Description of Oxidized Bitumen 90/40
Oxidized Bitumen 90/40 is a semi-solid grade of pure petroleum bitumen manufactured by air-blowing through an asphalt flux. Special physical properties of its grade can be used in different applications in the construction business. Oxidized bitumen 90/40 is based on petroleum bitumen which is made by Bitumen 60/70 by very hot air. The numbers relate to the midpoint of the material’s softening point and penetration respectively.
The softening point value is the degrees Centigrade measured by the Ring and Ball method as determined by ASTM D36. The penetration value is 1/10 mm as determined by IP49 or ASTM D5.
Oxidized Asphalt is a solid or semi-black solid material and gradually liquid when heated, oxidized asphalt is the predominant content of bitumen, asphalt, molten (oils), and aromatic resins. The oxidized asphalt or blown asphalt is producing in different softening points and penetration.
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Uses of Oxidized Bitumen 90/40
Oxidized Bitumen 90/40 is a versatile material used in various industrial applications, including coating pipes, steel, and electrical apparatus to protect against corrosion, moisture, and chemicals. Its excellent adhesion and durability make it ideal for extreme conditions. In road construction, it enhances the durability and strength of asphalt, enhancing stability in heavy traffic areas. It also acts as a crack filler and sealing material, preventing water seepage and increasing road life. Oxidized Bitumen 90/40 is particularly effective in waterproofing applications, particularly for roofing and underground constructions. Its water and weather resistance makes it crucial for waterproofing membranes and damp-proof coatings for concrete and other surfaces. It is also used in the production of industrial adhesives, providing durable and flexible solutions for construction, automotive, and manufacturing applications.
Storage and Handling of Oxidized Bitumen 90/40
Blown asphalt 90/40 has 10 years validity with multi-time heating and cooling, please refer to MSDS.
Health & safety of blown asphalt 90/40
Packing
Oxidized Bitumen 90/40 is offered in a range of packaging options to suit customer needs, including:
- 20 Kg and 50 Kg Kraft Paper Bags
- 25 Kg Carton Boxes
- 150 Kg, 180 Kg, and 200 Kg Steel Drums
Among them, the most expensive is the 25 Kg molded packaging but, at the same time, one of the easiest to use. These polyamide bags are resistant to heat and can cool very quickly if they are filled with water, thus being particularly handy for transportation and storage.
Besides, 25 Kg kraft paper bags are reusable, have a special coating that prevents bitumen from sticking to the package. It is possible to transport the bags both with and without pallets, which provides great options for storage and logistics.
Specification of Blown Asphalt 90/40
| Bitumen 90/40 | Test method | Unit | Specification |
|---|---|---|---|
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 35/45 |
| Softening point °c | ASTM D36 | °C | 85/95 |
| Ductility @25 °c | ASTM D113 | Cm | 5.5min |
| 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 |
FAQs
1. What is the difference between Oxidized Bitumen 90/40 and other types of oxidized bitumen?
Compared to other types of oxidized bitumen, Oxidized Bitumen 90/40 has a high viscosity with a high softening point. Therefore, these features are excellent for tough applications, especially for road construction and industrial coating. Furthermore, this kind of bitumen is recommended for projects with more resistance that can endure higher temperatures and poor weather conditions.
2. Is Oxidized Bitumen 90/40 suitable to use in cold climates?
Blown Bitumen 90/40 works best in warm and moderate climates because of its specific properties. However, due to its structure and high resistance to temperature changes, it can also be used in cold regions, though it is not the best option for extremely low temperatures, where cracking could occur.
3. Does Blown Bitumen 90/40 have environmental certifications?
Yes, most of the well-known manufacturers of Oxidized Bitumen 90/40 do provide environmental certifications such as ISO 14001 or similar standards. These certifications mean that the product is manufactured according to environmental standards and has less harm to the environment. For an eco-friendly product, it is recommended to ask for relevant certifications from the supplier.
