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Three-dimensional elastoplastic finite-element (FE) simulations of ballast deformation in a track with focus on lateral resistance have been conducted. Ballast geometry, vertical and lateral loading, and friction between ballast and sleeper are being varied in a parametric study. Sleeper displacements are studied under different conditions in ...
This study is supported by the China Academy of Railway Science funding (2020YJ081). We would like to thank Jikun Li (Beijing Railway Bureau) for providing valuable engineering experiences on railway maintenance. ... Abrasion evolution of steel furnace slag aggregate for railway ballast: 3D morphology analysis of scanned particles …
The current utilization rate of steel slag is only 22% in china, far behind the developed countries. ... the use of steel slag as railway ballast is anticipated to reduce the cost of ballast/track ...
Results show that, with the same track superstructure and subgrade condition, the rail support modulus of test track in steel slag ballast section is 1.64 times greater than that of limestone ...
Abstract. The use of recycled materials is a new tendency in the field of railway engineering. Steel slag aggregates (SSA) are one of the recycled materials …
In recent years, the use of steel slag as railway ballast material has been proposed by many countries. Use of steel slag as ballast and sub-ballast material has been recom-mended by national slag association [4]. In the USA, the steel slag ballast is used to elevate the railway line near the California-Nevada border [4]. In Brazil, the steel slag
Learn more about the railroad track ballast. Mark Robak. 402-563-2350. Tim Starostka. 402-563-4875. Pat Phillips. 402-910-4138. Ryan Karr. 402-909-2901. Menu . Home; Our Services; ... Contact R&S Track For Your Railway Maintenance Needs Today. Ballast is an extremely important aspect of railroad construction. Not only does it keep …
tion process in China, as highway pavement in Japan and Australia. BOF slag is also currently ... S.K.K. 2022. Use of steel slag as railway ballast: A review. Transportation Geo-technics, 35, 100779.
Railway ballast, for which natural crushed stone aggregates have been generally used, is an essential track component for the distribution of train loads along the rails and sleepers to the roadbed. However, the use of natural crushed stone aggregate causes environmental destruction as well as dust production in train service. This paper evaluates the …
CSX C30-7 #7006 and U23B #9553 (in maintenance-of-way orange) have a ballast train at Cuyahoga Falls, Ohio during October of 2000. American-Rails collection. Of course, while crushed stone (often limestone or quartz) is the aggregate of choice for today's railroads in years past everything from slag to cinders has been used …
BOF slag has been utilized as a railway ballast in Brazil, USA, Canada, and Iran (Hussain and Hussaini, 2022). Previous research on BOF slag concluded that BOF slag has higher resistance against ...
This paper can contribute to progress in (1) improving ballast specifications in China, (2) developing new ballast materials, (3) saving resources and costs by adapting different railways to local ...
This means using a simple calculation according to annually steel slag production rate in countries of Iran, Japan, Australia and China after almost 1000 km, …
Steel slag as rail ballast exhibits interesting technical properties, such as a higher modulus of elasticity, lower vertical stress, and lower permanent deformation …
Steel Slag Aggregate Characteristics Evaluation as Railway Ballast. January 2022. DOI: 10.1007/978-3-030-77234-5_37. Conference: Advances in Transportation …
Further, the field application of steel slag as rail ballast has indicated lower vertical stress and higher track modulus. These observations imply that the use of steel slag ballast (SSB) can ...
eBook ISBN 9781315100333. ABSTRACT. Steel slag is cubical in shape with a high angle of internal friction and high aggregate interlocking characteristics. The material has the …
For example, in China, the China Academy of Railway Sciences tests if the parent rock materials are suitable to make ballast bed following the Chinese standard [41], ... Analysis of furnace slag in railway sub-ballast based on experimental tests and DEM simulations. Constr. Build. Mater., 288 (2021), p. 123114.
Electric Arc Furnace steel slag aggregate has potential for wider application in railway infrastructures. Nonetheless, its use in ballast layers, as an alternative to natural crushed rock, is ...
Esmaeili M, Nouri R, Yousefian K. Experimental comparison of the lateral resistance of tracks with steel slag ballast and limestone ballast materials. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of …
Elastic modulus of each steel slag-stone ballast combination is obtained.. A dynamic analysis was conducted on a railway ballasted track.. Five combinations of steel slag-stone ballast were researched in FEM analysis.. Deflection of track components and sleeper acceleration RMS were researched.. Combination of 75% steel slag by weight of …
Stones of 1 to 3-1/2 inches in size are preferred. Hard crushed furnace slag, some kinds of dense lava, and mine tailings have also found mainline use. In steam days, cinders were an abundant source of ballast; limestone, pit-run gravel, sand, and even crushed seashells have been used. The average life of ballast depends on train …
Tamping is the most widely applied means for ballast track maintenance, and it is necessarily performed for newly built railway lines [15]. It is also helpful for improving track stability and ballast bed performance. In addition, it corrects the ballasted track geometry by lifting up and shifting the rail and sleeper.
Request PDF | Railway ballast | Railway ballast is normally made of crushed rocks with grading (particle size distributions). ... Beijing jiatong university, china; ... the behavior of steel slag ...
Crushed stone from natural sources is commonly used as ballast in railways. The material is a good ballast, but its extraction is destructive. Therefore, this study characterizes basic oxygen furnace (BOF) slag as an alternative material for railway ballast in Kazakhstan with respect to physical, mechanical, chemical and environmental …
The coefficient of uniformity (C u) and the coefficient of curvature (C c) of PSD curve used for both materials were, respectively, 1.94 and 1.02, which are typical of uniformly graded granular materials, but more well graded than some limits for ballast, like the European ballast specification, per example [14].The values of particle specific …
Chamling et al. (2020) proposed that the steel slag could be used as an alternative to the natural aggregates as a railway ballast material for particle sizes ranging from 63 mm passing and 20 mm ...
Volume 41, July 2023, 101042. Railway ballast performance: Recent advances in the understanding of geometry, distribution and degradation. Can Shi a., Zheng Fan b., …
Results show that, with the same track superstructure and subgrade condition, the rail support modulus of test track in steel slag ballast section is 1.64 times greater than that of limestone ...
Therefore, this study characterizes basic oxygen furnace (BOF) slag as an alternative material for railway ballast in Kazakhstan with respect to physical, mechanical, chemical and environmental ...
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