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- W4200572203 abstract "The article aims to present the modified structural composition of the sub-ballast layers of the railway substructure, in which a part of the natural materials for the establishment of sub-ballast or protective layers of crushed aggregate is replaced by thermal insulation and reinforcing material (layer of composite foamed concrete and extruded polystyrene board). In this purpose, the experimental field test was constructed and the bearing capacity of the modified sub-ballast layers' structure and temperature parameters were analyzed. A significant increase in the original static modulus of deformation on the surface of composite foamed concrete was obtained (3.5 times and 18 times for weaker and strengthen subsoil, respectively). Based on real temperature measurement, it was determined the high consistency of the results of numerical analyses and experimental test (0.002 m for the maximum freezing depth of the railway line layers and maximum ±0.5 °C for temperature in the railway track substructure-subsoil system). Based on results of numerical analyses, modified railway substructure with built-in thermal insulating extruded materials (foamed concrete and extruded polystyrene) were considered. A nomogram for the implementation of the design of thicknesses of individual structural layers of a modified railway sub-ballast layers dependent on climate load, and a mathematical model suitable for the design of thicknesses of structural sub-ballast layers of railway line were created." @default.
- W4200572203 created "2021-12-31" @default.
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- W4200572203 date "2021-12-26" @default.
- W4200572203 modified "2023-10-14" @default.
- W4200572203 title "Experimental and Numerical Verification of the Railway Track Substructure with Innovative Thermal Insulation Materials" @default.
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- W4200572203 doi "https://doi.org/10.3390/ma15010160" @default.
- W4200572203 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35009306" @default.
- W4200572203 hasPublicationYear "2021" @default.
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