Assesment of the possibility of foam glass application in the sub-ballast layers
The paper investigates whether foam glass could reduce the structural thickness of the protection layer in the construction of the railway track (saving of natural materials – crushed aggregate) and, at the same time, also provide sufficient thermal protection of the frost-susceptible subgrade surf...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2023-02-01
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| Series: | Journal of Civil Engineering and Management |
| Subjects: | |
| Online Access: | https://jeelm.vgtu.lt/index.php/JCEM/article/view/18429 |
| _version_ | 1797902545342955520 |
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| author | Libor Ižvolt Peter Dobeš Michaela Holešová Deividas Navikas |
| author_facet | Libor Ižvolt Peter Dobeš Michaela Holešová Deividas Navikas |
| author_sort | Libor Ižvolt |
| collection | DOAJ |
| description |
The paper investigates whether foam glass could reduce the structural thickness of the protection layer in the construction of the railway track (saving of natural materials – crushed aggregate) and, at the same time, also provide sufficient thermal protection of the frost-susceptible subgrade surface. It also discusses whether the incorporation of foam glass would have a relevant effect on the increase of the deformation resistance of the railway track structure at the level of the sub-ballast upper surface. Following these assumptions, the paper presents the results of experimental measurements of the deformation resistance of the modified structural composition of the sub-ballast layers (with an embedded foam glass layer) and their comparison with the results determined on a structure with a standard composition of the sub-ballast layers (crushed aggregate sub-ballast layer/protective layer). Also, numerical and mathematical analysis of the influence of the built-in thermal insulation foam glass layer on the reduction of the structural thickness of the protective crushed aggregate layer in terms of the effect of climatic factors is conducted in the paper. The mathematical model, developed by the research, provides the possibility of continuous monitoring of the change in the railway track structure freezing depending on climatic characteristics.
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| first_indexed | 2024-04-10T09:19:23Z |
| format | Article |
| id | doaj.art-0f8aee05c6254e208aa565c6b1bc2ff4 |
| institution | Directory Open Access Journal |
| issn | 1392-3730 1822-3605 |
| language | English |
| last_indexed | 2024-04-10T09:19:23Z |
| publishDate | 2023-02-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Civil Engineering and Management |
| spelling | doaj.art-0f8aee05c6254e208aa565c6b1bc2ff42023-02-20T16:16:16ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052023-02-0129310.3846/jcem.2023.18429Assesment of the possibility of foam glass application in the sub-ballast layersLibor Ižvolt0Peter Dobeš1Michaela Holešová2Deividas Navikas3Department of Railway Engineering and Track Management, Univesity of Žilina, Žilina, SlovakiaDepartment of Railway Engineering and Track Management, Univesity of Žilina, Žilina, SlovakiaDepartment of Structural Mechanics and Applied Mathematics, Univesity of Žilina, Žilina, SlovakiaDepartment of Mobile Machinery and Railway Transport, Vilnius Gediminas Technical University, Vilnius, Lithuania; Department of Automobiles Transport Engineering, Vilnius Technology and Design College, Vilnius, Lithuania The paper investigates whether foam glass could reduce the structural thickness of the protection layer in the construction of the railway track (saving of natural materials – crushed aggregate) and, at the same time, also provide sufficient thermal protection of the frost-susceptible subgrade surface. It also discusses whether the incorporation of foam glass would have a relevant effect on the increase of the deformation resistance of the railway track structure at the level of the sub-ballast upper surface. Following these assumptions, the paper presents the results of experimental measurements of the deformation resistance of the modified structural composition of the sub-ballast layers (with an embedded foam glass layer) and their comparison with the results determined on a structure with a standard composition of the sub-ballast layers (crushed aggregate sub-ballast layer/protective layer). Also, numerical and mathematical analysis of the influence of the built-in thermal insulation foam glass layer on the reduction of the structural thickness of the protective crushed aggregate layer in terms of the effect of climatic factors is conducted in the paper. The mathematical model, developed by the research, provides the possibility of continuous monitoring of the change in the railway track structure freezing depending on climatic characteristics. https://jeelm.vgtu.lt/index.php/JCEM/article/view/18429railway tracksub-ballast layersthermal insulation layersfoam glassstatic load testsclimatic factors |
| spellingShingle | Libor Ižvolt Peter Dobeš Michaela Holešová Deividas Navikas Assesment of the possibility of foam glass application in the sub-ballast layers Journal of Civil Engineering and Management railway track sub-ballast layers thermal insulation layers foam glass static load tests climatic factors |
| title | Assesment of the possibility of foam glass application in the sub-ballast layers |
| title_full | Assesment of the possibility of foam glass application in the sub-ballast layers |
| title_fullStr | Assesment of the possibility of foam glass application in the sub-ballast layers |
| title_full_unstemmed | Assesment of the possibility of foam glass application in the sub-ballast layers |
| title_short | Assesment of the possibility of foam glass application in the sub-ballast layers |
| title_sort | assesment of the possibility of foam glass application in the sub ballast layers |
| topic | railway track sub-ballast layers thermal insulation layers foam glass static load tests climatic factors |
| url | https://jeelm.vgtu.lt/index.php/JCEM/article/view/18429 |
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