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The Effects Of Moisture Susceptibility And Ageing Conditions On Engineering Properties Of Nanosilica-polymer- Modified Asphalt Blended With High Rap Contents

Submitted2019-08-27
Last Update2019-08-27
TitleThe Effects Of Moisture Susceptibility And Ageing Conditions On Engineering Properties Of Nanosilica-polymer- Modified Asphalt Blended With High Rap Contents
Author(s)Author #1
Author title:
Name: Nur Izzi Md. Yusoff
Org: Dept. of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
Country:
Email:

Author #2
Author title:
Name: Ahmad Nazrul Hakimi Ibrahim
Org: Dept. of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
Country:
Email: ahmadnazrulhakimi@gmail.com

Author #3
Author title:
Name: Amr Abdulrahman Aziz Salah
Org: Dept. of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
Country:
Email:

Author #4
Author title:
Name: Faridah Hanim Khairuddin
Org: Dept. of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
Country:
Email:

Author #5
Author title:
Name: Abdul Wahid Mohammed Salah
Org: Dept. of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
Country:
Email:

Other Author(s)Sri Atmaja P. Rosyidi Dept. of Civil and Structural Engineering, Universitas Muhammadiyah Yogjakarta, Indonesia Naeem Aziz Memon Dept. of Civil Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan
Contact AuthorAuthor #2
Alt Email: ahmadnazrulhakimi@gmail.com
Telephone:
KeywordsNanosilica, Recycled asphalt pavement, Dynamic modulus, Indirect tensile strength, Resilient modulu.
AbstractThe effects of mixing nanosilica with recycled asphalt pavement (RAP) on the properties of asphalt mixtures with different ageing and moisture susceptibility conditions were investigated. A polymer-modified asphalt (PMA), PG76, was mixed with varying percentages of nanosilica; namely, 0, 2, 4 and 6% by weight of asphalt and 50% RAP by weight of aggregate. Results showed that mixing nanosilica/PMA with 50% RAP improved the characteristics of resilient modulus and dynamic modulus under unaged, short-term ageing and long-term ageing conditions under both dry and wet conditions. The values for indirect tensile strength, resilient modulus and dynamic modulus tests under dry and long-term conditions are higher compared to the values for samples under wet and unaged condition; these values increased when the percentage of nanosilica was increased. The addition of 50% RAP to 6% nanosilica (6%NS/PMA + 50%RAP) was found to be the best combination in improving the performance characteristics of PMA under various conditions.
Paperview paper 4775.pdf (445KB)

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