
Cutback Bitumen SC-3000 Description
Cutback Bitumen SC-3000 is a type of bitumen that has been liquefied by blending it with a solvent, typically a high-flash point hydrocarbon solvent, to reduce its viscosity for easier application. The “SC” stands for “Slow-Cure,” indicating that this type of cutback bitumen has a slower curing time compared to other varieties. The “3000” refers to the kinematic viscosity of the cutback bitumen at 25°C.
SC-3000 is commonly used in road construction and maintenance for various applications such as surface sealing, prime coating, tack coating, and patch repair. Its slow-curing properties allow it to penetrate deeply into the pavement surface, providing enhanced adhesion and durability of asphalt layers. Additionally, its high viscosity ensures excellent waterproofing and weather resistance, making it suitable for use in diverse weather conditions.
Uses of Cutback Bitumen SC-3000
Cutback Asphalt SC-3000, with its high viscosity and slow-curing properties, finds various applications in road construction and maintenance. Some common uses include:
- Surface Sealing: SC-3000 can be used for surface sealing to waterproof and protect asphalt surfaces from moisture, oxidation, and wear. It helps extend the lifespan of the pavement by sealing cracks and preventing water infiltration.
- Emulsification: It can be emulsified to produce bitumen emulsions, which are widely used in road construction for applications such as chip sealing, fog sealing, and cold mix asphalt. Bitumen emulsions provide a cost-effective solution for surface treatments and repairs.
- Prime Coating: SC-3000 can be applied as a prime coat to prepare the base surface before paving. It enhances the bond between the base and the subsequent asphalt layers, improving the overall pavement performance.
- Tack Coat: It serves as a tack coat to promote adhesion between asphalt layers during pavement construction or rehabilitation. SC-3000 ensures proper bonding and prevents slippage, especially in areas with high traffic or heavy loads.
- Mixing with Aggregate:* SC-3000 can be mixed with aggregate to create cold mix asphalt for temporary repairs or maintenance work in cold weather conditions. The slow-curing nature of SC-3000 allows for better workability and compaction.
- Pothole Repair: It can be used for patching and repairing potholes and other pavement defects. SC-3000 helps create a strong bond between the patching material and the existing pavement, ensuring durable repairs.
- Road Maintenance: SC-3000 is often used for routine maintenance activities such as crack sealing and surface rejuvenation to prolong the life of asphalt pavements and improve their appearance and functionality.
Cutback Bitumen SC-3000 Characteristics
Cutback Asphalt SC-3000 possesses several key characteristics that make it suitable for various applications in road construction and maintenance:
- High Viscosity: SC-3000 exhibits a high viscosity, which allows it to effectively adhere to aggregate particles and surfaces, providing excellent waterproofing and durability.
- Slow-Curing: As a slow-curing cutback bitumen, SC-3000 has a prolonged evaporation rate, allowing for extended workability and penetration into the pavement surface.
- Weather Resistance: SC-3000 offers good resistance to weathering, including exposure to sunlight, moisture, and temperature fluctuations, which helps maintain the integrity of asphalt surfaces over time.
- Adhesion: It promotes strong adhesion between asphalt layers, enhancing the overall performance and longevity of road surfaces by preventing delamination and rutting.
- Versatility: SC-3000 can be used in a variety of applications such as surface sealing, prime coating, tack coating, and patch repair, making it a versatile choice for road construction and maintenance projects.
- Compatibility: It is compatible with a wide range of aggregates and other asphalt materials, allowing for flexibility in construction and repair work.
- Ease of Application: Despite its high viscosity, SC-3000 is relatively easy to handle and apply, making it suitable for use in both small-scale and large-scale projects.
Packing of cutback Asphalt SC-3000
Packing of cutback bitumen SC-3000 is in the new thick steel drum on the pallet to prevent any leak inside of container also bulk in bitutainers and tanker.
Safety of cutback Asphalt SC-3000
Safety precautions are crucial when handling cutback bitumen SC-3000 due to its flammable nature and potential health hazards. Here are important safety considerations:
- Personal Protective Equipment (PPE): Wear appropriate PPE such as gloves, goggles, and protective clothing to prevent skin contact and eye irritation.
- Ventilation: Work in well-ventilated areas to minimize inhalation of fumes. If working in enclosed spaces, use respiratory protection to avoid breathing in vapors.
- Fire Safety: Keep away from open flames, sparks, and sources of ignition, as cutback bitumen SC-3000 is flammable. Store and handle it in accordance with local fire regulations.
- Spill Cleanup: In case of spills, contain the area immediately to prevent spreading and use absorbent materials to clean up the spilled material. Avoid releasing it into the environment or water sources.
- Storage: Store cutback bitumen SC-3000 in tightly sealed containers away from heat, sparks, and direct sunlight. Follow manufacturer guidelines for storage temperature and conditions.
- Handling: Handle the material with care to prevent spills or splashes. Avoid prolonged skin contact and wash hands thoroughly after handling.
- Disposal: Dispose of waste material according to local regulations. Avoid contaminating soil or water sources.
Specification of cutback bitumen SC-3000
| property | specification limit | Test method | |
| Min | Max | ||
| Kinematic viscosity at 60°C [140°F], mm2/s | 3000 | 6000 | ASTM D2170 |
| Flashpoint(Cleveland open cup), °C [°F] | 70 | — | ASTM D92 |
| distillate test | |||
| Total distillate to 360°C [680°F], volume % | — | 8 | ASTM D402 |
| Solubility, % | 95 | — | ASTM D2024 |
| Kinematic viscosity on distillation residue at 60°C [140°F], mm2/s | 2000 | 35000 | ASTM D2170 |
| Asphalt residue: | |||
| Residue of 100 penetration, % | 75 | — | ASTM D243 |
| Ductility of 100 penetration residue at 25°C [77°F], cm | 50 | — | ASTM D113 |
| Water, % | — | 0.5 | ASTM D95 |



