Research on the dynamic mechanical properties of cement emulsified asphalt mortar for high-speed railway: A review
Source abstract
Abstract
Cement emulsified asphalt mortar (CA mortar), as one of the key structural layers of slab ballastless track for high-speed railways, consists of cement, emulsified asphalt, sand, water, and appropriate additives, etc., which plays the roles of adjusting, supporting, load transferring, vibration damping, and vibration isolation. The research progress of CA mortar in mix proportion design, dynamic viscoelasticity, dynamic mechanical properties, and fatigue properties were reviewed in this paper, the shortcomings of the current research were analyzed, and the key directions of CA mortar dynamic mechanical properties were explored and prospected that need to be researched urgently in the future, including the intelligent design method of CA mortar mix proportion, the dynamic mechanical properties and damage mechanism of CA mortar under the action of multi-factor coupling, and the dynamic constitutive model construction and numerical simulation of CA mortar. It could provide theoretical support for the operation and maintenance of CA mortar of slab ballastless track and the research and development of new CA mortar.
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Research context
OpenAlex topics: Railway Engineering and Dynamics · Asphalt Pavement Performance Evaluation · Civil and Geotechnical Engineering Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Future Transportation, Guangzhou Maritime University 1 , Guangzhou 510725,
Guangdong Provincial Key Laboratory of Green Construction and Intelligent Operation & Maintenance for Offshore Infrastructure, Guangzhou Maritime University 2 , Guangzhou 510725,
Key Laboratory of Railway Industry of Infrastructure Safety and Emergency Response, Shijiazhuang Tiedao University 3 , Shijiazhuang 050043,
Funding
Guangdong Basic and Applied Basic Research Foundation · Guangzhou Science and Technology Poject · Guangdong Province Key Construction Discipline Capacity Enhancement Project · Youth Tanlent Support Program of the China Association for Science and Technology
References (100+)
Show source-provided references
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