خصوصیات رئولوژیکی چسباننده آسفالت
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خصوصیات رئولوژیکی چسباننده آسفالت

عنوان فارسی مقاله: خصوصیات رئولوژیکی چسباننده آسفالت اصلاح شده با مواد آسفالت بازیافتی و پلیمرهای خود ترمیم فعال شده با نور
عنوان انگلیسی مقاله: Rheological properties of asphalt binder modified with recycled asphalt materials and light-activated self-healing polymers
مجله/کنفرانس: مصالح ساختمانی و ساخت و ساز – Construction and Building Materials
رشته های تحصیلی مرتبط: مهندسی عمران، مهندسی پلیمر
گرایش های تحصیلی مرتبط: مهندسی راه و ترابری، پلیمریزاسیون
کلمات کلیدی فارسی: خود ترمیم، پلیمر، اشعه فرابنفش، چسباننده آسفالت، مواد آسفالت بازیافتی
کلمات کلیدی انگلیسی: Self-healing، Polymer، UV light، Asphalt binder، Recycled asphalt materials
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.conbuildmat.2019.05.189
دانشگاه: Department of Construction Management, Louisiana State University, United States
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 4.686 در سال 2018
شاخص H_index: 129 در سال 2019
شاخص SJR: 1.522 در سال 2018
شناسه ISSN: 0950-0618
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 9
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E12387
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1-Introduction


2-Objectives and scope


3-Background


4-Experimental program


5-Results and analysis


6-Conclusions


7-Future work


Declaration of Competing Interest


Acknowledgments


References

نمونه متن انگلیسی مقاله

Abstract


Ultraviolet (UV), light-activated, self-healing polymers are an emerging technology that was proposed to enhance the elastic behavior of asphalt binder, while improving its self-healing properties. The objective of this study was to evaluate the effects of self-healing polymer on the rheological properties of binder blends prepared with or without recycled asphalt materials. Binder blends were prepared with two different binders (PG 67-22 and PG 70-22M), with or without recycled asphalt materials, and 5% self-healing polymer (Oxetane-substituted Chitosan-Polyurethane). High-Pressure Gel Permeation Chromatography (HP-GPC) results showed an increase in High Molecular Weight (HMW) components in the binder with an increase in stiffness through the addition of recycled materials. A further increase was observed with the addition of self-healing polymer. Fourier Transform Infrared Spectroscopy (FTIR) confirmed HighPressure Gel Permeation Chromatography (HP-GPC) results with an increase in the carbonyl index. Furthermore, the addition of recycled materials led to an increase in the high-temperature grade and the low-temperature grade of the binder blends, while the self-healing polymer did not have a significant effect on the PG-grade. Overall, the addition of self-healing polymer led to an increase in stiffness and an improvement in the rutting performance, while it did not have a positive effect on low-temperature cracking performance. For unmodified binder (PG 67-22), self-healing polymer incorporation improved the elastic and fatigue cracking properties of the binder. However, when it was added to a polymermodified binder (PG 70-22M) and/or binder blends containing recycled asphalt materials, the potential of this material was low to negative on the low temperature and fatigue cracking performances.


Introduction


Asphalt binder is a viscoelastic material with self-healing abilities, which can restore its original properties by healing the micro-cracks and providing an asphalt mixture with higher durability. Yet, the rate of asphalt mixture’s crack healing process is slow for conventional asphalt binders at ambient temperature and under continuous loading [1]. On the other hand, the application of recycled asphalt materials such as Reclaimed Asphalt Pavement (RAP) and Recycled Asphalt Shingle (RAS) has received considerable attention due to its economic and environmental advantages. Various studies have been conducted in recent years with the aim to produce asphalt mixtures with high percentages or even 100% of recycled materials [2–۵]. Even with these advantages, the use of high content of recycled asphalt materials is challenging as the recycled binder is subjected to oxidation and aging during its service life. A severely aged binder is hardened and brittle, and as a result, it may increase the cracking susceptibility of the newly constructed mixture. In addition, the increase in the binder’s viscosity and the loss of relaxation can negatively affect the selfhealing properties of the binder, possibly causing premature failure of the pavement.

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