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The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track

The presented article concentrates on the influence of various concrete additives in the form of fibers on the mechanical parameters of concrete so as to obtain the effect of gradual changes in these parameters, which is very important in the transition zone of the railway track. Steel, polymer and...

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Autores principales: Idczak, Włodzimierz, Lewandrowski, Tomasz, Pokropski, Dominik, Rogojsz, Grzegorz, Rudnicki, Tomasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9412658/
https://www.ncbi.nlm.nih.gov/pubmed/36013861
http://dx.doi.org/10.3390/ma15165730
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author Idczak, Włodzimierz
Lewandrowski, Tomasz
Pokropski, Dominik
Rogojsz, Grzegorz
Rudnicki, Tomasz
author_facet Idczak, Włodzimierz
Lewandrowski, Tomasz
Pokropski, Dominik
Rogojsz, Grzegorz
Rudnicki, Tomasz
author_sort Idczak, Włodzimierz
collection PubMed
description The presented article concentrates on the influence of various concrete additives in the form of fibers on the mechanical parameters of concrete so as to obtain the effect of gradual changes in these parameters, which is very important in the transition zone of the railway track. Steel, polymer and glass fibers, as well as concrete without additives, were accepted for the study. The effect of additives on the consistency of the mixture, compressive strength, frost resistance and elastic modulus was studied. The research concerned concrete samples and models of elements of the ballastless railway surface, i.e., track slab and concrete block supports. The track slab model was made of concrete without additives, while the models of supports were made both without and with additives. The studies were carried out in laboratory conditions. As a result, the tested concrete samples with various additives were ranked so that they could be used as a material for elements of the railway surface in the transition zones of engineering facilities on railway roads, which is important from the point of view of reducing the threshold effect occurring in these zones. Detailed laboratory tests were presented, the results of these studies were discussed, and final conclusions were drawn regarding the technology of materials and the methodology of constructing the transition zones of the railway surface in order to avoid or at least reduce the threshold effect existing in such zones.
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spelling pubmed-94126582022-08-27 The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track Idczak, Włodzimierz Lewandrowski, Tomasz Pokropski, Dominik Rogojsz, Grzegorz Rudnicki, Tomasz Materials (Basel) Article The presented article concentrates on the influence of various concrete additives in the form of fibers on the mechanical parameters of concrete so as to obtain the effect of gradual changes in these parameters, which is very important in the transition zone of the railway track. Steel, polymer and glass fibers, as well as concrete without additives, were accepted for the study. The effect of additives on the consistency of the mixture, compressive strength, frost resistance and elastic modulus was studied. The research concerned concrete samples and models of elements of the ballastless railway surface, i.e., track slab and concrete block supports. The track slab model was made of concrete without additives, while the models of supports were made both without and with additives. The studies were carried out in laboratory conditions. As a result, the tested concrete samples with various additives were ranked so that they could be used as a material for elements of the railway surface in the transition zones of engineering facilities on railway roads, which is important from the point of view of reducing the threshold effect occurring in these zones. Detailed laboratory tests were presented, the results of these studies were discussed, and final conclusions were drawn regarding the technology of materials and the methodology of constructing the transition zones of the railway surface in order to avoid or at least reduce the threshold effect existing in such zones. MDPI 2022-08-19 /pmc/articles/PMC9412658/ /pubmed/36013861 http://dx.doi.org/10.3390/ma15165730 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Idczak, Włodzimierz
Lewandrowski, Tomasz
Pokropski, Dominik
Rogojsz, Grzegorz
Rudnicki, Tomasz
The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track
title The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track
title_full The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track
title_fullStr The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track
title_full_unstemmed The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track
title_short The Influence of the Type of Fibers on the Reduction of the Threshold Effect in the Transition Zone of a Railway Track
title_sort influence of the type of fibers on the reduction of the threshold effect in the transition zone of a railway track
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9412658/
https://www.ncbi.nlm.nih.gov/pubmed/36013861
http://dx.doi.org/10.3390/ma15165730
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