- Tytuł:
- Evaluation of the effect of various surficial pollutants and environmental condition on surface friction performance of road pavement
- Autorzy:
-
Khabiri, Mohammad Mehdi
Afkhamy-Meybodi, Pooya
Montazeri, Ali Mohammad - Powiązania:
- https://bibliotekanauki.pl/articles/2091219.pdf
- Data publikacji:
- 2021
- Wydawca:
- Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
- Tematy:
-
road safety
skid resistance
pollutant
British pendulum tester
decision tree
bezpieczeństwo drogowe
odporność na poślizg
zanieczyszczenia
brytyjski tester wahadłowy
drzewo decyzyjne - Opis:
- Skip resistance of asphalt is an important parameter that can influence the safety of drivers on roads. Although there is a linear relationship between slipping on road surfaces and accidents, the impacts of pollutants for decreasing friction of roads is clear to researchers. Moisture and temperature influence friction and safety. In this research in SMA samples, three different gradations with the maximum nominal sizes of 19, 12.5 and 9.5, based on international standards were used. For polluting the surface, five materials that are found on roads were used, including fine-grained soil, sand, oil, soot and rubber powder. To measure the skip resistance, the British pendulum tester was used and for analysing macro-texture, the sand patch method was used. The results of this research showed that by increasing the maximum nominal size of aggregates, the depth of macro-texture in surfaces are grown and this is due to the decrease of fine aggregates in larger gradations. Because of the higher flexibility of pure bitumen, the applied compression pressure on rigid aggregates can cause indentations in the substrate and result in declining the roughness height of aggregates in the mixed surface. This leads to declining the hysteresis part of friction by increasing temperature.
- Źródło:
-
Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 112; 99--111
0209-3324
2450-1549 - Pojawia się w:
- Zeszyty Naukowe. Transport / Politechnika Śląska
- Dostawca treści:
- Biblioteka Nauki
Artykuł