Affiliation:
1. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China
2. Henan Key Laboratory of Safety Technology for Water Conservancy Project, Henan Provincial Water Conservancy Technology Application Center, Zhengzhou 450003, China
Abstract
In order to improve the basic pavement performance of high-elastic asphalt concrete filled in the expansion longitudinal joints of seamless bridges, rubber particles and polyester fibers were added to optimize the mix proportion of elastic asphalt concrete, and the optimal asphalt–aggregate ratio was determined. The influence of rubber particles and polyester fibers on the basic pavement performance of high-elastic asphalt concrete was studied. The results show that when the dosage of polyester fiber is not more than 0.6%, the optimal asphalt–aggregate ratio is 1:5, and when it exceeds 0.6%, the optimal asphalt–aggregate ratio is 1:4. The incorporation of rubber particles reduces the compressive strength of high-elastic asphalt concrete but enhances its high-temperature stability, fracture performance, and deformation recovery ability. The incorporation of polyester fibers improves its compressive strength, high-temperature stability, fracture performance, and deformation recovery ability. In addition, the incorporation of rubber granules and polyester fibers promotes the use of green building materials and provides strong support for sustainable building practices.
Funder
National Key Scientific Instruments and Equipments Development Project of China
Scientific and Technological Research Project in Henan Province
National Natural Science Foundation of China