Abstract: Cement emulsified asphalt mortar (CA mortar) which consists of cement, emulsified asphalt, sand, water, an appropriate amount of additives, and other components, is a kind of viscoelastic organic-inorganic composite material formed by gluing cement sand aggregate at normal temperature using the combinational cementing matrix that contains the hydration products of cement hydration reaction and asphalt. It is one of the key materials used in high-speed railway plate-type ballastless track structure, and executes the roles of supporting, adjusting, buffering and coordinating. This paper aims to provide support for the operation and maintenance of cement emulsified asphalt mortar filling layer for high-speed railway slab ballastless track as well as R&D of new organic-inorganic composite viscoelastic materials. It reviews the typical composition and proportion of CA mortar, comprehensively analyzes the work performance, mechanical properties, durability and deformation performance and their main influencing factors, delineates the microstructural formation and evolution characteristics, and finally outlines the principal directions of CA mortar in the future.
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2018, Vol. 32 
