Performance of Aged Asphalt Binder Treated with Various Types of Rejuvenators

Rejuvenators Aged Asphalt Binder Physical Chemical Rheological Properties.

Authors

  • Munder Bilema
    mondo199131@gmail.com
    1) Kabiru Ahmad 5, Kabiru Rogo 3 1 Department of Civil Engineering, Faculty of Engineering, Benghazi University, Benghazi, Libya. 2) Department of Highway and Traffic Engineering, Faculty of Civil Engineering and Environmental, University Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia., Libya https://orcid.org/0000-0002-2060-6873
  • Yusri Bin Aman Department of Highway and Traffic Engineering, Faculty of Civil Engineering and Environmental, University Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor,, Malaysia
  • Norhidayah Abdul Hassan Department of Geotechnics & Transportation, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor,, Malaysia
  • Zaid Al-Saffar Building and Construction Engineering, Technical College of Mosul, Northern Technical University, Mosul,, Iraq
  • Kabiru Ahmad Department of Civil Engineering, Faculty of Engineering, Bayero University Kano, 3011 Kano State,, Nigeria
  • Kabiru Rogo Department of Geotechnics & Transportation, School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor,, Malaysia

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High demand for asphalt binders in road construction verifies the need of finding alternative materials through asphalt pavement recycling. This paper investigated the impact of different rejuvenators on the performance of an aged asphalt binder. Virgin Olive oil, virgin cooking oil, waste cooking oil, virgin engine oil, and waste engine oil were added to a 30/40 penetration grade aged asphalt binder at a fixed oil content of 4% for all types. The wet method was used to blend the rejuvenators and aged asphalt binder. The physical, rheological, and chemical properties of the rejuvenated asphalt binder were evaluated using several laboratory tests which include penetration, softening point, bleeding, loss on heating, storage stability, penetration index, ductility, viscosity, dynamic shear rheometer, and Fourier transform infrared spectroscopy. The outcomes of the physical properties showed that the olive, waste, and virgin cooking rejuvenators can restore the aged asphalt binder to a penetration grade of 60/70. In contrast, the virgin and waste engine oil required a more quantity of oil to rejuvenate the aged asphalt binder. A sufficient amount of rejuvenator could regenerate the (G*/sin δ), (δ°), and (G*) for the aged asphalt binder. The addition of virgin olive and cooking oils in aged asphalt led to a rutting issue. No chemical reactions were observed with the addition of rejuvenators but they give an impact on reducing the oxidation level of the aged asphalt binder. As a result, further research should be performed on waste cooking oil given that it is inexpensive and provides excellent performance results.

 

Doi: 10.28991/cej-2021-03091669

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