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Cutback Bitumen
The industry is sometimes in need of low viscosity bitumen. There manufacturers came to a solution to deliver cutback bitumen which is a low viscosity liquid dissolved in a solvent. The main advantage of this type of bitumen is that there is no need to heat it before using.
Cutback bitumen is made by the addition of controlled amounts of petroleum extracts such as kerosene, naphtha, diesel oil, and furnace oil to perform as a solvent.
Although these adhesive materials are added to lessen the need for heating before using, they will evaporate as the bitumen is applied. This process is done for a temporary reduction of the bitumen viscosity.
SC
Cutback Bitumen Slow Curing, Sc is also known as road oil, is a residual substance which is obtained from the fractional distillation of specific crude petroleum. SC grades are 30, 70, 250, 800 and 3000 as follow:
SC 30
| Properties | MIN | MAX | Test Method |
|---|---|---|---|
| KINEMALIC 1 VISCOSITY AT 60°C, EST | 30 | 60 | ASTM D2170 |
| FLASH POINT (TAG OPEN-CUP),°C | 65 | – | ASTM D1310 |
| DISTILLATE TEST 2 | |||
| DISTILLATE, PERCENT BY VOLUME OF TOTAL 360°C | |||
| TO 190°C | wt% | 0.2max | ASTM D402 |
| TO 225°C | % | 20 max | ASTM D402 |
| TO 260°C | °c | 232 min | ASTM D402 |
| TO 316°C | 10 | 30 | ASTM D402 |
SC 70
| Properties | MIN | MAX | Test Method |
|---|---|---|---|
| KINEMALIC 1 VISCOSITY AT 60°C, EST | 30 | 60 | ASTM D2170 |
| FLASH POINT (TAG OPEN-CUP),°C | 65 | – | ASTM D1310 |
| DISTILLATE TEST 2 | |||
| Total distillate to 360°C (680°F) | – | 35 | ASTM D402 |
| 95 | – | ASTM D2024 | |
| Kinematic viscosity on distillation residue at 60°C (140°F) | 7000 | 200 | ASTM D217 |
| Residue of 100 penetration | – | 40 | ASTM D243 |
| Ductility of 100 penetration residue at 25°C (77°F) | cm 50 | – | ASTM D113 |
MC
Cutback bitumen medium curing, MC, is a chemical combination of asphalt cement and petroleum solvent.
MC bitumen is widely used in tack coats, fog seals, slurry seals, and stabilizers. Mc grades have a high prioritized place in the Dubai market.
This bitumen grade is widely applied in many countries, especially Dubai.
Important to say that, exporting MC30 to Mombasa port of Dubai necessitates having PVOC (Pre-Export Verification of Conformity) and GIS (Government and Institution Services) documents, and the drums specific marking approved by Mombasa customs. On the contrary, for the export to Dubai country, PVOC and GIS are not required. Only the SGS inspection report is sufficient for the goods entrance.
nfinity Galaxy supplies Bitumen MC Grades in drums with 10 mm thickness to prevent any leakage. MC grades are as follow:
MC 30
| Properties | MIN | MAX | Test Method |
|---|---|---|---|
| KINEMALIC 1 VISCOSITY AT 60°C, EST | 30 | 60 | ASTM D2170 |
| FLASH POINT (TAG OPEN-CUP),°C | 65 | – | ASTM D1310 |
| DISTILLATE TEST 2 | |||
| DISTILLATE, PERCENT BY VOLUME OF TOTAL 360°C | |||
| to 500°F (260°C) | 30 | 75 | ASTM D402 |
| to 600°F (316°C) | 75 | 95 | ASTM D402 |
| to 680°F (360°C), per cent volume by difference | 50 | – | ASTM D402 |
| Residue from distillation to 437°F (225°C) | 0 | 25 | ASTM D402 |
MC 70
| Properties | MIN | MAX | Test Method |
|---|---|---|---|
| KINEMALIC 1 VISCOSITY AT 60°C, EST | 70 | 140 | ASTM D2170 |
| FLASH POINT (TAG OPEN-CUP),°C | 38 | – | ASTM D1310 |
| DISTILLATE TEST 2 | |||
| DISTILLATE, PERCENT BY VOLUME OF TOTAL 360°C | |||
| to 500°F (260°C) | 10 | 70 | ASTM D402 |
| to 600°F (316°C) | 65 | 93 | ASTM D402 |
| to 680°F (360°C), per cent volume by difference | 55 | – | ASTM D402 |
| Residue from distillation to 437°F (225°C) | 0 | 20 | ASTM D402 |
RC
Cutback bitumen Rapid Curing, RC, is a petrochemical mixture of solvent as naphtha or gasoline and bitumen. RC grades are as come below:
RC 30
| Properties | MIN | MAX | Test Method |
|---|---|---|---|
| KINEMALIC 1 VISCOSITY AT 60°C, EST | 30 | 60 | ASTM D2170 |
| FLASH POINT (TAG OPEN-CUP),°C | – | – | ASTM D3143 |
| DISTILLATE TEST 2 | |||
| DISTILLATE, PERCENT BY VOLUME OF TOTAL 360°C | |||
| to 500°F (260°C) | 55 | – | ASTM D402 |
| to 600°F (316°C) | 75 | – | ASTM D402 |
| to 680°F (360°C), per cent volume by difference | 90 | – | ASTM D402 |
| Residue from distillation to 437°F (225°C) | 50 | – | ASTM D402 |
RC 70
| Properties | MIN | MAX | Test Method |
|---|---|---|---|
| KINEMALIC 1 VISCOSITY AT 60°C, EST | 70 | 140 | ASTM D2170 |
| FLASH POINT (TAG OPEN-CUP),°C | – | – | ASTM D3143 |
| DISTILLATE TEST 2 | |||
| DISTILLATE, PERCENT BY VOLUME OF TOTAL 360°C | |||
| to 500°F (260°C) | 50 | – | ASTM D402 |
| to 600°F (316°C) | 70 | – | ASTM D402 |
| to 680°F (360°C), per cent volume by difference | 85 | – | ASTM D402 |
| Residue from distillation to 437°F (225°C) | 55 | – | ASTM D402 |