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

Abdulnaser Al-Sabaeei, Madzlan Napiah, Muslich Sutanto, Noor Zainab Habib, Nura Bala, Intan Kumalasari, Aiban Ghaleb

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
JournalRoad Materials and Pavement Design
Early online date1 Jul 2021
DOIs
Publication statusE-pub ahead of print - 1 Jul 2021

Keywords

  • MSCR
  • Nano silica
  • rheological properties
  • rubber modified bitumen
  • rutting resistance
  • tyre pyrolysis oil

ASJC Scopus subject areas

  • Civil and Structural Engineering

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