Oxidized Bitumen 105/15
DESCRIPTION OF OXIDIZED BITUMEN 105/15
Oxidized Bitumen 105/15 (Blown Asphalt 150/15) is 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 105/15 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. The softening point value is the degrees Centigrade measured by the Ring and Ball method as determined by ASTM D36. The penetration value is in 1/10 mm as determined by IP49 or ASTM- D5.
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USAGE OF OXIDIZED BITUMEN 105/15
The most majority of oxidized bitumen 105/15 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 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 oxidized bitumen 105/15 is often produced direct from the vacuum distillation process, without any further modification. Current estimates put the world use of oxidized bitumen 105/15 at approximately 102 million tonnes per year and about 85% of all the bitumen produced is used in asphalt for the construction of roads and other paved areas. Typically, asphalt will contain approximately 5% by mass of bitumen, with the remaining 95% consisting of a mixture of mineral aggregates and much finer materials such as limestone filler.
BLOWING PROCESS BITUMEN 105/15
After preheating, the short residue is introduced into the blowing column just below the normal liquid level. Air is blown through the bitumen by means of an air distributor located at the bottom of the column. The air acts not only as a reactant but also serves to agitate and mix the Oxidized Bitumen 105/15, thereby increasing both the surface area and the rate of reaction. The bitumen absorbs oxygen as air ascends through the material. Steam and water are sprayed into the vapour space above the bitumen level, the former to suppress foaming and dilute the oxygen content of waste gases and the latter to cool the vapours in order to prevent after-burning and the resulting formation of coke.
APPLICATION OF BITUMEN 105/15
Oxidized Bitumen 105/15 used in the chemical, fuel, paints, lacquers, varnishes, paper-pulp-board, textile processing, road construction, pavement, crack seal and repairmen, civil works, roofing, construction industries; sealing and insulating buildings, adhesive, construction materials additive, dust-binding, insulating and impregnating agent, make rubber and plastic products. The Oxidized Bitumen 105/15 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 asphalt 105/15 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing, caulking, mastics, and damp proofing. Asphalt 105/15 is using insulation and isolation bitumen membrane sheet. The car undercoating Automobile industry is especially required for Blown Asphalt. Vehicle undercoating material is based on Bitumen. Bitumen provides excellent waterproof, dustproof, and noise proof for automobile undercoating. The oxidized asphalt 105/15 should be heated at double temperature against the softening point to support flow and viscosity. To use asphalt 105/15, surfaces must be dry, clean and after loose particles, formwork, curing products, irregularities, slurry, etc.
HANDLING AND STORAGE
The 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. The 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 Blown 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 Chemical Mine World 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.
TECHNICAL ADVANTAGE OF BLOWN BITUMEN 105/15
- Durability
- Flexibility
- Water-Resistant
- Chemical Stability
SAFETY OF USAGE AND WORK
Various pickings are available for customer’s purpose and conveniences. Various packing including Kraft bag, melt able plastic bag, drum, and bulk oxidized asphalt 105/15 from penetration grade bitumen. Oxidized Bitumen 105/15 perchance supplied in any grade and are designated by two numbers to indicate the softening point and penetration ranges. The oxidized asphalt grade 105/15 means the softening point is 105 and penetration are 15 desi millimeters is produced in compliance and conformity with ASTM standard and meets the following specification.
PACKING OF OXIDIZED BITUMEN 105/15
Oxidized Bitumen 105/15
A few types of packing is available for customers’ purpose and conveniences. Oxidized Bitumen 105/15 packed in different types of packaging including Kraft bags, meltable plastic bags, drums, and bulk. Oxidized bitumen 105/15 is a penetration-grade bitumen, which is blown by hot air in a controlled process until the desired specification is reached. Bitumen Malaysia can supply oxidized bitumen in any grade and is designated by two numbers to show the softening point and penetration ranges. The bitumen grade 105/15 means the softening point is 105 and penetration is 15 desi millimeters. They are produced in compliance and conformity with ASTM standard and meets the following specification. Various packings are available for customers’ purposes and conveniences. Oxidized Bitumen 105/15 in various packing including Kraft bag, meltable plastic bag, drum, and bulk oxidized asphalt 105/15 from penetration grade bitumen.
TECHNICAL DATA SHEET OF OXIDIZED BITUEMEN 105/15
| Bitumen 105/15 | TEST METHOD | UNIT | SPECIFICATION |
|---|---|---|---|
| Specific gravity @ 25/25 °c | ASTM D70 | Kg/cm³ | 1.05 approx |
| Penetration @ 25°c | ASTM D5 | mm/10 | 10-20 |
| Softening point °c | ASTM D36 | °C | 100-110 |
| 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 |
| Spot test | A.a.s.h.o.t102 | - | Negative |
