Performance of Waste Cooking Oil on Aged Asphalt Mixture

• Main Authors: Abdul Hamid, N.H (Author), Abdul Hassan, N. (Author), Abdullah, M.E (Author), Huang Y.F (Author), Idris Ali, M. (Author), Leong K.H (Author), Ling L. (Author), Lopa, R.S (Author), Putra Jaya, R. (Author), Tan K.W (Author), Yaacob, H. (Author)
• Format: Article
• Language: English
• Published: EDP Sciences 2018
• Subjects: Acid value; Ageing conditions; Asphalt binders; Asphalt mixtures; Binders; Environmental engineering; Maintenance and rehabilitations; Marshall stability; Mixtures; Oils and fats; Optimum bitumen content; Resilient modulus; Waste cooking oil
• Online Access: View Fulltext in Publisher; View in Scopus

 Asphaltic concrete pavement is popular worldwide, but this type of pavement requires frequent maintenance and rehabilitation as it cannot cope up with the increasing number of traffic vehicles and loads. Therefore, modifying asphalt pavement to reduce the damages and defects is necessary, thereby enhancing the serviceability of pavement. This study presents the effect of waste cooking oil on asphalt mixture at different ageing conditions. A 60/70 penetration-grade asphalt binder was used, and 5% of this binder was replaced with untreated and treated waste cooking oil. Asphalt mixtures were prepared at the selected 5% optimum bitumen content and under two tests, i.e. Marshall stability and resilient modulus. The findings showed the better stability and resilient modulus of long-term aged samples incorporated with treated waste cooking oil than the unaged and short-term aged samples. The incorporation of untreated waste cooking oil caused reduced performance compared with the controlled and long-term aged samples. This result can be attributed to the high acid value of waste cooking oil. Therefore, treated waste cooking oil can be used as a binder replacement given its significantly higher performance at the mentioned ageing condition than the controlled mixture. © The Authors, published by EDP Sciences, 2018.