ROUNDABOUTS PAVEMENT, ASPHALT MIX AND MATERIALS
Session
Civil Engineering, Infrastructure and Environment
Description
As over in the world, same in Kosovo, the roundabout intersections are becoming a regular sight. However, roundabouts are a little more complicated to construct and pave than regular intersections. The flow of traffic on roundabouts can mean different wear and tear on road surfaces, and thus it is important to plan a roundabout paving construction project carefully, use the right asphalt mixes and compact surfaces in a way that ensures longevity without major damages. In most of cases, road and other pavements are designed for vertical loadings only. On the roundabout itself, shear stress are high due to centrifugal forces, therefore at those locations may observe severe shoving, cracking and slippage. The asphalt mixes using at roundabouts should offer better resistance to horizontal shear force than those used in other conventional roadway applications. With the load of traffic on roundabouts, rutting and shoving of material can occur, so it's important to choose a mix that can handle such pressures. The design of asphalt mix should be focused on optimizing few components that affect shear resistance: characteristics of asphalt cement, gradation of aggregates, aggregate angularity, good frictional characteristics of the mix and also should have in consideration the weather conditions and temperatures of the region. Developing a type of the asphalt mix that can offer excellent shear resistance and frictional characteristics, and using proper materials, is the focus of this study.
Keywords:
Roundabouts, Shear stress, Asphalt mix, Aggregates
Proceedings Editor
Edmond Hajrizi
ISBN
978-9951-550-50-5
Location
UBT Kampus, Lipjan
Start Date
29-10-2022 12:00 AM
End Date
30-10-2022 12:00 AM
DOI
10.33107/ubt-ic.2022.215
Recommended Citation
Selimi, Bekim, "ROUNDABOUTS PAVEMENT, ASPHALT MIX AND MATERIALS" (2022). UBT International Conference. 219.
https://knowledgecenter.ubt-uni.net/conference/2022/all-events/219
ROUNDABOUTS PAVEMENT, ASPHALT MIX AND MATERIALS
UBT Kampus, Lipjan
As over in the world, same in Kosovo, the roundabout intersections are becoming a regular sight. However, roundabouts are a little more complicated to construct and pave than regular intersections. The flow of traffic on roundabouts can mean different wear and tear on road surfaces, and thus it is important to plan a roundabout paving construction project carefully, use the right asphalt mixes and compact surfaces in a way that ensures longevity without major damages. In most of cases, road and other pavements are designed for vertical loadings only. On the roundabout itself, shear stress are high due to centrifugal forces, therefore at those locations may observe severe shoving, cracking and slippage. The asphalt mixes using at roundabouts should offer better resistance to horizontal shear force than those used in other conventional roadway applications. With the load of traffic on roundabouts, rutting and shoving of material can occur, so it's important to choose a mix that can handle such pressures. The design of asphalt mix should be focused on optimizing few components that affect shear resistance: characteristics of asphalt cement, gradation of aggregates, aggregate angularity, good frictional characteristics of the mix and also should have in consideration the weather conditions and temperatures of the region. Developing a type of the asphalt mix that can offer excellent shear resistance and frictional characteristics, and using proper materials, is the focus of this study.