Bitumen 85/100 (ASTM D946, AASHTO M20-70) – Technical Specifications

The main application of Bitumen 85/100 is in road construction, particularly for the production of asphalt concrete (hot mix asphalt). Its key use is in creating flexible pavements, where it acts as a binder that holds the aggregate (crushed stone, gravel, etc.) together. The bitumen provides the necessary adhesion and waterproofing properties, which are crucial for the durability and performance of the road surface.

1. Asphalt Paving:
   Bitumen 85/100 is used in the asphalt mix to pave roads, highways, and runways. Its flexibility helps the pavement withstand traffic loads and thermal expansion and contraction, reducing the risk of cracks.
2. Road Maintenance:
   It’s used in various road maintenance processes, such as patching, sealing cracks, and surface dressing, to extend the lifespan of existing roads.
3. Industrial Applications:
   Beyond road construction, Bitumen 85/100 can be used in waterproofing, roofing, and insulation materials, where its adhesive and protective properties are beneficial.

The specific choice of bitumen grade, like 80/100, depends on the climatic conditions and the intended use of the pavement or structure.

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: