Evaluation on full-scale testbed performance of cement asphalt mortar for ballasted track stabilization

2020 ◽  
Vol 254 ◽  
pp. 119249
Author(s):  
Tri Ho Minh Le ◽  
Seong-Hyeok Lee ◽  
Dae-Wook Park
Keyword(s):  
Full Scale ◽  
Cement Asphalt Mortar ◽  
Ballasted Track ◽  
Asphalt Mortar

Strength Mechanism of Cement-Asphalt Mortar

2011 ◽  
Vol 23 (9) ◽  
pp. 1353-1359 ◽  
Author(s):  
Wang Qiang ◽  
Yan Peiyu ◽  
A. Ruhan ◽  
Yang Jinbo ◽  
Kong Xiangming
Keyword(s):  
Cement Asphalt Mortar ◽  
Asphalt Mortar

scholarly journals Effect of Water and Emulsifier on the Mechanical Properties of Cement Asphalt Mortar

2019 ◽  
Vol 271 ◽  
pp. 03002
Author(s):  
Tri Ho Minh Le ◽  
Dae-Wook Park ◽  
Jung-Woo Seo
Keyword(s):  
High Speed ◽  
Mechanical Performance ◽  
Strength Development ◽  
Mechanical Degradation ◽  
Asphalt Emulsion ◽  
Term Operation ◽  
Cement Asphalt Mortar ◽  
Rail Structure ◽  
Asphalt Mortar ◽  
Mixing Water

The long-term operation of high-speed railway leads to remarkable issues in ballast mechanical degradation and track irregularity. Particularly, in mainline of rail structure, the required time for ballast layer maintenance is strictly short. To systematically cope with this problem, a comprehensive study was proposed to develop a new cement asphalt mortar (CAM) stabilized ballast method. This solution is expected to improve the ballast structural durability with fast application time. However, the engineer properties of CAM paste with different level of initial mixing water as well as the influencing mechanisms are not clearly understood. In this work, the effects of initial mixing water and emulsifier on the mechanical performance of CAM are mainly discussed. The characteristics of the mortar were determined by conducting the flowability test, mixing stability test, and unconfined compressive strength (UCS) test. The test results revealed that the initial mixing water plays an important role in both fresh and hardened stage of CAM, especially the demulsification process of asphalt emulsion. Meanwhile, the emulsifier imposed a critical effect on the strength development of CAM mixture.

Characterization of Cement Asphalt Mortar for Slab Track by Dynamic Mechanical Thermoanalysis

2016 ◽  
Vol 28 (3) ◽  
pp. 04015154 ◽  
Author(s):  
Qiang Yuan ◽  
Wentao Liu ◽  
Yunrui Pan ◽  
Dehua Deng ◽  
Zanqun Liu
Keyword(s):  
Slab Track ◽  
Dynamic Mechanical ◽  
Cement Asphalt Mortar ◽  
Asphalt Mortar

Preliminary Study on Asphalt Emulsion Used in Cement Asphalt Mortar

2009 ◽  
Vol 37 (5) ◽  
pp. 000395 ◽  
Author(s):  
M. R. Mitchell ◽  
R. E. Link ◽  
Wang Fazhou ◽  
Zhang Yunhua ◽  
Liu Yunpeng ◽  
...  
Keyword(s):  
Asphalt Emulsion ◽  
Cement Asphalt Mortar ◽  
Preliminary Study ◽  
Asphalt Mortar
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