Bitumen VG20 (IS 73:2013) – Technical Specifications

The main applications of Bitumen VG20 are primarily in road construction and waterproofing, particularly in regions with moderate temperatures. Here are its key uses:

1. Road Construction in Moderate Climates:VG20 bitumen is commonly used for paving roads in regions that experience warmer or moderate climates. Its higher viscosity allows it to perform well in environments where the temperature is higher than what VG10 can handle.
2. Surface Dressing:VG20 is ideal for surface dressing of roads. Surface dressing involves applying a layer of bitumen on the road surface, followed by stone chippings, which provides better skid resistance and protects the road from weather damage.
3. Bituminous Mixes for Roads and Highways:VG20 is used in bituminous concrete mixes for the construction of roads, highways, and airfields. These mixes are designed to be durable and resilient under traffic loads, offering longevity to the road surface.
4. Maintenance of Roads and Highways:It is also widely used for road repair and maintenance works, including pothole patching and crack sealing, especially in warmer areas where softer bitumen might degrade quickly.
5. Waterproofing and Damp-Proofing:VG20 bitumen can be applied as a primer in waterproofing applications or to create damp-proof coatings on concrete surfaces, offering excellent adhesive and sealing properties.
6. Flexible Pavements:Bitumen VG20 is used in flexible pavement construction, which allows the road to withstand heavy traffic while remaining resilient to temperature changes and loads.

Bitumen VG20 is primarily used in the construction and maintenance of roads, particularly in moderate to warm climates, and is also used in waterproofing and surface dressing applications.

Packing bitumen is an essential process to ensure its safe transportation, storage, and handling. The method of packing often depends on the type of bitumen, the transportation method, and the end-use. Here are the various methods used to pack bitumen: