Bitumen Manufacturer ; Global Bitumen Supply ; Bitumen Price Per TonAlps Bitumen 60-70 is one of the most widely used penetration-grade Alps bitumen products in the global road construction industry . As a fundamental material for infrastructure development, this grade has earned its reputation as a reliable and versatile binder for alpsasphalt pavements worldwide.
The designation “60/70” refers to the penetration value of the bitumen, measured under standard test conditions (at 25°C with a 100g needle applied for 5 seconds). A penetration value between 60 and 70 (measured in 0.1 mm units) indicates that this grade offers a balanced consistency—neither too hard nor too soft—making it particularly suitable for use in temperate climates and areas with moderate traffic conditions .
Key Properties and Specifications
Alps Bitumen 60-70 is characterized by its thermoplastic behavior: it softens at higher temperatures and hardens when cooled . This unique temperature-viscosity relationship is crucial for determining its performance in terms of adhesion, rheology, and durability . The following specifications, based on ASTM standards, define the quality parameters for this grade:
| Property | Test Method | Unit | Specification Range |
| Penetration at 25°C | ASTM D5 | 0.1 mm | 60 – 70 |
| Softening Point | ASTM D36 | °C | 45 – 55 (typically 49-56) |
| Ductility at 25°C | ASTM D113 | cm | ≥ 100 |
| Flash Point (min) | ASTM D92 | °C | ≥ 250 |
| Solubility in Trichloroethylene (min) | ASTM D2042 | % (m/m) | ≥ 99.0 |
| Loss on Heating (max) | ASTM D1754 | % (m/m) | ≤ 1.0 |
| Retained Penetration after TFOT (min) | ASTM D5 | % | ≥ 52 |
| Ductility after TFOT (min) | ASTM D113 | cm | ≥ 50 |
Specific Gravity: 1.01 – 1.06 g/cm³ at 25°C
Applications
Alps Bitumen 60-70 is predominantly used in:
- Road Construction and Paving: As the primary binder in hot mix asphalt (HMA) for base courses and wearing courses, particularly suitable for roads carrying commercial and heavy traffic .
- Spray and Chip Applications: For surface dressing and sealing applications where a durable waterproofing layer is required .
- Hot Bituminous Mixtures: With recommended mixing, working, and compaction temperatures ranging from 145°C to 160°C .
Production and Quality Assurance
Penetration-grade Alps Bitumen 60-70is produced through the fractional distillation of crude oil, specifically from vacuum residue (short residue) feedstock . Leading manufacturers, such as ExxonMobil, produce this grade using carefully selected crude oils through controlled refining processes, ensuring compliance with stringent quality management systems . Regular testing according to ASTM or EN standards guarantees consistent product quality for every delivery .
Global Relevance
From the Middle East to Asia and Europe, Alps Bitumen 60-70 remains a trusted choice for infrastructure projects, valued for its proven performance, balanced properties, and adaptability to various climatic conditions. For more information please contact us.
