TITLE:
Pavement Performance Research Progress and Evaluation of Asphalt Mixture Incorporating Iron Ore Tailings
AUTHORS:
Yuefeng Zhu, Jiawei Zhang, Jie Yang, Gang Wang, Xiangzhen Zhao
KEYWORDS:
Iron Ore Tailings, Concrete, Asphalt Mixture, Adhesivity
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.10 No.3,
July
25,
2022
ABSTRACT: In order to solve the problems caused by the storage of iron ore tailings (IOTs), many researchers conducted a series of experimental studies on the reuse of IOTs. The results of many studies showed that it was feasible to use IOTs forroad engineering. This paper summarized the composition, gradation and particle characteristics of IOTs from chemical and physical aspects, and proved the feasibility of IOTs replacing traditional aggregate for asphalt concrete.Then, the research on the road performance of asphalt concrete incorporatingIOTs were summarized and reviewed, including the evaluation of high-temperature stability, low-temperature crack resistance, fatigue resistance and water stability. The water stability and the improvement of adhesion between asphalt and IOTs aggregate were discussed in detail. Finally, the performance of IOTs as asphalt concrete aggregate and the existing defects were evaluated, and future research directions were proposed.