摘要
通过SEBS和SBS的对比试验评价SEBS改性剂的改性效果。根据高、低温稳定性试验及水稳定性试验结果分析可知,SEBS改性沥青混合料具有较优的试验性能。SEBS改性沥青混合料的车辙动稳定度平均为5 837次/mm,与SBS改性沥青混合料相比其真空饱水残留稳定度MS’及低温弯曲应变能密度分别提高5%和7%,这表明SEBS改性沥青混合料具有较好的抵抗车辙、水损害、低温开裂的能力,其路用性能更优。
This experimental study is to value the the modification effects of SEBS as a modifier by the contrast tests of SEBS and SBS modified asphalt concrete.The test results of the rutting test,the water stability test and the microtherm stability test show that SEBS modified asphalt has good basic test performances.The average DS of SEBS modified asphalt concrete can be 5837 times per millimeter,and its MS＇ and low-temperature bending strain energy density separately increase 5% and 7% to compare with SBS modified asphalt concrete.These datas illustrate that SEBS modified asphalt concrete has a good ability to resist rutting,water damage and low-temperature crack,so its road performance is better.
出处
《公路工程》
2011年第2期34-37,共4页
Highway Engineering
基金
吉林大学创新基金资助研究项目(2009C63113)
关键词
SEBS改性沥青混合料
车辙
水稳定性
低温稳定性
SEBS modified asphalt concrete
rutting test
the water stability test
the low-temperature stability test
