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Feasibility of Magnesium Phosphate Cement (MPC) as a repair material for ballastless track slab
Construction and Building Materials, 2017Abstract Ballastless tracks are becoming more popular with their lower overall lifecycle costs and increased lateral load capabilities but cracking due to cyclic vehicle loads and temperature loads have known to cause cracking which has become a major problem for this kind of construction.
Ｂing Ｃｈｅｎ
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Damage Monitoring of Ballastless Track Slab Based on Optical Fiber Accelerometer
2021 19th International Conference on Optical Communications and Networks (ICOCN), 2021A real-time monitoring for ballastless track slab damage based on optical fiber accelerometers is proposed. The field test on the Beijing-Shanghai high-speed railway in China shows that this method can effectively identify the damaged track slabs.
Wentao Zhang +5 more
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Experimental Study on Stiffness and Strength of Ballastless Track Slabs
Advanced Materials Research, 2013CRTS I and CRTS II as well as two-layer two-way pre-tensioned prestressing ballastless track slabs were tested to compare their stiffness and strength. Midspan load-displacement curve was used to analyze the results. Based on the test results, the following conclusions can be obtained: The two-layer two-way pre-tensioned prestressing ballastless track ...
Yuan Yuan Shi, Peng Pan, Yan Ouyang
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Properties of the Concrete for the Slab Ballastless Track of CRTS III
Materials Science Forum, 2017Experimental research was conducted using concrete produced by adding the polycarboxylic-type water-reducing agent. The cement, sand, aggregates, fillers and water-reducing agent were used as the important raw materials for the concrete. Then the following properties of the concrete were analyzed: compressive strength, elastic modulus and frost ...
Xiao Rong Li +4 more
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Structural performance of ballastless track slabs reinforced with BFRP and SFCB
Composites Part B: Engineering, 2015Abstract Because of the inductive impedance caused by steel meshes in traditional reinforced ballastless track slabs, the electrical properties, primarily the rail resistance and inductance, of jointless track circuits are affected by electromagnetic induction between the slabs and the electric current in the rail.
Yang Yang +4 more
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Fatigue Life Prediction of CRTS I Ballastless Slab Track
ICTE 2011, 2011In order to predict the fatigue life of ballastless track which is at the section of uneven subgrade settlement, this paper uses the CRTS I ballastless slab track as an example. Considering the rebar of slab and base, a detailed vehicle-ballastless slab track-subgrade coupled model was established that was based on ANSYS/ADPL.
Shengyang Zhu, Chengbiao Cai
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Fatigue Performance of Ballastless Track Slabs Reinforced with BFRP and SFCB
Journal of Composites for Construction, 2017AbstractThe main objective of this research was to evaluate the behavior of fiber-reinforced polymer (FRP) bar-reinforced ballastless track slab subjected to a fatigue loading. Five ballastless track slabs were experimentally tested, which were reinforced with steel fiber–reinforced polymer composite bars (SFCBs), basalt fiber–reinforced polymer (BFRP)
Yang Yang, Gang Wu, Zhi-Shen Wu
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Temperature Deformation Analysis of CRTS II Ballastless Slab Track
2013 Joint Rail Conference, 2013Two finite element models of CRTS II ballastless track superstructure were developed to simulate temperature deformations of the precast concrete track slab. One of the models considered the fully bonding interface between the track slab and the cement asphalt mortar layers, while the other uses cohesive zone elements to simulate possible interfacial ...
Chunfa Zhao, Xiaolin Song, Xiaojia Zhu
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A novel dynamics model for railway ballastless track with medium-thick slabs
Applied Mathematical Modelling, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jianjin Yang +2 more
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Flexural Performance of Ultra-High Performance Concrete Ballastless Track Slabs
2016 Joint Rail Conference, 2016Ballastless track slab offers excellent stability and durability and has been well accepted in high-speed railways worldwide. Rails are typically laid on precast concrete slabs that are subjected to dynamic load transferred from the rails. Cracks can be induced by shrinkage and mechanical loading in concrete, which accelerates the degradation and ...
Weina Meng, Kamal Henri Khayat
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