High Temperature Rheological Performance of Graphene Modified Rubber Asphalt  

作　　者：Heyuan GUO Chunhua LI Xin ZHAO Yinghua YUAN Shaoqi TANG Yongjun MENG 

机构地区：[1]GuangXi Vocational College of Safety Engineering,Nanning,Guangxi,530004,China [2]College of Civil Engineering and Architecture,Guangxi University,Nanning,Guangxi,530004,China

出　　处：《Research and Application of Materials Science》2024年第1期9-15,共7页材料科学与应用（英文）

摘　　要：To elucidate the high temperature rheological capability of graphene modified rubber asphalt,three contents of graphene and crumb rubber were prepared by a combination of mechanical agitation and high speed shearing machine,then used dynamic shear rheological test(DSR)and multiple stress creep recovery(MSCR)tests to evaluate.The hardness and softening point with rotational viscosity of samples raised with the addition of graphene,especially the addition of 0.04%.Dynamic shear rheological test revealedthat the dynamic shear modulus G*,rutting factor G*/Sin δ,and zero shear viscosity(ZSV)of graphene-modified rubber asphalt were greatly influenced along with graphene-increased,on the contrary,phase angle δ which characterize the viscoelastic ratio of asphalt decreased.Multiple stress creep recovery(MSCR)tests showed that the graphene-enhanced rubber asphalt had high-temperature stability through non-recoverable creep compliance(Jnr).Based on these findings,graphene-modified rubber asphalt binders with the addition of 0.04% graphene had good viscoelastic properties as well as high temperature rutting resistance performance.In the meantime,G*/Sin δ,ZSV,and Jnr100,Jnr3200 have good correlation,which can reveal the excellent high-temperature stability performance of asphalt.

关 键 词：GRAPHENE High Temperature rheological properties MSCR Zero shear viscosity RUTTING 

分 类 号：TG1[金属学及工艺—金属学]