DESCRIPTION OF OXIDIZED BITUMEN 95/25
Oxidized Bitumen 95/25 is an oxidized Asphalt produced by oxidizing a selected petroleum asphalts without adding the catalyst. RAHA OIL 95/25 has high softening point, high flash point and it is highly stable during melting. Oxidized bitumen 95/25 is produced by the air-blowing of penetration grade bitumen. This is done at high temperatures, resulting in a material of a much higher penetration index. RAHA OIL Oxidized Bitumen 95/25 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The designation of the Oxidised bitumen 95/25 refers to the midpoint of the softening point acceptance criteria. Oxidized Bitumen 95/25 is a solid or semi-black solid material and gradually liquid when heated. Oxidized Bitumen grades are blown or oxidized bitumen ‘s which are produced by passing air through soft bitumen under controlled temperature conditions. This process gives the bitumen more rubbery properties than penetration or hard grade bitumens and a variety of uses in industrial applications. Oxidized Bitumen 95/25 is produced by either Continuous or Staggered Blowing Process. Heated Penetration Grade Bitumen under controlled environment is blown with air which controls the Oil Content in the Bitumen while it oxidized. The different grades for suited applications produced are designated by two numbers to indicate the mid-points of their softening point and penetration ranges. As said before, RAHA OIL Oxidized Bitumen 95/25 is based on petroleum bitumen which is made by blowing Bitumen 60/70 by very hot air. In addition, the numbers relate to the midpoint of the material’s softening point and penetration respectively. The softening point value measured by Ring and Ball method as determined by ASTM D36. Also, the penetration value is in 1/10 mm as determined by IP49 or ASTM- D5.
USES OF BLOWN BITUMEN 95/25
Oxidized Bitumen 95/25 is based on petroleum bitumen which made by BLOWING Bitumen 60-70 by so hot air. This process gives the bitumen more rubbery properties than its original formula. So they are simply harder bitumen. oxidized bitumen under controlled temperature conditions is widely used as an anti-slip layer compound in the piling industry, for manufacture of roofing felts, the roofing and waterproofing industries, for sound dampening felts also under carriage sealant in the automotive industry, electric cable joint protection, joint filling compound, sealant compound. Also used in sealing saw cuts and joints where expected movements are minimum. In addition it used in manufacturing of bituminous marine mastic for oil & gas pipeline joints. Hard bitumen is mostly used in industry, such as roof insulation, flooring, industrial mastic, pipe coating, and paints. Specs of Oxidized bitumen are categorized based on softening points and penetration rate. Different grades also for suited applications produced. In addition, it uses as raw material for Oxidized Bitumen 95-25 coating, Isolation bitumen membrane sheet, chemicals, fuel, paints, lacquers, varnishes, paper-pulp-board, textile processing, road construction, pavement, cracks seal. it also applied to repairmen, civil works, roofing, construction industries, sealing, and insulating buildings. Typical uses for bitumen 95/25 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing, caulking, mastics, and damp proofing. bitumen 95/25 is using insulation and isolation bitumen membrane sheet. Also, the Car undercoating Automobile industry is especially required for Blown Asphalt. The oxidized bitumen 95/25 products are for paving. also used in asphalt-based paints for corrosion protection of metals, in lining public works structures, adhesives in electrical laminates, and base for synthetic turf.
- Oxidized bitumen is used as sealing of expansion joints.
- Oxidized bitumen is used as repair of joints or cracks.
- Oxidized bitumen is used as fixation of parquet floors.
- Oxidized bitumen is used as adhesive to be used in thermal insulation.
- Oxidized bitumen is used as repair of unexposed cracks.
- Oxidized bitumen is used as bonding of wet briquettes
- Oxidized bitumen is used in various industries like roofing, isolation, insulation flooring, mastics, pipe coatings, electrical applications.
CHEMISTRY BLOWING PROCESS OF BITUMEN 92/25
The Bitumen blowing process can be described as a conversion process in which oxidation, dehydrogenation and polymerisation take place. Normally, it is effected with the oxygen present in air, and it is this type of process that is considered here. By subjecting the materials entering and leaving the reaction vessel to a combination of analytical methods, it is possible to draw up an oxygen balance. It has been found that all the oxygen taken up by the oxidized bitumen 95/25 can be accounted for by the formation of hydroxyl, carbonyl, acid and ester groups; no ether oxygen has been detected.
TEMPREATURES OF BITUMEN 95/25
As most bitumen grades are solid at ambient temperature, in order to enable them to be moved through the distribution system as a liquid, they must be heated to temperatures in the range of 1408c to over 2008c, depending on the grade; higher temperatures up to 2308c are applied with an inerted atmosphere for highly oxidised grades. When handled properly, can be reheated or maintained at elevated temperatures for a considerable time without adversely affecting its properties. However, mistreatment of oxidized bitumen 95/25 by overheating or by permitting the material to be exposed to conditions that promote oxidation can adversely affect the properties of the bitumen and may influence the long term performance of mixtures that contain bitumen.
APPLICATION OF BLOWN BITUMEN 95/25
Oxidised asphalt 95/25 uses in the chemical, fuel, lacquers, varnishes, paint paper-pulp-board, textile processing, road construction, pavement, civil works, roofing, construction industries; sealing and insulating buildings, adhesive, crack seal and repairmen, construction materials additive, dust-binding, insulating and impregnating agent, make rubber and plastic products. The asphalt R 95/25 products are for paving. also used in asphalt-based paints for corrosion protection of metals, in lining public works structures, adhesives in electrical laminates, base for synthetic turf; typical uses for oxidized bitumen 95/25 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing, caulking, mastics, and damp proofing. Blown bitumen R 95/25 is using insulation and isolation bitumen membrane sheet. Also, Car undercoating Automobile industry is specially required for Blown Asphalt. Vehicle undercoating material is based on Bitumen. Bitumen provides excellent waterproof, dust proof and noise proof for automobile undercoating.
Oxidized Bitumen 95/25 is a dark industrial bitumen. Petroleum residue modified by the oxidation process. In addition, Oxidized Bitumen is produced by passing air through bitumen under controlled temperature state. Its stability ranges from highly viscous to solid. Blown bitumen grade has technical advantages such as durability, flexibility, water resistant and chemical stability. There is also the different grade of blown bitumen.
BLOWN ASPHALT 95/25 PRODUCTED BENEFITS
- Quality assured manufacture.
- Conforms to ASTM standards with regards to softening point and penetration.
- Competitive and fair price.
- Prompt and on time Delivery
- Weatherproof Oxidized Bitumen packaging for flexibility of storage.
- Various Kind of Blown Bitumen packing according to Customer’s Purpose. (Meltable Bag, Kraft Bag, Carton Box, Block, Keg, Drum)
- High Monthly Capacity for producing Oxidized Bitumen.
- High Purity Oxidized Bitumen (OXIDISED BITUMEN) without Using Gilsonite and any other impurities
- Oxidized Bitumen packages wrapping can be melted in conventional boilers without the need for removal
- Blown Asphalt Carton Boxes packing have non-stick insider layer that remove easily on Btumen.
- Full Coverage and support
TECHNICAL ADVANTAGE OF OXIDIZED BITUMEN 95/25
- Durability
- Flexibility
- Water Resistant
- Chemical Stability
Compared to paving grade bitumen:
- Reduced temperature susceptibility
- Exhibits a more ‘solid’ nature at ambient temperatures
- High penetration index
RECOMMENDATIONS FOR HANDLING/ STORAGE
Heating of packaged bitumen is a critical phase in most of the final uses. Typically, the packaged material is heated and melted in boilers out on site. However, control at the heating phase is very important in terms of health and safety as well as in maintaining the quality of the product. Note must be taken of the maximum safe handling temperature of 230 C and this should not be abused. Bitumen is a poor conductor of heat, consequently, control of the heating phase is of paramount importance. The Oxidized Bitumen material should be broken up prior to placement in the boiler. This exposes a larger surface area to the heat and encourages a more even heating regime. Without the larger exposed surface area, aggressive heating at the base and sides of the boiler may well result in localized overheating, altering the characteristics of the modified bitumen and potentially causing thermal cracking of the bitumen, creating the release of low lash vapors. The flash point of the oxidized bitumen then becomes irrelevant; as these low flash vapors determine the fire risk. Melted bitumen should not be left in the boiler and reheated from cold, as there is then a high potential for localized overheating around the heating area (lack of convection means poor heat transfer) and potential development of a pressurized pocket of low flash vapors. Be aware of the placement of any temperature monitoring or control devices. As a result of the poor thermal conductivity of the bitumen, a thermometer in the bitumen some distance from the heat source could read significantly different (even hundreds of degrees) from the true temperature of the bitumen near the heat source. For Health and Safety information, please make reference to the relevant MSDS.
HEALTH & SAFETY
Workers should wear protective masks, gloves, and goggles during application. The asphalt can be removed from equipment and tools with kerosene or gasoline. Care should be taken when heating Oxidized Bitumen 95/25 to avoid over heating.
PACKING OF OXIDZIED BITUMEN 95/25
RAHA OIL is the manufacturer of Oxidized Bitumen 95/25 in various packing, including bitumen 95/25 is available in 20 & 50 kg Kraft Paper Bags / Poly Amide Bags, 25 kg Carton box and 150, 180, 200kg Steel Drums. In addition, oxidized bitumen packing also palletize, 40 bags can stack on the pallet. 20 pallet can load to the 20ft container.
TECHNICAL DATA SHEET OF OXIDIZED BITUMEN 95/25
| Bitumen 95/25 | TEST METHOD | UNIT | SPECIFICATION |
|---|---|---|---|
| Specific gravity @ 25/25 °c | ASTM D70 | Kg/cm³ | 1.05 approx |
| Penetration @ 25°c | ASTM D5 | mm/10 | 20-30 |
| Softening point °c | ASTM D36 | °C | 90-100 |
| Ductility @ 25°c | ASTM D113 | cm | 1.5 Min |
| 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 |
