OXIDIZED BITUMEN 105/35
Oxidized Bitumen 105/35 manufactured by air-blowing through an asphalt flux. Special physical properties of its grade can be used in different applications in the construction, roads and water proofing. Oxidized Bitumen 105/35 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The numbers relate to the midpoint of the material’s softening point and penetration respectively. Blown Asphalt 105/35 is a good grade of oxidized asphalt to use as bonding compounds as hot melt adhesive at an application rate of approximately 1 Kg/m3 to bond the preformed sheets together and to structure which is made by Bitumen 60/70 by hot air. Blown bitumen 105/35 is a semi-solid oxidized 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 Asphalt 105/35 is produced by either a Continuous or Staggered Blowing Process. Heated Penetration Grade Bitumen under a 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.
APPLICATION OF BLOWN ASPHALT 105/35
Oxidized Grade Bitumen shall be broken up into small pieces and heated slowly to the application temperature of 220ºC to 230ºC. Oxidised Bitumen should be heated double temperature against the softening point to be able to have flow and viscosity. Blown asphalt also is the aesthetic adhesive substrate for asphalt membranes. In addition, metal and concrete protective coating under atmospheric conditions. Oxidized Bitumen 105-35 is used for coating of pipelines. Also impregnated of the coating of papers and boards. Bonding agent for tiles and mastic also bonding agent for cork plates and adhesive for roofing felts. Furthermore, blown bitumen is adhesive for laminated boards for protection for electrical wires. Oxidized Grade Bitumen shall be broken up into small pieces and heated slowly to the application temperature of 220ºC to 230ºC. Oxidized Bitumen should be heated at double temperature against the softening point to be able to have flow and viscosity. Blown asphalt also is the aesthetic adhesive substrate for asphalt membranes. In addition, metal and concrete protective coating under atmospheric conditions. Oxidized Bitumen 105/35 is used for coating pipelines. Also impregnated of the coating of papers and boards. Bonding agent for tiles and mastic also bonding agent for cork plates and adhesive for roofing felts. Furthermore, Blown bitumen is adhesive for laminated boards for protection from electrical wires. Oxidized Bitumen 105/35 used in the chemical, fuel, lacquers, varnishes, paper-pulp-board, textile processing, road construction, pavement, paint, crack seal and repairmen, civil works, roofing, construction business; sealing and insulating buildings, adhesive, construction materials additive, dust-binding, insulating and impregnating agent, make rubber and plastic products. The bitumen 105/35 products are for paving. also used in asphalt-based paints for corrosion protection of metals, in lining public works structures, adhesives in electrical laminates, the base for synthetic turf; typical uses for bitumen 105/35 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing. Blown bitumen 105/35 is using insulation and isolation bitumen membrane sheet. Car undercoating Automobile industry is especially required for blown bitumen. Vehicle undercoating material is based on Bitumen. Bitumen provides excellent waterproof, dustproof, and noise proof for automobile undercoating. Blown Asphalt 105/35 should be heated at double temperature against the softening point to be able to have flow and viscosity. To use blown bitumen 105/35, surfaces must be dry, clean, and free of loose particles, formwork, curing products, irregularities, slurry, etc.
TECHNICAL ADVANTAGES OF BLOWN BITUMEN 105/35
- Durability
- Flexibility
- Water Resistant
- Chemical Stability
USAGE OF BITUMEN 105/35
The most majority of bitumen 105/35 used in asphalt for road construction is conventional bitumen; that is why it is often known as paving grade. The term ‘pen grade’ is short for penetration grade and reflects the fact that this type of bitumen 105/35 product is often classified (in Europe and parts of Asia) using the penetration test. The term straight run refers to the fact that this type of bitumen is often produced direct from the vacuum distillation process, without any further modification. Current estimates put the world use of bitumen at approximately 102 million tonnes per year (Eurobitume and the Asphalt Institute, 2011), and about 85% of all the bitumen produced is used in asphalt for the construction of roads and other paved areas.
SOME OF THE MOST FAMOUS APPLICATION OF BLOWN ASPHALT 105/35
- Oxidized Grade Bitumen shall be broken up into small pieces and heated slowly to the application temperature of 220ºC to 230ºC.
- Blown asphalt also is the aesthetic adhesive substrate for asphalt membranes. In addition, metal and concrete protective coating under atmospheric conditions.
- Oxidized Bitumen 105/35 is used for coating of pipelines. Also impregnated of the coating of papers and boards.
- Bonding agent for tiles and mastic also bonding agent for cork plates and adhesive for roofing felts. Furthermore, Blown bitumen is adhesive for laminated boards for protection for electrical wires.
- Hard asphalt grades also suitable for sealing saw cuts and joints where there is expected to be the minimum amount of moving in the joint. Their wide temperature range prevents bleeding in high temperature uses.
- Oxidized asphalt can also be used in industrial usages like roofing, flooring, mastics, pipe coatings, electrical roles.
OXIDATION PROCESS OF BLOWN ASPHALT 105/35
Often by the correct selection of the crude oil feed and operating conditions, oxidized bitumen 105/35 complying with a particular specification can be manufactured directly from the distillation process. If required, the physical properties of the short residue can be further modified by ‘air blowing’. This is an oxidation process that involves passing air through the short residue, either on a batch or a continuous basis, with the short residue raised to a temperature between 240 and 3208c. The main effect of blowing is that it converts some of the relatively low molecular weight ‘maltenes’ into relatively higher molecular weight ‘asphaltenes’. The result is a reduction in the penetration of the bitumen with a comparatively greater increase in the softening point, which has the effect of improving the lower temperature susceptibility of the air-blown bitumen.
STORAGE AND HANDLING
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 OF OXIDIZED ASPHALT 105/35
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 Asphalt 105/35 to avoid overheating.
PACKING OF OXIDIZED ASPHALT 105/35
Oxidized Asphalt 105/35 in various packing, including bitumen 105/35 is available in 20 & 50 kg Kraft Paper Bags / Poly Amide Bags, 25 kg Carton box & 150, 180, 200 Kg Steel Drums. In addition, oxidized bitumen packing also palletize, 40 bags can stack on the pallet. 20 pallets can load to the 20ft container.
TECHNICAL DATA SHEET OF OXIDIZED ASPHALT 105/35
Bitumen 105/35 | TEST METHOD | UNIT | SPECIFICATION |
---|---|---|---|
Specific gravity @ 25/25 °c | ASTM D70 | Kg/cm³ | 1.05 approx |
Penetration @ 25°c | ASTM D5 | mm/10 | 30-40 |
Softening point °c | ASTM D36 | °C | 100-110 |
Ductility @ 25°c | ASTM D113 | cm | 0.2 Max |
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 |