requirements,with high dynamic modulus.Rubber asphalt has excellent fatigue resistance and rutting resistance.Rubber asphalt mixture test section of all indicators meet the technical requirements.

关 键 词：高模量沥青 岩沥青 湖沥青 回弹模量 动态模量 劲度模量 

分 类 号：U414[交通运输工程—道路与铁道工程]