Oxidized Bitumen 95/25 Description:
Oxidized Bitumen 95/25 is a semi-solid grade of pure petroleum bitumen produced through air-blowing a flux asphalt. This specific grade of oxidized bitumen exhibits unique physical properties suitable for various applications in the construction industry. It is derived from petroleum bitumen, specifically Oxidized Bitumen 60/70, through a process that involves air-blowing at high temperatures. The numbers, 95/25, indicate the midpoint values for the softening point and penetration, respectively. The softening point is determined in degrees Celsius using the Ring and Ball method as specified by ASTM D36, while the penetration value is measured in 1/10 mm according to IP49 or ASTM-D5 standards.
Production Process:
Oxidized Bitumen is an industrial bitumen that undergoes modification through the oxidation process. This process involves passing air through bitumen under controlled temperature conditions. The resulting product can vary in consistency from highly viscous to solid. Different grades of blown bitumen exist, each with specific technical advantages such as durability, flexibility, water resistance, and chemical stability.
Quality Assurance:
BITUPLUS Company ensures the quality of BITUPLUS Oxidized Bitumen 95/25 through the involvement of international inspectors who check both the quality and quantity of the bitumen during loading onto vessels. Additionally, production is closely monitored by quality control (QC) through batch test reports before shipping, ensuring compliance with ASTM standards.
Applications:
Oxidized Bitumen 95/25 finds application in various industries, including:
- Chemical industry (for producing fuels, paints, lacquers, varnishes).
- Paper-pulp-board manufacturing and textile processing.
- Road construction and pavement applications.
- Crack sealing and repair work.
- Civil engineering projects.
- Roofing and construction industries (for sealing and insulating buildings).
- Adhesives and construction materials additives.
- Dust-binding and coating applications.
- Insulating and impregnating agent.
- Production of rubber and plastic products.
- Paving applications.
- Asphalt-based paints for corrosion protection.
- Lining public works structures.
- Adhesives in electrical laminates.
- Base material for synthetic turf.
- Water-proofing applications and corrosion resistance for pipe coatings.
- Portland cement pavement.
- Hydraulic applications.
- Paint manufacturing.
- Caulking, mastics, and damp proofing.
- Insulation and isolation bitumen membrane sheets.
- Automobile industry for vehicle undercoating (provides waterproofing, dustproofing, and noise-proofing).
Application Guidelines:
To use Oxidized Bitumen 95/25, it should be heated to a temperature double that of its softening point to achieve the desired flow and viscosity. Surfaces must be dry, clean, and free from loose particles, formwork, curing products, irregularities, slurry, and similar contaminants.
Storage and Handling:
Oxidized Bitumen 95/25 has a shelf life of up to 10 years and can undergo multiple heating and cooling cycles. It is advisable to store Oxidized Bitumen 95/25 in a sheltered area, protecting it from rain and direct sunlight.
Packing:
BITUPLUS CO offers Oxidized Bitumen 95/25 in various packaging options, including Kraft bags, meltable plastic bags, drums, and bulk quantities. The product conforms to ASTM standards and is identified by two numbers indicating the softening point and penetration ranges, with 95/25 representing a softening point of 95°C and a penetration of 25 desi millimeters.
Specification of Oxidized Bitumen 95/25
| Bitumen 95/25 | Test method | Unit | Specification |
| Specific gravity @25/25 °C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°C | ASTM D5 | mm/10 | 20/30 |
| Softening point °C | ASTM D36 | °C | 90/100 |
| Loss on heating(wt) % | ASTM D6 | Wt. % | 0.2 max |
| Flashpoint °C | ASTM D92 | °C | 250 min |
| Solubility is CS2(wt) % | ASTM D4 | Wt. % | 99.5 max |
| Spot test | A.A.S.H.O.T102 | — | Negative |
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