Rheology investigation of combined binders from various polymers with GTR under a short term aging process
作者： Ouming Xu , Lin Cong , Feipeng Xiao , Serji N. Amirkhanian
DOI: 10.1016/J.CONBUILDMAT.2015.05.051
关键词:
摘要: Abstract Many polymers have popularly been used in asphalt paving industry to improve the resistances of rutting, fatigue, low temperature cracking and etc. Using a percentage ground tire rubber (GTR) with other reduce cost modified binder is interesting for some researchers. In present study, objective was conduct rheological investigation combined binders after short term aging process at high performance temperatures. The conventional testing procedures including dynamic shear rheometer (DSR) related properties such as failure temperature, G ∗ /sin δ , viscous flow, creep recovery, amplitude sweep frequency well stress relaxation were performed determine influences polymer type source on characteristics. experimental design included three base five polymers. test results indicated that, produce PG 76 by modifying 7% GTR are feasible affect recovery behaviors, viscoelastic properties, characteristics each binder. addition, terminally blended laboratory generally different trends blend styrene butadiene (SBS) this study but exhibit similar good procedure, thus recommended use field.
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