Oxidized Asphalt 90/10 Description:
Oxidized Asphalt 90/10, also known as oxidized bitumen 90/10 or blown bitumen 90/10, is a semi-solid grade of pure petroleum bitumen produced by subjecting asphalt 60/70 to an air-blowing process using hot air and an asphalt flux. The numerical values “90/10” correspond to the midpoint of the material’s softening point and penetration, respectively. The softening point is measured in degrees Celsius using the Ring and Ball method (ASTM D36), while the penetration value is in 1/10 mm as determined by IP49 or ASTM-D5 standards.
Characteristics:
Oxidized asphalt 90/10 possesses specific physical properties that make it suitable for various applications in the construction industry.
Production Process:
This asphalt is manufactured by oxidizing asphalt 60/70 through a controlled air-blowing process, resulting in the desired softening point and penetration values.
Quality Assurance:
BITUPLUS Company ensures the quality of BITUPLUS Oxidized Asphalt 90/10 by deploying international inspectors to verify quality and quantity during loading onto vessels. Additionally, rigorous quality control (QC) is carried out through batch test reports before shipping, with the product designed to meet ASTM standards.
Applications:
Oxidized Asphalt 90/10 finds applications in a variety of industries and uses, including:
- Chemical industry (for manufacturing paints, lacquers, varnishes).
- Fuel industry.
- Paper-pulp-board manufacturing.
- Textile processing.
- Road construction and pavement.
- Civil engineering projects.
- Roofing.
- Construction materials additive.
- Dust-binding applications.
- Insulating and impregnating agent.
- Manufacturing of rubber and plastic products.
- Paving applications.
- Asphalt-based paints for corrosion protection of metals.
- Lining public works structures.
- Adhesives in electrical laminates.
- Base for synthetic turf.
- Waterproofing.
- Corrosion resistance for pipe coatings.
- Portland cement pavement.
- Hydraulic applications.
- Paint manufacturing.
- Caulking.
- Mastics.
- Damp proofing.
- Insulation and isolation bitumen membrane sheets.
- Automobile undercoating in the automotive industry.
Application Guidelines:
To use Oxidized Asphalt 90/10, it should be heated to a temperature double that of its softening point to achieve the desired flow and viscosity. Surfaces intended for application must be dry, clean, and free from loose particles, formwork, curing products, irregularities, slurry, and other contaminants.
Storage and Handling:
Oxidized Asphalt 90/10 has a shelf life of up to 10 years and can undergo multiple heating and cooling cycles.
Packing:
Various packaging options are available for customer convenience, 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 90/10 representing a softening point of 90°C and a penetration of 10 desi millimeters.
Specification of Oxidized Bitumen 90/10
| Bitumen 90/10 | Test method | Unit | Specification |
| Specific gravity @25/25 °C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°C | ASTM D5 | mm/10 | 5/15 |
| Softening point °C | ASTM D36 | °C | 85/95 |
| Ductility @25 °C | ASTM D113 | Cm | 1.5min |
| 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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