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Effects of High Temperature on Creep Properties of Cement and Emulsified Asphalt Mortar
Publisher: ASCE
Abstract: As an inorganic–organic composite material, cement and emulsified asphalt (CA) mortar has been used widely in ballastless slab track structures, and its performance is influenced significantly by environmental conditions. ...
Influence of Molybdenum Tailings Powder on the Hydration Characteristics of Cement Paste
Publisher: ASCE
Abstract: Molybdenum tailings are accumulated in large quantities, occupying the land and polluting the environment. Therefore, the resource utilization of molybdenum tailings is imperative. In this paper, the influence of molybdenum ...
Development of High-Performance Self-Compacting Concrete Applied as the Filling Layer of High-Speed Railway
Publisher: American Society of Civil Engineers
Abstract: The filling layer of a China rail track system III (CRTS III) type ballastless track structure of a high-speed railway is a complicated structure typically constructed from self-compacting concrete (SCC). Excellent properties ...
Properties of High-Early-Strength Aerated Concrete Incorporating Metakaolin
Publisher: American Society of Civil Engineers
Abstract: Conventional portland cement–based aerated concrete needs autoclaved curing in order to obtain high early-stage strength. Magnesium phosphate cement–based lightweight materials, such as aerated magnesium phosphate cement ...
Study of the Vibration Reduction Performance of Rubberized Self-Compacting Concrete Filling Layer in Prefabricated Slab Track
Publisher: American Society of Civil Engineers
Abstract: Theoretically, there are two approaches to reducing the vibration induced by railway transit in cities: lowering structural stiffness, often used in subway design to isolate vibration, and absorbing the vibration by improving ...
Investigating Concrete Performance: Compressive Strength and Pore-Structure Evolution in Simulated Permafrost Conditions of the Qinghai–Tibet Plateau Zone
Publisher: ASCE
Abstract: As construction continues, a large number of concrete engineering facilities will be put into use in permafrost areas, which poses a challenge to the long-term service of concrete materials. To investigate the evolution ...
Effect of Packing Density According to CPM on the Rheology of Cement–Fly Ash–Slag Paste
Publisher: ASCE
Abstract: Particle-packing theory has been widely applied in the field of composite particle materials, and packing density (Φ) is an important parameter to evaluate the compactness of particle packing. In this paper, the rheological ...
Effects of Nanoalumina and Graphene Oxide on Early-Age Hydration and Mechanical Properties of Cement Paste
Publisher: American Society of Civil Engineers
Performance Evolution and Damage Constitutive Model of Thin Layer SCC under the Coupling Effect of Freeze–Thaw Cycles and Load
Publisher: ASCE
Abstract: Self-compacting concrete (SCC) is widely used in the China Rail Track System (CRTS) III slab ballastless track filling-layer structure for high-speed railways (HSRs). In cold regions, the thin filling-layer SCC is subjected ...