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논문 기본 정보

자료유형
학술대회자료
저자정보
Li, Qiang (Sejong University.Department of Civil and Environmental Engineering) Lee, Hyun-Jong (Sejong University.Department of Civil and Environmental Engineering) Hwang, Eui-Yoon (SK energy Institute of Technology.Asphalt Group)
저널정보
한국도로학회 한국도로학회 학술발표회 논문집 한국도로학회 2010년 추계학술대회 논문집
발행연도
2010.1
수록면
99 - 107 (9page)

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A permanent deformation model was developed in this study based on the shear properties of asphalt mixtures such as cohesion and friction angle. Triaxial compressive strength (TCS) and repeated load permanent deformation (RLPD) tests on the three types of asphalt mixtures are performed at various loading and temperature conditions to correlate shear properties of asphalt mixtures to rutting performance. It is observed from the tests results that the ratio of shear stress to strength accurately identifies the mixture rutting performance. It could take care of not only mixture types but also load and temperature conditions dependences. Three different versions of the permanent deformation model based on different input levels are proposed and verified using the tests data. The proposed model based on the ratio of shear stress to strength can successfully predict the permanent deformation of various asphalt mixtures all the way up to the 10% of permanent strain including all three stages of permanent deformation in a wide range of loading and temperature conditions without changing model coefficients.

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