Influence of the strain rate on the dynamic damage of cement-asphalt mortar in prefabricated slab tracks

2021 ◽  
Vol 299 ◽  
pp. 123944
Author(s):  
Juanjuan Ren ◽  
Wenlong Ye ◽  
Shijie Deng ◽  
Wei Du ◽  
Kaiyao Zhang
Keyword(s):  
Strain Rate ◽  
Cement Asphalt Mortar ◽  
Asphalt Mortar ◽  
Dynamic Damage

Role of temperature and strain rate on the stress reversal in dynamic damage of monocrystalline NiTi alloy

2022 ◽  
Vol 165 ◽  
pp. 104185
Author(s):  
Zhongpeng Qi ◽  
Liu He ◽  
Fang Wang ◽  
Jin Wang ◽  
Junliang Cheng ◽  
...  
Keyword(s):  
Strain Rate ◽  
Niti Alloy ◽  
Stress Reversal ◽  
Dynamic Damage

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.

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