Cutback Bitumen RC-250
DESCRIPTION OF CUTBACK BITUMEN RC-250
Cutback Bitumen RC-250 is an asphalt cement that has a solvent or distillate such as gasoline, diesel fuel, kerosene, or naphtha added to make the asphalt liquid at ambient temperatures and improve its ability to coat aggregates. Two letters followed by a numerical digit designate or name a cutback asphalt.Cutback asphalt can contain between 12 and 40 percent distillate. The high demand for the distillates to be used in energy applications and ever-increasing air quality regulations have caused a steady decline in the use of cutback asphalt. When gasoline or naphtha is used to flux asphalt cement, the final product is called “rapid curing” (RC) cutback asphalt. Specifications permit up to 45 percent distillate in manufacturing an RC-250 cutback asphalt.
Our Cutback Bitumen RC-250 complies with cutback petroleum asphalts of the rapid-curing type for use in the construction and treatment of pavements as per ASTM D2028-97 reapproved in 2004. Cutback Grade Bitumen is normally used in spraying and in some mixing applications. Cutback Bitumen is penetration grade bitumen blended with a solvent such as kerosene, white spirit, gasoline, and naphtha, controlling the curing time. Cut back petroleum asphalts of the rapid curing type supplied by RAHA OIL are petroleum grade bitumen manufactured from the fractional / vacuum distillation of crude oil blended with a solvent. Bitumen supplied by RAHA OIL is produced from the vacuum residue (short residue) feedstock. Penetration Grade bitumens are specified by the penetration and softening point test. Designation is by penetration range only. The penetration grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/ viscosity relationship is important when determining the performance parameters such as the adhesion, rheology, durability, and application temperatures of bitumen. The cutback bitumen (Asphalts) supplied by RAHA OIL are blended from petroleum grade bitumen as stated herein.
USES OF CUTBACK BITUMEN RC-250
Current common uses are in penetrating prime coats and in producing patching or stockpile mixtures. Cutback asphalt used in mixing with aggregate will usually contain an adhesion agent to assist in the coating of the aggregate surface. Cutback agents are used to lowering the viscosity of bitumen when it is applied as a primer to the surface of a road pavement aggregate base course or substrate. Kerosene is used as a bitumen cutback agent at different concentrations according to local conditions and requirements. The cutback bitumen is ideal for prime coat and cold applied because of easy uses and no need to thinning and heating. Cutback bitumen RC-250 consists of initial incorporation of asphalt into the surface of non-asphalt based course preparatory to any superimposed treatment of construction. The cutback asphalt RC250 applying to waterproof of surfaces plug capillary voids, coat, and bond loose mineral particles. Also, It uses in Priming of all non-bituminous road buses, provision of temporary surfaces(deviations). This kind of bitumen is suitable to be used in the construction and treatment of pavements as per ASTM D2028-97 reapproved in 2004. Cutback Grade Bitumen is normally used in spraying and in some mixing applications. Current common uses are in penetrating prime coats and in producing patching or stockpile mixtures. Cutback asphalt used in mixing with aggregate will usually contain an adhesion agent to assist in the coating of the aggregate surface. RC250 is used for pavement base and surfaces with dense-graded aggregate also for patching.
APPLICATION OF BITUMEN RC-250
Cutback agents are used to lower the viscosity of bitumen when it is applied as a primer to the surface of a road pavement aggregate base course or substrate. Kerosene is used as a bitumen cutback agent at different concentrations according to local conditions and requirements. This kind of bitumen is suitable to be used in the construction and treatment of pavements as per ASTM D2028-97 reapproved in 2004. Cutback Grade Bitumen is normally used in spraying and in some mixing applications.
SAFETY OF CUTBACK BITUMEN RC-250
- 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 storm water or sewer systems.
PACKING OF CUTBACK BITUMEN RC-250
Cutback Bitumen RC-250 (Rapid-Curing) is typically packed in various containers to facilitate storage, transportation, and application. The packaging options for Cutback Bitumen RC-250 may include:
- Steel Drums: Cutback Bitumen RC-250 is commonly packed in steel drums. These drums are durable and provide protection against external elements. Standard steel drums have a capacity of 180 kg or 200 kg.
- Bulk Containers (ISO Tanks): For larger quantities, Cutback Bitumen RC-250 can be transported in bulk using ISO tanks. ISO tanks are large containers suitable for the transportation of liquids, including bitumen.
- Bitutainers: Bitutainers are specialized containers designed for the transportation and storage of bitumen products. They offer advantages in terms of high carrying capacity, safety, and efficient heating. Bitutainers are typically used for bitumen shipping on a larger scale.
- Flexitanks: In some cases, Cutback Bitumen RC-250 may be transported in flexitanks. Flexitanks are flexible containers that can hold liquid cargo and are often used for bulk transportation.
- Polyethylene Bags: In certain applications, small quantities of Cutback Bitumen RC-250 may be packed in polyethylene bags. This is less common for larger-scale transportation but may be suitable for specific uses.
The choice of packaging depends on the quantity of bitumen needed, the mode of transportation, and the specific requirements of the end-user or project. Steel drums are a common choice for smaller quantities, while bulk containers and Bitutainers are preferred for larger volumes. The packaging should comply with relevant safety and transportation regulations to ensure the integrity of the product during transit and storage. It’s essential to follow proper handling and storage procedures outlined by manufacturers and regulatory guidelines.
TECHNICL DATA SHEET OF CUTBACK BITUMEN RC-250
RAHA OIL guarantees that the Rapid curing CutBack Grade RC-250 it supplies under its offers is produced in compliance to and is in conformity to ASTM D-2028–97 Rev 2004 and is compliant to the following specification requirements.
| Property | Min | Max | Test Method |
|---|---|---|---|
| Kinematic viscosity at 60°C [140°F], mm2/s | 250 | 500 | ASTM D2170 |
| Flashpoint(Cleveland open cup), °C [°F] | - | 27 | ASTM D3143 |
| Distillate Test | |||
| to 437°f(225°c) | 35 | - | ASTM D402 |
| To 500°f(260°c) | 60 | - | ASTM D402 |
| to 600°f(316°c) | 80 | - | ASTM D402 |
| Residue from distillation to 680°f(360°c), percent volume by difference | 65 | - | ASTM D402 |
| Asphalt Residue | |||
| Penetration 77°f(25°c) 100g,5s mm | 80 | 120 | ASTM D5 |
| Ductility 77°f(25°c) 5cm/min cm | 100 | - | ASTM D113 |
| Solubility in trichloroethylene % | 99 | - | ASTM D2042 |
| Water, percent volume | - | 0.2 | ASTM D95 |
