Cutback Bitumen SC-250 Description
Cutback Bitumen SC-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.
The SC liquid asphalt may be obtained by fluxing an asphalt cement with a less volatile distillate such as gas oil. The SC-70 and SC-250 grade cutback asphalts are very similar to residual refinery products that are used as heavy fuel oils such as bunker C or Number six fuel oils. These SC cutback materials, whether straight run or fluxed with a relatively non-volatile material such as gas oil, are also known as “road oils”.
Cutback Bitumen SC-250 Uses
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 for thinning and heating.
Cutback bitumen SC-250 consist of initial incorporation of asphalt into the surface of non-asphalt based course preparatory to any superimposed treatment of construction.
The cutback asphalt SC-250 applying to waterproof of surfaces plug capillary voids, coat, and bond loose mineral particles.
Packing of Cutback Asphalt SC-250
Packing of cutback bitumen SC-250 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 SC250
Refer to Safety Datasheets 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.
Specification of Cutback Asphalt SC250
We guaranty the quality of cutback SC-250 with the arrangement of the international inspectors to check the quality and quantity of the bitumen on each shipment during the loading to vessel and controlling the production by the QC team via batch test report before shipping. RABIT guaranty the quality to meet with ASTM/EN 15322:2009.
| property | specification limit | specification limit | Test method |
| Min | Max | ||
| Kinematic viscosity at 60°C [140°F], mm2/s | 250 | 500 | ASTM D2170 |
| Flashpoint(Cleveland open cup), °C [°F] | 60 | — | ASTM D92 |
| distillate test | |||
| Total distillate to 360°C [680°F], volume % | — | 25 | ASTM D402 |
| Solubility, % | 95 | — | ASTM D2024 |
| Kinematic viscosity on distillation residue at 60°C [140°F], mm2/s | 400 | 10000 | ASTM D2170 |
| Asphalt residue: | |||
| Residue of 100 penetration, % | 50 | — | ASTM D243 |
| Ductility of 100 penetration residue at 25°C [77°F], cm | 50 | — | ASTM D113 |
| Water, % | — | 0.5 | ASTM D95 |