Ageing tests with high temperatures of prototype vibroacoustic isolators - under ballast mats (UBMs) based on recycled materials

• Autorzy: Kraśkiewicz Cezary , Zbiciak Artur , Sabouni-Zawadzka Anna , Wasilewski Kacper

Identyfikatory

DOI

10.24425/ace.2024.149860

Warianty tytułu

PL

Badanie odporności na starzenie w wysokich temperaturach prototypowych izolatorów wibroakustycznych – mat podpodsypkowych (UBMs) na bazie materiałów z recyklingu

• Języki publikacji: EN

Abstrakty

EN

This study focuses on experimental ageing tests with high temperatures carried out on prototype under ballast mats (UBMs) according to the procedure of the European standard EN 17282, which was introduced in late 2020. Most of the analysed UBM samples are based on recycled elastomeric materials, such as styrene-butadiene rubber (SBR) granules and fibres from end-of-life car tyres and rebond polyurethane waste from polyurethane product manufacturing plants. Additionally, two variations of the mat based on mineral wool are analysed. Significant differences in the values of static and dynamic characteristics measured before and after the ageing tests are demonstrated, and permanent deformations of the recycled polyurethane-based mats are shown. Moreover, it is proved that the elastomeric mats based on recycled rubber materials (SBR granules and fibres) have high durability and are an effective solution in terms of protection against vibration and structure-borne noise from railway traffic. In addition, the authors propose criteria for assessing the results of the ageing test with high temperatures of UBMs tested according to the procedure of EN 17282.

PL

W artykule przedstawiono badania laboratoryjne odporności na starzenie w wysokich temperaturach prototypowych mat podpodsypkowych UBM, zrealizowane według procedury wprowadzonej do stosowania pod koniec 2020 r. normy europejskiej EN 17282. Niska odporność na starzenie w wysokich temperaturach, określona jako zmiana wartości statycznego i dynamicznego modułu sztywności mat UBM oraz ich masy może mieć wpływ na zmniejszenie ich skuteczności w zakresie tłumienia wibracji i hałasu wtórnego od ruchu kolejowego. Analizie poddano maty UBM na bazie materiałów elastomerowych z recyklingu (granulat i włókna gumowe SBR pochodzące ze zużytych opon samochodowych oraz poliuretan wtórnie wiązany pochodzący z odpadków z zakładów produkcji wyrobów poliuretanowych), a także – w celach porównawczych – dwie odmiany maty na bazie wełny kamiennej. Wykazano znaczące różnice wartości charakterystyk statycznych i dynamicznych względem wartości przed badaniem odporności na starzenie oraz trwałe odkształcenia w odniesieniu do mat na bazie poliuretanu z recyklingu. W przypadku mat elastomerowych na bazie gumowych materiałów recyklingowych (granulat i włókna gumowe SBR) wykazano zasadność ich stosowania biorąc pod uwagę trwałość eksploatacyjną oraz skuteczność w zakresie ochrony przed wibracjami i hałasem wtórnym pochodzących od ruchu kolejowego. Dodatkowo, na podstawie dokonanego przeglądu wymagań zagranicznych zarządców infrastruktury kolejowej oraz rekomendacji Międzynarodowego Związku Kolejowego (UIC), autorzy w artykule zaproponowali kryteria oceny wyniku badania odporności na starzenie w wysokich temperaturach w odniesieniu do mat UBM badanych według procedury nowej normy europejskiej EN 17282.

Słowa kluczowe

EN

ballasted track structure; ageing resistance; under ballast mat; laboratory testing; vibration isolation; recycled material

PL

nawierzchnia podsypkowa; nawierzchnia torowa; odporność na starzenie; mata podpodsypkowa; badanie laboratoryjne; wibroizolacja; materiał recyklingowy

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2024
• Tom: Vol. 70, nr 2
• Strony: 215--232
• Opis fizyczny: Bibliogr. 30 poz., il., tab.

Twórcy

autor

Kraśkiewicz Cezary

• Warsaw University of Technology, Faculty of Civil Engineering, Warsaw, Poland

• https://orcid.org/0000-0001-9245-6344

autor

Zbiciak Artur

• Warsaw University of Technology, Faculty of Civil Engineering, Warsaw, Poland

• https://orcid.org/0000-0001-8882-2938

autor

Sabouni-Zawadzka Anna

• Warsaw University of Technology, Faculty of Civil Engineering, Warsaw, Poland

• https://orcid.org/0000-0003-2688-8442

autor

Wasilewski Kacper

• Warsaw University of Technology, Faculty of Civil Engineering, Warsaw, Poland

• https://orcid.org/0000-0001-9138-7682

Bibliografia

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