Application of nano silica particles to improve high-temperature rheological performance of tyre pyrolysis oil-modified bitumen

• Main Authors: Al-Sabaeei, A., Napiah, M., Sutanto, M., Habib, N.Z., Bala, N., Kumalasari, I., Ghaleb, A.
• Format: Article
• Published: Taylor and Francis Ltd. 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109315251&doi=10.1080%2f14680629.2021.1945483&partnerID=40&md5=a638280627b5f8dc22c593b7c579d1a4; http://eprints.utp.edu.my/23801/
• Institution: Universiti Teknologi Petronas

This study aimed to evaluate the effects of nano silica (NS) particles on the high-temperature rheological properties of tyre pyrolysis oil (TPO)-modified bitumen. Physical tests, short-term aging, temperature sweep test and multiple stress creep recovery (MSCR) test were conducted to evaluate the effects of NS on the high-temperature rheological performance. Results indicate that the inclusion of NS to TPO-modified bitumen displayed significant improvement in rutting resistance before and after aging. Meanwhile, MSCR results showed that the high-temperature performance grade of bitumen was upgraded from PG 64S in the case of base and TPO-modified bitumen to PG 64 V at 10 TPO and 4 NS. Statistical analysis also showed that the effects of NS particles on the rutting performance of TPO-modified bitumen are statistically significant within the confidence interval of 95. These findings present a remarkable enhancement in the high-temperature performance of TPO-modified bitumen. © 2021 Informa UK Limited, trading as Taylor & Francis Group.