Laboratory Study on the Effect of Rejuvenator Material on Improvement Fatigue Performance of Aged Asphalt Pavement

سال انتشار: 1391
محل انتشار: نهمین کنگره بین الملی مهندسی عمران
کد COI اختصاصی: ICCE09_558
زبان مقاله: انگلیسی
تعداد مشاهده: 1265

نویسندگان

Associate Professor, Dept. of Civil Engineering, University of Guilan, Rasht, I. R. Iran

Postgraduate Student, Dept. of Civil Engineering, University of Guilan, Rasht, I. R. Iran

چکیده

Currently about 22 million km of world roads have been covered with asphalt pavements that around 1 million km of them are being repaired and rebuilt per year to ensure safety and performance requirements. Fatigue is one of the most important factors that could reduce the life of asphalt pavements. Over several years, due to the oxidation of bitumen hydrocarbons, the stiffness and flexible property of asphalt pavement is reduced and lead to the micro cracks in asphalt pavement. Using of rejuvenators agents in these mixtures is one solution to restore the initial properties of the aged asphalt mixtures. These agents restore the original ratio of Asphaltene to Maltene, and reduce the formation of cracks in the pavement layers. The purpose of this study is laboratory research on the effect of rejuvenator material in restoring the original properties of asphalt pavement that aged with Rolling Thin Film Oven test. For this purpose, the indirect tensile fatigue test is carried out on initial asphalt samples and aged asphalt samples that containing rejuvenators agents. The result illustrate that the using of rejuvenators materials in aged asphalt samples cause to significantly improvement in fatigue life in comparison with initial asphalt samples.

کلیدواژه ها

Rejuvenator Material, Asphalt Pavement, Fatigue, Aging, Rolling Thin Film Oven

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.