Session

Civil Engineering, Infrastructure and Environment

Description

Asphalt pavements constructed in warmer climates are more prone to rutting, whereas pavements in colder climates are more susceptible to cracking. Pavement mixtures should be designed not only to handle the high stresses exerted by wheel loads but also to withstand thermal stresses caused by extreme weather conditions. For heavy-duty pavements, it is crucial that both coarse and fine aggregate particles meet quality characteristics related to shape, texture, durability, and absorption. The selection of the asphalt binder for mixture design is equally important. The choice of high and low performance grades of asphalt binder primarily depends on the project’s location. For example, in Kosovo, temperatures vary significantly across seasons, requiring paved roads to withstand these fluctuations. Therefore, the use of additives and modifiers is essential to adjust the properties of the asphalt binder. Particularly for heavy-duty pavements, a modified binder should be used to increase mixture stiffness at high temperatures to resist permanent deformation, while also maintaining resistance to cracking at low temperatures. This paper presents the sensitivity of asphalt pavements to extreme weather conditions, focusing on the case of Kosovo.

Keywords:

Asphalt Pavement, Weather, Mixtures, Rutting, Cracking.

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-982-15-3

Location

UBT Kampus, Lipjan

Start Date

25-10-2024 9:00 AM

End Date

27-10-2024 6:00 PM

DOI

10.33107/ubt-ic.2024.310

Included in

Engineering Commons

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Oct 25th, 9:00 AM Oct 27th, 6:00 PM

Sensitivity of Asphalt Pavements to Extreme Weather Conditions

UBT Kampus, Lipjan

Asphalt pavements constructed in warmer climates are more prone to rutting, whereas pavements in colder climates are more susceptible to cracking. Pavement mixtures should be designed not only to handle the high stresses exerted by wheel loads but also to withstand thermal stresses caused by extreme weather conditions. For heavy-duty pavements, it is crucial that both coarse and fine aggregate particles meet quality characteristics related to shape, texture, durability, and absorption. The selection of the asphalt binder for mixture design is equally important. The choice of high and low performance grades of asphalt binder primarily depends on the project’s location. For example, in Kosovo, temperatures vary significantly across seasons, requiring paved roads to withstand these fluctuations. Therefore, the use of additives and modifiers is essential to adjust the properties of the asphalt binder. Particularly for heavy-duty pavements, a modified binder should be used to increase mixture stiffness at high temperatures to resist permanent deformation, while also maintaining resistance to cracking at low temperatures. This paper presents the sensitivity of asphalt pavements to extreme weather conditions, focusing on the case of Kosovo.