Study on the optimum rice husk ash content added in asphalt binder and its modification with bio-oil

• Published in: Construction & building materials Vol. 147; pp. 776 - 789
• Main Authors: Han, Zhenqiang, Sha, Aimin, Tong, Zheng, Liu, Zhuangzhuang, Gao, Jie, Zou, Xiaolong, Yuan, Dongdong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 30.08.2017; Elsevier B.V
• Subjects: Agricultural by-products; Asphalt cement; Binders (Materials); Flexible pavement; Mechanical properties; Modified asphalt; Pavement cracking; Thermal properties; Flexible pavement; Performance; Agricultural by-products; Modified asphalt

[Display omitted] •Rice husk ash was used as modifier to improve high temperature properties of asphalt.•1% and 7% were confirmed as the optimum content and upper limit for rice husk ash.•Bio-oil improved the low temperature and fatigue property of RHA modified asphalt.•1% rice husk ash/20% bio-oil...