Bitumen 50/70
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Comprehensive Description of Bitumen 50/70
Bitumen penetration grade 50/70 is a versatile paving-grade bitumen widely used in road construction and asphalt production. Contractors rely on this grade for its consistent performance, which comes from its thermoplastic properties. It softens at high temperatures and hardens at lower ones, making it ideal for various climates and applications. This performance is further enhanced by its penetration range of 50 to 70 mm/10 at 25°C, determined through rigorous testing of penetration and softening points.
The stiffness-to-temperature relationship of bitumen 50/70 depends on the type of crude oil and the refining process. Many construction projects use this semi-hard bitumen in hot mix asphalt for bases and wearing courses. Additionally, its reliable performance makes it a foundational material for manufacturing other bituminous products.
Primary Uses of Bitumen 50/70
Engineers and contractors frequently use bitumen 50/70 in road construction and repair projects. Moreover, this grade is highly effective in producing durable hot mix asphalt for bases and wearing courses. In tropical regions, where high temperatures demand superior materials, bitumen 50/70 consistently delivers excellent results.
Applications of Penetration Grade 50/70
Penetration-grade Grade 50/70 is ideal for asphalt pavements requiring superior durability and performance. For instance, it is often applied in projects with challenging conditions that demand long-lasting results. Furthermore, this grade plays a critical role in the production of hot mix asphalt for both base layers and wearing courses.
Softening Point and Penetration Properties
Gold Bitumen produces penetration-grade 50/70 through advanced vacuum bottom processing and hot air treatment. The production process removes hydrocarbons and ensures a high-quality product. This grade features a penetration range of 50 to 70 desi-millimeters and a softening point between 52 and 58°C. Its thermoplastic behavior, similar to synthetic resin materials, allows it to soften with heat and harden when cooled. Additionally, Grade 50/70 boasts a higher viscosity compared to other grades, making it well-suited for demanding construction applications.
Quality Guarantee for Bitumen 50/70
Gold Bitumen ensures consistent quality by performing strict quality control at every stage of production. International inspectors verify both the quality and quantity of the product during the loading process. Additionally, our QC team conducts thorough batch testing before shipment. These steps guarantee compliance with ASTM and EN 12591 standards, ensuring reliability for every customer.
Technical Specifications of Penetration Grade 50/70
Property | Test Method | Unit | Specification |
---|---|---|---|
Penetration @25°C | IP 49 | mm/10 | 50-70 |
Softening Point | IP 58 | °C | 52-58 |
Kinematic Viscosity @135°C | IP 370 | mm²/s | 295 min |
Flashpoint | IP 36 | °C | 230 min |
Solubility in CS2 | IP 47 | wt% | 99 min |