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- Title
沥青路面结构层间加筋 性能试验研究.
- Authors
黄立葵; 冯晓东; 夏爱辉; 姜正晖; 黄冰
- Abstract
Five different types of reinforced materials such as three different sizes of steel wire mesh, fiberglass grid, and self-adhesive geotextile were selected for experiments to study the mechanical properties of pavement layer interface with steel wire mesh and explore the reinforcement mechanism. The rutting resistance and interlayer shear resistance of composite specimens reinforced with different materials were studied using the rutting tests and interlayer shear tests, and the anchoring performance of steel wire mesh between pavement structural layers was studied using the pull-out tests. The results show that steel wire mesh, fiberglass grid, and self-adhesive geotextile have a positive effect on improving the rutting resistance of composite specimens. The anti-rutting ability of composite specimens reinforced with steel wire mesh was significantly improved due to the stronger interlocking effect with the aggregates and the “plane confinement effect”. The steel wire mesh improves the shear resistance of composite specimens due to the satisfactory “passive shear” effect from the interlocking effect between steel wire mesh and aggregates. The self-adhesive geotextile and fiberglass grid have an adverse effect on the interlayer shear strength due to the isolation of the pavement layer interface. The pull-out resistance and anchoring stability of reinforced Ω-type steel wire are greatly improved as compared to straight wires, and the increased diameter of reinforced steel wire could also improve the anchoring performance of Ω -type steel wire mesh. The Ω -type hump could significantly enhance the anchoring performance of steel wire mesh between structural layers as a result of an increase in the frictional resistance between steel wire and interlayer aggregate and the “end bearing” effect of Ω-type hump after the deformation of the Ω-type mesh.
- Subjects
STEEL wire; WIRE netting; SHEAR strength; ASPHALT pavements; GLASS fibers; WIRE
- Publication
Journal of Railway Science & Engineering, 2023, Vol 20, Issue 2, p600
- ISSN
1672-7029
- Publication type
Article
- DOI
10.19713/j.cnki.43-1423/u.T20220488