A study of premium glass beads for road marking materials

• Autorzy: Burghardt Tomasz E. , Pashkevich Anton , Wenzel Kevin M.

Identyfikatory

DOI

10.7409/rabdim.021.008

Warianty tytułu

PL

Badanie wysokogatunkowych szklanych mikrokulek odblaskowych do oznakowania drogowego

• Języki publikacji: EN PL

Abstrakty

EN

Road markings are a necessary safety feature on almost all roads. For appropriate performance they must be reflectorised with glass beads. To demonstrate the differences between traditional and modern thin-layer road marking solutions, four road marking systems were compared in the field. Based on measurements of retroreflectivity, influence of glass beads and paint on service life was estimated. The use of high-performance waterborne paint reflectorised with premium glass beads permitted for over sixfold extension of durability. Financial analysis demonstrated that the considerable additional expense associated with purchase of modern materials was fully offset through increased service life: even 65% savings could be realised in the long term. Subsequent analysis of the used glass beads under optical and scanning electron microscopes provided information about their surface; intact and damaged glass beads were observed. Surprisingly, damaged glass beads were found to have crater-like surface features instead of the expected scratches.

PL

Oznakowanie poziome stanowi niezbędny element bezpieczeństwa ruchu drogowego. Warunkiem jego skuteczności jest zapewnienie odblaskowości, co uzyskuje się przez powierzchniową warstwę mikrokulek szklanych. W celu wykazania różnic między oznakowaniem poziomym cienkowarstwowym wykonanym w technologii tradycyjnej a nowoczesnymi rozwiązaniami przeprowadzono porównawcze badania terenowe czterech systemów oznakowania. Na podstawie pomiarów odblaskowości stwierdzono, że zarówno rodzaj farby, jak i mikrokulek znacząco wpływają na trwałość użytkową oznakowania. Zastosowanie farby wodorozcieńczalnej z posypką mikrokulek szklanych najwyższej jakości pozwoliło na ponad sześciokrotne zwiększenie trwałości użytkowej w porównaniu do systemu tradycyjnego. Z przeprowadzonej analizy finansowej wynika, że znacząco wyższe nakłady początkowe związane z cenami nowoczesnych materiałów zwracają się całkowicie dzięki większej trwałości użytkowej; w dłuższym horyzoncie czasowym przynoszą oszczędności na poziomie nawet 65%. W przeprowadzonych następnie analizach powierzchni mikrokulek pod mikroskopem optycznym i elektronowym obserwowano zarówno mikrokulki w stanie nienaruszonym jak i uszkodzone. Zaskoczeniem był charakter uszkodzeń mikrokulek, na których zamiast oczekiwanych zarysowań zauważono ubytki w kształcie kraterów.

Słowa kluczowe

EN

glass beads; glass beads damage; retroreflectivity; road markings; service life; waterborne paint

PL

farba wodorozcieńczalna; mikrokulki szklane; odblaskowość; poziome oznakowanie drogowe; trwałość użytkowa; uszkodzenia mikrokulek szklanych

• Wydawca: Instytut Badawczy Dróg i Mostów
• Czasopismo: Roads and Bridges - Drogi i Mosty
• Rocznik: 2021
• Tom: Vol. 20, no. 2
• Strony: 125--138
• Opis fizyczny: Bibliogr. 46 poz., rys., tab.

Twórcy

autor

Burghardt Tomasz E.

• M. Swarovski GmbH, Industriestraße 10, 3300 Amstetten, Austria

autor

Pashkevich Anton

• Politechnika Krakowska, Wydzia³ In¿ynierii L¹dowej, Katedra Systemów Transportowych, ul. Warszawska 24, 31-155 Kraków

autor

Wenzel Kevin M.

• Hochschule Esslingen, Kanalstraße 33, 73728 Esslingen am Neckar, Germany, and Swarco Limburger Lackfabrik GmbH, Robert-Bosch-Straße 17, 65582 Diez, Germany

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