Rapid Curing Cutback Bitumen
Rapid Curing Cutback Bitumen Description
Rapid curing cutback Bitumen cement is a combination of light diluents of high volatility, generally in the gasoline or naphtha boiling point range (RC-70, 250, 800, 3000), and asphalt cement.
Cut-back asphalts is defined as the bitumen whose viscosity value will be greatly reduced by the addition of volatile diluents (high viscosity). It mainly depends upon the diluents used. Generally, three types of cutbacks are used as follows, 1) rapid curing, 2) medium curing and 3) slow curing.
Rapid curing cutback asphalt combinations are prepared starting from the lighter diluents, and even from the fluid of higher viscosity. The grades used for rapid curing cutback bitumen are RC-70, RC-250, RC-800 and RC-3000. Here, the value given by numbers 70, 250, 800, and 3,000 represents the kinematic viscosity of the bitumen given in centistokes. The solvent concentration of rapid curing asphalt is 15-45% of the volume of asphalt cement used.
Different degrees of fluidity exists for each case and it depends on the proportion of the solvent of asphalt cement. In a minor degree cutback, liquidity may get affected by the hardness of base asphalt from which the cutback is made. It is used for the prime coats.
It is used in the pavement design process. It reacts quickly for the spray applications of bond and tack coats. It is helpful to seal the aggregate chips and sand seals. Rapid curing asphalts are mainly used for surface treatment.
Cut back asphalt RC 800 is useful for waterproofing surfaces and plug capillary voids. Grade RC250 acts as a seal coat in roadway pavements.
Mainly two tests are conducted on cut-back asphalt and are given as 1) residue and 2) cut back test. The testing of residue focusses on examination of penetration, ductility, and solubility. The testing of cutback bitumen includes the distillation, viscosity and flash point tests.
The degree of liquidity developed in each case depends principally on the proportion of solvent to asphalt cement. To a minor degree, the liquidity of the cutback may be affected by the hardness of the base asphalt from which the cutback is made. The degree of fluidity results in several grades of cutback asphalt—some quite fluid at ordinary temperatures and others somewhat more viscous. The more viscous grades may require a small amount of heating to make them fluid enough for construction operations.
Cutback Bitumen Rapid Curing Applications
Rapid Curing Cutback Bitumen is made by reducing the viscosity of and ordinary bitumen by adding mostly petroleum type solvent. Cutback Bitumen are used because their viscosity is lower than that of neat asphalt and can thus be used in low-temperature applications.
The rapid-setting grades are designed to react quickly primarily for spray applications, such as bond/tack coats, aggregate chips seals, sand seals and similar surface treatments.
Rapid curing Cutback bitumen are typically used as prime coats and tack coats. Generally, Cutback Bitumen are divided into three groups depending on their volatility of the solvent added
After a RC cutback is applied the solvent evaporates away and only the Bitumen is left. A rapid curing cutback bitumen is said to cure as the petroleum solvent evaporates.
RC Cutback Bitumen Packing
Bulk as IBC Tank, Flexi Tank
Reconditioned steel drums 220 lit., Net Weight: 191 ± 3 Kg
New steel drums 220 lit., Net Weight: 191 ± 3 Kg
RC Cutback Bitumen Safety
Refer to Safety Data sheets before use.
Transport, use and store at the lowest temperature possible.
Eliminate all potential ignition sources during application.
Avoid breathing vapors. Avoid contact with skin.
Always wear appropriate PPE including heat protection when used hot.
DO NOT allow product or washings to enter stormwater or sewer systems.
Bitumen Number 40
Bitumen Number 40 Description
Bitumen 40 is a type of hard grade building asphalt with penetration starting from #40 that is why it is famous asphalt number 40. Bitumen Number 40 is available in bag and drum also the bulk tanker. This grade of asphalt building material is mostly using in the eastern Asia market especially Taiwan and China also the Philippine and Indonesia. Bitumen grade 40 is the most consumable hard asphalt which is a semi-solid grade of pure petroleum bitumen categorized in polycyclic aromatic hydrocarbons is normally used for different purposes in the construction business.
Blown Asphalt No. 40 Applications
1. For underground moisture, waterproofing works
2. For nuclear power engineering, pipeline engineering, bottom anticorrosion, asphalt production of the production
3. For waterproofing membrane, moisture-proof paper production, etc.
4. For Anti-corrosion paint and waterproof production
5. Used for road and bridge caulking use
Blown Asphalt No. 40 Specs
| Technical indicators | 10 |
| Penetration (25 ° C, 100 g, 5 s) / (0.1 mm) | 10-26 |
| The ductility (25 ° C, 5 cm / min) / cm is not less than | 1.5 |
| Softening point (ball method) / ℃ not less than | 95 |
| Solubility (trichloroethylene) /% is not less than | 99.5 |
| Evaporation loss (163 ° C, 5 h) /% no more than | 1 |
| After evaporation, the penetration ratio (25 ℃) /% is not less than | 65 |
| Flashpoint (open cup) / ℃ not less than | 230 |
| Brittle / ℃ | report |
Bitumen No.40 Packing
Bitumen Number 40 in various packing including kraft bag, meltable plastic bag, drum, and bulk, it is made by hot air in a controlled process until the desired specification is reached. Bitumen Number 40 can be supplied in volume quantity as well. Bitumen #40 means the softening point is 115°c and penetration is 15 desi millimeter is produced in compliance and conformity to ASTM standard and meets the mentioned specification.
Bitumen Number 30
Bitumen Number 30 Description
Bitumen30 is a type of hard grade building asphalt with penetration starting from #30 that is why it is famous asphaltum number 30. Bitumen Number 30 is available in bag and drum also the bulk tanker. This grade of asphalt building material is mostly using in the eastern Asia market especially Taiwan and China also the Philippine and Indonesia. Bitumen grade 30 is the most consumable hard asphalt which is a semi-solid grade of pure petroleum bitumen categorized in polycyclic aromatic hydrocarbons is normally used for different purposes in the construction business.
Blown Asphalt N0. 30 Applications
1. For underground moisture, waterproofing works
2. For nuclear power engineering, pipeline engineering, bottom anticorrosion, asphalt production of the production
3. For waterproofing membrane, moisture-proof paper production, etc.
4. For Anti-corrosion paint and waterproof production
5. Used for road and bridge caulking use
Blown Asphalt No. 30 Specs
| Technical indicators | 10 |
| Penetration (25 ° C, 100 g, 5 s) / (0.1 mm) | 10-26 |
| The ductility (25 ° C, 5 cm / min) / cm is not less than | 1.5 |
| Softening point (ball method) / ℃ not less than | 95 |
| Solubility (trichloroethylene) /% is not less than | 99.5 |
| Evaporation loss (163 ° C, 5 h) /% no more than | 1 |
| After evaporation, the penetration ratio (25 ℃) /% is not less than | 65 |
| Flashpoint (open cup) / ℃ not less than | 230 |
| Brittle / ℃ | report |
Bitumen No.30 Packing
Bitumen Number 30 in various packing including kraft bag, meltable plastic bag, drum, and bulk, it is made by hot air in a controlled process until the desired specification is reached. bitumen Number 30 can be supplied in volume quantity as well. Bitumen #30 means the softening point is 115°c and penetration is 15 desi millimeter is produced in compliance and conformity to Astm standard and meets the mentioned specification.
Bitumen Number 10
Bitumen Number 10 Description
Bitumen 10 is a type of hard grade building asphalt with penetration starting from #10 that is why it is famous asphaltum number 10. Bitumen Number 10 is available in bag and drum also the bulk tanker. This grade of asphalt building material is mostly using in the eastern Asia market especially Taiwan and China also the Philippine and Indonesia. Bitumen grade 10 is the most consumable hard asphalt which is a semi-solid grade of pure petroleum bitumen categorized in polycyclic aromatic hydrocarbons is normally used for different purposes in the construction business.
Blown Asphalt N0. 10 Applications
1. For underground moisture, waterproofing works
2. For nuclear power engineering, pipeline engineering, bottom anticorrosion, asphalt production of the production
3. For waterproofing membrane, moisture-proof paper production, etc.
4. For Anti-corrosion paint and waterproof production
5. Used for road and bridge caulking use
Blown Asphalt No. 10 Specs
| Technical indicators | 10 |
| Penetration (25 ° C, 100 g, 5 s) / (0.1 mm) | 10-26 |
| The ductility (25 ° C, 5 cm / min) / cm is not less than | 1.5 |
| Softening point (ball method) / ℃ not less than | 95 |
| Solubility (trichloroethylene) /% is not less than | 99.5 |
| Evaporation loss (163 ° C, 5 h) /% no more than | 1 |
| After evaporation, the penetration ratio (25 ℃) /% is not less than | 65 |
| Flashpoint (open cup) / ℃ not less than | 230 |
| Brittle / ℃ | report |
Bitumen No.10 Packing
Bitumen Number 10 in various packing including kraft bag, meltable plastic bag, drum, and bulk, it is made by hot air in a controlled process until the desired specification is reached. bitumen Number 10 can be supplied in volume quantity as well. Bitumen #10 means the softening point is 115°c and penetration is 15 desi millimeter is produced in compliance and conformity to Astm standard and meets the mentioned specification.
Oxidized Bitumen 75/25
Oxidized Bitumen 75/25 Description
Oxidized Bitumen 75/25 is an oxidized Bitumen produced by oxidizing a selected petroleum asphalts without adding the catalyst. Bitumen 75/25 has a high softening point, high flash point and it is highly stable during melting. This kind of Blown Asphalt is mostly using in the Mediterranean and especially the morocco market.
Blown Asphalt 75/25 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.
Bitumen 75/25 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The designation of the Oxidised bitumen 75/25 refers to the midpoint of the softening point acceptance criteria.
Blown Asphalt 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.
Bitumen 75/25 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, Bitumen 75/25 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 the 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.
Oxidized Bitumen 75/25 Applications
Blown Asphalt 75/25 grades 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 bitumen and enables the product to serve a variety of uses in industrial applications. These grades are 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 applications. They can also be used for industrial applications such as pipe coating, roofing, waterproofing, flooring, mastics, sound damping, carpet backing, adhesive and electrical applications. Hard bitumen under controlled temperature conditions is widely used as an anti-slip layer compound in the piling industry, for the manufacture of roofing felts, the roofing and waterproofing industries, for sound dampening felts and undercarriage sealant in the automotive industry, electric cable joint protection, joint filling compound, sealant compound, and many others. Also used in sealing saw cuts and joints where expected movements are minimum.
Technical Advantages of Blown Asphalt 75/25
- 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
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.
A 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 flashpoint 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 Blown Asphalt 75/25 to avoid overheating
Oxidized Bitumen 75/25 is a dark industrial bitumen. Petroleum residue modified by the oxidation process. In addition, Blown Asphalt is produced by passing air through bitumen under a controlled temperature state. Its stability ranges from highly viscous to solid. Blown Asphalt grade has technical advantages such as durability, flexibility, water-resistant and chemical stability. There is also a different grade of blown bitumen.
Blown Grade Asphalt shall be broken up into small pieces and heated slowly to the application temperature of 220ºC to 230ºC.
Packing of Oxidized Bitumen 75/25
Oxidized Bitumen 75/25 in various packing, including bitumen 75/25 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 pallets can load to the 20ft container.
Technical Data Sheet of Blown Asphalt 75/25
| Bitumen 75/25 | Test method | Unit | Specification |
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 30/40 |
| Softening point °c | ASTM D36 | °C | 70/80 |
| 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.T.O 102 | — | Negative |
Oxidized Bitumen 75/35
Oxidized Bitumen 75/35 Description
Blown Asphalt 75/35 is an oxidized Bitumen produced by oxidizing a selected petroleum asphalts without adding the catalyst. Bitumen 75/35 has a high softening point, high flash point and it is highly stable during melting. This kind of Blown Asphalt is mostly using in the Mediterranean and especially the morocco market.
Blown Asphalt 75/35 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.
Bitumen 75/35 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The designation of the Oxidised bitumen 75/35 refers to the midpoint of the softening point acceptance criteria.
Blown Asphalt 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.
Bitumen 75/35 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, Bitumen 75/35 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 the 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.
Oxidized Bitumen 75/35 Applications
Blown Asphalt 75/35 grades 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 bitumen and enables the product to serve a variety of uses in industrial applications. These grades are 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 applications. They can also be used for industrial applications such as pipe coating, roofing, waterproofing, flooring, mastics, sound damping, carpet backing, adhesive and electrical applications. Hard bitumen under controlled temperature conditions is widely used as an anti-slip layer compound in the piling industry, for the manufacture of roofing felts, the roofing and waterproofing industries, for sound dampening felts and undercarriage sealant in the automotive industry, electric cable joint protection, joint filling compound, sealant compound, and many others. Also used in sealing saw cuts and joints where expected movements are minimum.
Technical Advantages of Blown Asphalt 75/35
- 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
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.
A 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 flashpoint 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 Blown Asphalt 75/35 to avoid overheating
Oxidized Bitumen 75/35 is a dark industrial bitumen. Petroleum residue modified by the oxidation process. In addition, Blown Asphalt is produced by passing air through bitumen under a controlled temperature state. Its stability ranges from highly viscous to solid. Blown Asphalt grade has technical advantages such as durability, flexibility, water-resistant and chemical stability. There is also a different grade of blown bitumen.
Blown Grade Asphalt shall be broken up into small pieces and heated slowly to the application temperature of 220ºC to 230ºC.
Packing of Oxidized Bitumen 75/35
Blown Asphalt 75/35 in various packing, including bitumen 75/35 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 pallets can load to the 20ft container.
Technical Data Sheet of Blown Asphalt 75/35
| Bitumen 75/35 | Test method | Unit | Specification |
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 30/40 |
| Softening point °c | ASTM D36 | °C | 70/80 |
| 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.T.O 102 | — | Negative |
Oxidized Bitumen 85/25
Oxidized Bitumen 85/25 Description
Oxidized Bitumen 85/25 or Oxidized Asphalt 85/25 is produced by blowing hot air into the penetration bitumen. This action makes the bitumen more rubbery than its original formula and it becomes harder bitumen. This bitumen recovery the weight loss under heating. Due to low thermal sensitivity, the softening point is much higher than regular bitumen and the penetration index (PI) is higher than road construction bitumen (8>PI>2) due to the letter has a gel-like structure because of asphalt accumulation.
Oxidized Bitumen 85/25 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. Bitumen 85/25 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The designation of the Oxidized Bitumen 85/25 refers to the midpoint of the softening point acceptance criteria.
Bitumen 85/25 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, Blown Asphalt 85-25 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 the 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.
Oxidized Bitumen 85/25 Applications
Oxidized Bitumen 85/25 is a solid or semi-black solid material and gradually liquid when heated. Oxidized Bitumen grades are blown or oxidized Asphalt‘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 85/25 is widely used as an anti-slip layer compound in the piling industry, for the manufacture of roofing felts, the roofing and waterproofing industries, for sound dampening felts and undercarriage sealant in the automotive industry, electric cable joint protection, joint filling compound, carpet-backing, corrosion protection, acoustic panels, chemical, fuel, Manufacture of paints, sealant compound, and many others. Also used in sealing saw cuts and joints where expected movements are minimum. It is also used in the manufacturing of bituminous marine mastic for the oil & gas pipeline joints. Further, Oxidized Bitumen is used in the manufacture of bituminous marine mastic, which is required for the oil and gas pipeline joints.
- Oxidized bitumen is used as a sealing of expansion joints.
- Oxidized bitumen is used as a repair of joints or cracks.
- Oxidized bitumen is used as a fixation of parquet floors.
- Oxidized bitumen is used as an adhesive to be used in thermal insulation.
- Oxidized bitumen is used as a 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.
Technical Advantages of Oxidized Bitumen 85/25
- 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
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.
A 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 flashpoint 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.
Bitumen 85/25 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.
The Oxidized Bitumen 85/25 should be heated double temperature against the softening point to be able to have flow and viscosity.
Surfaces must be dry, clean, and free of loose particles, formwork, curing products, irregularities, slurry, etc.
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 85/25 to avoid overheating. For Health and Safety information, please make reference to the relevant MSDS.
Packing of Blown Asphalt 85/25
Oxidized Bitumen 85/25 in various packing, including bitumen 85/25 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 pallets can load to the 20ft container.
Technical Data Sheet of Blown Asphalt 85/25
| Bitumen 85/25 | Test method | Unit | Specification |
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 20/30 |
| Softening point °c | ASTM D36 | °C | 80/90 |
| Ductility @25 °c | ASTM D113 | Cm | 3 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.T 102 | — | Negative |
Oxidized Bitumen 85/35
Oxidized Bitumen 85/35 Description
Oxidized Bitumen 85/35 or Oxidized Bitumen is produced by blowing hot air into the penetration bitumen. This action makes the bitumen more rubbery than its original formula and it becomes harder bitumen. This bitumen recovery the weight loss under heating. Due to low thermal sensitivity, the softening point is much higher than regular bitumen and the penetration index (PI) is higher than road construction bitumen (8>PI>2) due to the letter has a gel-like structure because of asphalt accumulation.
Oxidized Bitumen 85/35 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. Bitumen 85/35 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The designation of the Blown Asphalt 85/35 refers to the midpoint of the softening point acceptance criteria.
Bitumen 85/35 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, Oxidized Bitumen 85-35 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 the 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.
Oxidized Bitumen 85/35 Applications
Oxidized Bitumen 85/35 is a solid or semi-black solid material and gradually liquid when heated. Oxidized Bitumen grades are blown or oxidized Asphalt‘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.
This bitumen is mostly used in industry, such as roof insulation, flooring, industrial mastic, pipe coating, and paints. Specification of Blown Asphalt is categorized based on softening points and penetration rates. Also, Blown Asphalt 85/35 using as raw material for bitumen coat, roofing, insulation, and isolation bitumen membrane sheet.
Technical Advantages of Blown Asphalt 85/35
- 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
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.
A 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 Asphalt 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 RAHA modified bitumen, and potentially causing thermal cracking of the bitumen, creating the release of low lash vapors. The flashpoint of the blown asphalt 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.
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 Blown Asphalt 85/35 to avoid overheating. For Health and Safety information, please make reference to the relevant MSDS.
The Blown Asphalt 85/35 should be heated double temperature against the softening point to be able to have flow and viscosity.
Packing of Oxidized Bitumen 85/35
RAHA GROUP is the manufacturer of Blown Asphalt 85/35 in various packing, including bitumen 85/35 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 Blown Asphalt 85/35
| Bitumen 85/35 | Test method | Unit | Specification |
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 30/40 |
| Softening point °c | ASTM D36 | °C | 80/90 |
| Ductility @25 °c | ASTM D113 | Cm | 1.5min |
| Loss on heating(wt) % | ASTM D6 | Wt. % | 0.2 max |
| Flash point °c | ASTM D92 | °C | 250 min |
| Solubility is CS2(wt) % | ASTM D4 | Wt. % | 99.5 max |
| Spot test | A.A.S.H.T.O 102 | — | Negative |
Oxidized Bitumen 85/40
Oxidized Bitumen 85/40 Description
Oxidized Bitumen 85/40 or Blown bitumen is produced by blowing hot air into the penetration bitumen. This action makes the bitumen more rubbery than its original formula and it becomes harder bitumen. This bitumen recovery the weight loss under heating. Due to low thermal sensitivity, the softening point is much higher than regular bitumen and the penetration index (PI) is higher than road construction bitumen (8>PI>2) due to the letter has a gel-like structure because of asphalt accumulation. Oxidized bitumen 85/40 is a special and most usable grade in Scandinavia.
Oxidized Bitumen 85/40 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. Bitumen 85/40 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The designation of the Oxidized Bitumen 85/40 refers to the midpoint of the softening point acceptance criteria.
Bitumen 85/40 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, Bitumen 85/40 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 the 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.
Oxidized Bitumen 85/40 Applications
Oxidized Bitumen 85/40 is a solid or semi-black solid material and gradually liquid when heated. Oxidized Bitumen grades are blown or oxidized Asphalt‘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.
This bitumen is mostly used in industry, such as roof insulation, flooring, industrial mastic, pipe coating, and paints. Specification of Oxidized bitumen is categorized based on softening points and penetration rates. Also, Oxidised bitumen 85/40 using as raw material for bitumen coat, roofing, insulation, and isolation bitumen membrane sheet.
Technical Advantages of Oxidized Bitumen 85/40
- 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
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.
A 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 flashpoint 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.
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 85/40 to avoid overheating. For Health and Safety information, please make reference to the relevant MSDS.
Application of Oxidized Bitumen 85/40
Oxidized Bitumen 85/40 is a dark industrial bitumen. Petroleum residue modified by the oxidation process. In addition, Oxidized Bitumen is produced by passing air through bitumen under a controlled temperature state. Its stability ranges from highly viscous to solid. Oxidized Bitumen grade has technical advantages such as durability, flexibility, water-resistant and chemical stability. There is also a different grade of oxidized bitumen.
The Oxidised Bitumen 85/40 should be heated double temperature against the softening point to be able to have flow and viscosity.
Packing of Oxidized Bitumen 85/40
Oxidized Bitumen 85/40 in various packing, including bitumen 85/40 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 pallets can load to the 20ft container.
Technical Data Sheet of Oxidized Bitumen 85/40
| Bitumen 85/40 | Test method | Unit | Specification |
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 35/40 |
| Softening point °c | ASTM D36 | °C | 80/90 |
| Ductility @25 °c | ASTM D113 | Cm | 3 |
| Loss on heating(wt) % | ASTM D6 | Wt. % | 0.2 max |
| Flashpoint c | ASTM D92 | °C | 260 min |
| Solubility is CS2(wt) % | ASTM D4 | Wt. % | 99 min |
| Spot test | A.A.S.H.O.T 102 | — | Negative |
Oxidized Bitumen 90/10
Oxidized Bitumen 90/10 Description
Oxidized Bitumen 90/10 (in other words, oxidized Asphalt 90/10, blown bitumen 90/10) 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 asphalt 90/10 is based on petroleum bitumen which is made by oxidized asphalt 60/70 by 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.
Oxidized Bitumen 90/10 Applications
Oxidized bitumen 90/10 uses 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 asphalt 90/10 products are for paving. also used in asphalt-based paints for corrosion protection of metals, inlining public works structures, adhesives in electrical laminates, a base for synthetic turf; typical uses for Blown Asphalt 90/10 90/10 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing, caulking, mastics, and damp proofing. Oxidized bitumen 90/10 is using the insulation and isolation bitumen membrane sheet. Also, 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 Blown Asphalt 90/10 90/10 should be heated double temperature against the softening point to be able to have flow and viscosity. To use Blown Asphalt 90/10 90/10, surfaces must be dry, clean, and free of loose particles, formwork, curing products, irregularities, slurry, etc.
Storage/handling of Blown Asphalt 90/10
Bitumen 90/10 has 10 years of validity with multi-time heating and cooling, please refer to MSDS.
Packing of Blown Asphalt 90/10
Various pickings are available for customer’s purpose and conveniences. bitumen 90/10 in various packing including Kraft bag, meltable plastic bag, drum, and bulk Blown Asphalt 90/10 90/10 from penetration grade bitumen, which is blown by hot air in a controlled process until the desired specification is reached. Blown Asphalt 90/10 can be supplied in any grade and are designated by two numbers to indicate the softening point and penetration ranges. The bitumen grade 90/10 means the softening point is 90°c and penetration is 10 desi millimeter is produced in compliance and conformity with ASTM standard and meets the following specification.
Specification of Oxidized Bitumen 90/10
Analysis of bitumen 90/10
| Bitumen 90/10 | Test method | Unit | Specification |
| Specific gravity @25/25 C | ASTM D70 | (Kg/m3) | 1.05 approx. |
| Penetration @ 25°c | ASTM D5 | mm/10 | 5/15 |
| Softening point °c | ASTM D36 | °C | 85/95 |
| Ductility @25 °c | ASTM D113 | Cm | 1.5min |
| 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 |