Cutback Bitumen SC-70

Cutback Bitumen SC-70 (Slow Curing 70) is a type of bitumen that is blended with a petroleum solvent to reduce its viscosity and make it easier to apply at lower temperatures. Slow-curing cutbacks use oils like diesel or low-volatility solvents as the diluent, which evaporate more gradually compared to rapid-curing cutbacks, leaving behind the bitumen to bind with the aggregate.

  • Appearance: Black solid or a viscous liquid
  • Standards: ASTM D2026
  • HS Code: 27150090

Package: Bitumen are packed in

  • New Steel Drums of 200Kg
  • Reconditioned Steel Drums of 200Kg
  • IBC Tank of 1 Metric Ton

Cutback Bitumen SC-70 (ASTM D2026) – Technical Specifications

Properties Units Limits Test Methods
Kinematic Viscosity at 60°C mm2/s 70-140 ASTM D-2170
Flash Point Cleveland open cup °C Min. 66 ASTM D92
Distillation test:

Total distillate to 360°C

 % Vol 10-30 ASTM D402
Solubility in Trichloroethylene % Wt Min. 99 ASTM D2042
Kinematic viscosity on distillation residue at 60°C mm2 /s 400-7000 ASTM D2171
Asphalt residue:

Residue of 100 penetration

 % Min. 50 ASTM D5

Ductility of 100 penetration residue at 25°C

 cm Min. 100 ASTM D113
Water % Wt Max. 0.5 ASTM D-95

Main Applications Of Cutback Bitumen SC-70

The main applications of Cutback Bitumen Slow Curing (SC-70) are in road construction, repair, and maintenance, especially in cases where cold application is preferred. Key uses include:

  1. Prime Coating: Cutback Bitumen SC-70 is applied to granular or unbound base layers to prepare the surface for asphalt layers by improving adhesion.
  2. Surface Dressing: It is sprayed on road surfaces and covered with aggregate to create a protective and durable layer for road surfaces.
  3. Cold Mix Asphalt: Used in cold mix asphalt for road patching and repairing potholes, eliminating the need for heating the bitumen.
  4. Gravel Road Stabilization: Cutback Bitumen SC-70 is applied to stabilize unpaved or gravel roads by binding the loose materials and enhancing road strength.
  5. Dust Control: It is sprayed on unpaved roads and construction sites to reduce dust by binding loose particles.
  6. Soil Stabilization: Cutback Bitumen SC-70 is used to bind soil particles and reinforce the ground, improving load-bearing capacity for foundations or temporary roads.
  7. Crack Sealing: It is used to fill and seal cracks in pavements, preventing moisture ingress and prolonging pavement life.

These applications make Cutback Bitumen SC-70 suitable for cold weather regions, remote areas, and projects that require extended workability.

Various Packing Method for Cutback Bitumen SC-70

Packing cutback bitumen is an essential process to ensure its safe transportation, storage, and handling. The method of packing often depends on the type of cutback bitumen, the transportation method, and the end-use. Here are the various methods used to pack cutback bitumen:

Steel Drum Packing

Cutback Bitumen is commonly packed in new or re-conditioned steel drums, which are robust and provide good protection during transportation.

IBC Tank Packing

Cutback Bitumen is commonly packed in new IBC tank or re-conditioned IBC tank, which are robust and provide good protection during transportation.

Drum Specification

Tare Weight
16±0.5Kg
Net Weight
190±5Kg
Gross Weight
206±5Kg

Loadability in Containers
No. of Drums
Net Weight
In 20Ft Contianer
with Pallet
80
~14.8 Ton
without Pallet
80
~14.80 Ton
In 40Ft Contianer
with Pallet
140
~25.90 Ton
without Pallet
140
~25.90 Ton

BC Tank Specification

Tare Weight
65±3Kg
Net Weight
950±50Kg
Gross Weight
1015±50Kg

Loadability in Containers
No. of Tanks
Net Weight
In 20Ft Container
20
~19.0 Ton
In 40Ft Container
28
~27.0 Ton

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