Engineering characterisation of epoxidized natural rubber-modified hot-mix asphalt

Ramez A. Al-Mansob, Amiruddin Ismail, Nur Izzi Md Yusoff, Riza Atiq Abdullah O.K. Rahmat, Muhamad Nazri Borhan, Shaban Ismael Albrka, Che Husna Azhari, Mohamed Rehan Karim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Road distress results in high maintenance costs. However, increased understandings of asphalt behaviour and properties coupled with technological developments have allowed paving technologists to examine the benefits of introducing additives and modifiers. As a result, polymers have become extremely popular as modifiers to improve the performance of the asphalt mix. This study investigates the performance characteristics of epoxidized natural rubber (ENR)-modified hot-mix asphalt. Tests were conducted using ENR±asphalt mixes prepared using the wet process. Mechanical testing on the ENR±asphalt mixes showed that the resilient modulus of the mixes was greatly affected by testing temperature and frequency. On the other hand, although rutting performance decreased at high temperatures because of the increased elasticity of the ENR±asphalt mixes, fatigue performance improved at intermediate temperatures as compared to the base mix. However, durability tests indicated that the ENR±asphalt mixes were slightly susceptible to the presence of moisture. In conclusion, the performance of asphalt pavement can be enhanced by incorporating ENR as a modifier to counter major road distress.

Original languageEnglish
Article numbere0171648
JournalPLoS One
Volume12
Issue number2
DOIs
Publication statusPublished - 1 Feb 2017

Fingerprint

asphalt
bitumen
Rubber
rubber
engineering
distress
Temperature
roads
Asphalt pavements
Mechanical testing
testing
temperature
Elasticity
Polymers
Durability
Moisture
durability
elasticity (mechanics)
Fatigue of materials
Fatigue

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Engineering characterisation of epoxidized natural rubber-modified hot-mix asphalt. / Al-Mansob, Ramez A.; Ismail, Amiruddin; Md Yusoff, Nur Izzi; O.K. Rahmat, Riza Atiq Abdullah; Borhan, Muhamad Nazri; Albrka, Shaban Ismael; Azhari, Che Husna; Karim, Mohamed Rehan.

In: PLoS One, Vol. 12, No. 2, e0171648, 01.02.2017.

Research output: Contribution to journalArticle

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