| Autor: |
Yusoff, Nur Izzi Md., Ibrahim, Ahmad Nazrul Hakimi, Salah, Amr Abdulrahman Aziz, Salah, Abdul Wahid Mohammed, Khairuddin, Faridah Hanim, Rosyidi, Atmaja P., Memon, Naeem Aziz |
| Předmět: |
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| Zdroj: |
Jordan Journal of Civil Engineering; 2019, Vol. 13 Issue 3, p489-500, 12p |
| Abstrakt: |
The 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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