Bitumen 85/25

Description of oxidized bitumen 85/25 for ATDM

Oxidized bitumen grade 85/25, also known as blown bitumen, undergoes a precise production process that gives it unique properties. In the bitumen reactor, a specific blend of Vacuum Bottom (VB) and Vacuum Silas (VS) feedstocks faces controlled temperatures and pressures between 200 and 300°C. During this process, the hydrogen atoms in the bitumen react with oxygen in the air. As a result, higher hydrocarbons undergo polymerization, producing a bitumen with a softening point of 85°C and a penetration value of 25 dmm. Unlike standard bitumen, this grade offers superior strength and provides outstanding adhesive and waterproofing qualities, especially once heated and applied.

Uses of oxidized bitumen grade 85/25

Oxidized bitumen 85/25 has an extensive range of uses across various industries. In the chemical and fuel industries, it serves as a critical component in the formulation of paints, lacquers, varnishes, and adhesives. Additionally, it greatly enhances paper-pulp boards, textiles, and construction materials. Its durability and strength make it particularly useful for road construction, pavement repairs, and crack sealing applications. This bitumen grade also plays important roles in civil works, roofing, building insulation, and waterproofing for pipeline coatings.

Beyond construction, oxidized bitumen grade 85/25 finds essential applications in the automobile industry, particularly in undercoating. Here, the bitumen provides a reliable shield against water, dust, and noise. Additionally, it plays a role in industrial flooring materials, acid-proof and alkali-resistant mastics, and electrical insulation applications. It is also highly valued in the production of lithium-ion batteries and effectively seals electrical junction boxes.

Application of oxidized bitumen grade 85/25

When it comes to versatility, oxidized bitumen 85/25 excels in various applications, It performs remarkably well in paving, canal linings, dam embankments, and hydro projects. In roofing, it serves as a base coating and protective membrane beneath shingles. This bitumen also provides industrial flooring materials with acid and alkali resistance, In the oil and gas industry, oxidized bitumen 85/25 effectively coats pipelines, preventing corrosion and rust. Additionally, it is a key adhesive for laminated boards.

Storage and handling of oxidized bitumen 85/25

Oxidized bitumen 85/25 maintains its effectiveness for up to ten years, even with multiple heating and cooling cycles. Always refer to the Material Safety Data Sheet (MSDS) for proper handling and storage.

Packing options for oxidized bitumen grade 85/25

ATDM offers a variety of packing options to meet different customer needs. Choices include Kraft bags, meltable plastic bags, drums, and bulk options. Each packing type ensures safe and easy handling of oxidized bitumen 85/25, produced in full compliance with ASTM standards.

Quality guarantee

To ensure the highest quality, ATDM supports oxidized bitumen 85/25 with a strict quality guarantee. International inspectors oversee each shipment, and the quality control team conducts batch testing before shipping. These steps ensure the product consistently meets ASTM/EN 13304:2009 standards.

Analysis of oxidized bitumen 85/25 specifications

Specifications of oxidized bitumen 85/25:

– Specific gravity at 25°C: approximately 1.05 (tested by ASTM D70)
– Penetration at 25°C: ranges from 20 to 30 mm/10 (tested by ASTM D5)
– Softening point: between 80°C and 90°C (tested by ASTM D36)
– Ductility at 25°C: minimum of 3 cm (tested by ASTM D113)
– Loss on heating: maximum 0.2 wt% (tested by ASTM D6)
– Flashpoint: minimum 250°C (tested by ASTM D92)
– Solubility in CS2: minimum 99.5 wt% (tested by ASTM D4)
– Spot test: negative result (tested by AASHTO T102)