CAJ | 학술논문

分析了天然岩石沥青改性剂的作用机理,通过车辙试验和动态蠕变试验研究了岩沥青改性沥青混凝土的高温性能,并采用有限元分析计算了岩沥青改性剂对沥青路面结构抗车辙性能的影响.研究结果表明:岩沥青改性剂可提高沥青混凝土的模量,使混合料的动稳定度值和蠕变模量得到大幅提高,明显改善了沥青混合料的高温性能;与普通沥青路面结构相比,岩沥青改性沥青路面结构的抗车辙变形能力可提高20%.
분석료천연암석력청개성제적작용궤리,통과차철시험화동태연변시험연구료암력청개성력청혼응토적고온성능,병채용유한원분석계산료암력청개성제대력청로면결구항차철성능적영향.연구결과표명:암력청개성제가제고력청혼응토적모량,사혼합료적동은정도치화연변모량득도대폭제고,명현개선료력청혼합료적고온성능;여보통력청로면결구상비,암력청개성력청로면결구적항차철변형능력가제고20%.
The modification mechanism of natural rock asphalt modifier was analyzed.The hish-temperature performnce of modified asphalt concrete with natural rock asphalt Was studied based on rutting test and dynamic creep test,and the anti-rutting performnce of asphalt pavement structure affected by rock asphalt modifier was calculated with the finite software ANSYS.The results indicate that(1)the module of asphalt concrete,the dynamic stability and the creep module of asphalt mixture can be enhanced greatly and the high temperature performance of asphalt mixture can be strengthened obviously by using rock asphalt modifier;(2)the and-rutting ability of rock asphalt modified asphalt pavement structure can increase 20%compared with that of the common asphalt pavement structure.