Cutback SC250
SC250 slow soluble bitumen is obtained from the combination of pure bitumen and heavy industrial solvents. Compared to other types of cutback bitumen, this bitumen takes longer to set and its solvent evaporates more slowly. SC250 bitumen can also be produced from crude oil distillation.
Soluble bitumen or cutback bitumen is produced according to ASTM D 2026M-15 standard and consists of 60% pure bitumen. The specifications of Cutback SC250 based on various tests are obtained as follows.
Kinematic Viscosity of Cutback SC250
Viscosity or bitumen’s resistance to flow is measured at 60 degrees Celsius and it is 250 to 500 mm2/s. This indicator is very important in soluble bitumen.
The ignition point of Cutback SC250
The measurement of the ignition point of SC250 bitumen, which is the same as the ignition temperature of bitumen vapors against the ignition source, is performed with an open-air Cleveland device. The flash point of this bitumen is approximately 60 to 70 degrees Celsius.
Volume percentage of distillates in SC250
The volume percentage of dissolved bitumen after distillation should be calculated to obtain the amount of pure remaining bitumen. This index is obtained in laboratory conditions and at 360 degrees Celsius, from 4 to 20% for soluble bitumen SC250.
Kinematic viscosity in SC250 distillation residue
The viscosity of the distillation residue should also be evaluated. The kinematic viscosity of SC250 cutback bitumen distillation residue at 60°C is about 400 to 10,000 mm2/s.
Application of SC250 long-lasting solution bitumen
Soluble bitumen is used in the road construction industry. Road construction engineers use SC250 bitumen in the manufacture of factory cold asphalt, base, liner and topping for continuous grading. Of course, due to the long-lasting nature of this bitumen, it may not be used much.
If we want to talk about the application of Cutback SC250, we should mention its application in bitumen spraying and dust binder dusting. Don’t forget to pay attention to the time it takes and the type of application before ordering bitumen.
The price of long-lasting solution bitumen SC250
The price and quality of the products are always one of the most important points that we pay attention to for our purchase. The price of SC250 backhoe is very important for the asphalt manufacturers and sometimes they may sacrifice the quality for the price.
The price of this product depends on factors such as the percentage of pure bitumen, the type of solvent and additives, the manufacturing company, and the price of currency and dollars.
What are the ingredients of long-lasting soluble bitumen?
Slow Curing Bitumen, known by the abbreviation SC, can be produced from the combination of pure bitumen and heavy industrial solvents. These industrial solvents can be diesel or black oil.
One of the other methods of producing long-lasting bitumen is the distillation of crude oil and obtaining it directly. In this case, the solvent oils have not yet been separated from the oil. The time required for this bitumen is much longer than that of quick-setting and slow-setting bitumen, and its solvents evaporate more slowly.
Types of slow-setting bitumen
Retardant bitumen is available in 4 different types. Types of this bitumen are classified based on their speed and viscosity. The number of each of them corresponds to the viscosity of bitumen in centistokes (Cst). This category is as follows:
SC-70
This long-lasting bitumen has the lowest viscosity among other long-lasting bitumen and has 50% pure bitumen in its composition.
SC-250
SC-250 retarding bitumen has more viscosity than type 70. 60% pure bitumen is used to produce this type of long-lasting bitumen.
SC-800
Another type of long-lasting bitumen is SC-800. This item of long-lasting bitumen has 70% pure bitumen in its composition.
SC-3000
The last type of long-lasting bitumen is SC-3000, which has the highest viscosity among long-lasting bitumen. This bitumen has 80% pure bitumen in its composition.
