VISCOSITY GRADE BITUMEN
IS Standard – VG 30
Viscosity Grade Bitumen VG 30 is a high-performance bitumen grade designed to meet the demanding requirements of road construction in hot climates. Known for its excellent resistance to deformation and high temperature stability, VG 30 is ideal for constructing heavy traffic roads and highways. Its superior binding properties and durability make it a critical material for ensuring the longevity and reliability of road infrastructures.
USES:
VG 30 bitumen is suitable for a wide range of road construction and maintenance applications. Its high viscosity and performance characteristics make it ideal for:
Construction of High Traffic Roads and Highways: VG 30 is extensively used in the construction of high traffic roads and highways, providing a durable and resilient surface that can withstand heavy loads and high temperatures.
Bituminous Macadam and Dense Graded Bituminous Mixes: VG 30 is an excellent choice for dense graded bituminous mixes, providing a strong and stable base for road surfaces.
Heavy Duty Pavements: VG 30 is suitable for constructing pavements that need to bear heavy loads, such as industrial areas and airports.
Asphalt Wearing Courses: VG 30 is used in the top layers of asphalt pavements, providing a smooth and durable surface that ensures a comfortable and safe driving experience.
KEY FEATURES
VG 30 bitumen is characterized by several key features that make it a preferred choice for various road construction and maintenance applications:
High Softening Point: VG 30 has a high softening point, making it suitable for hot climates where temperatures can be extreme. This ensures that the bitumen does not become too soft and deform under high temperatures
Excellent Resistance to Deformation: VG 30 offers superior resistance to deformation and rutting, which is essential for high-traffic roads and heavy-duty pavements. This ensures that the road surface remains smooth and safe even under heavy loads and high temperatures.
Superior Adhesion and Waterproofing: VG 30 provides excellent adhesion to aggregates, ensuring a strong and durable bond that enhances the structural integrity of the pavement. Its waterproofing properties protect the underlying layers from water infiltration, preventing damage and extending the lifespan of the pavement.
Durability: The superior binding properties and resilience of VG 20 ensure that pavements constructed with this grade of bitumen can withstand varying loads and environmental conditions, providing long-term durability.
TECHNICAL SPECIFICATIONS
VG 30 bitumen is produced to meet stringent technical specifications set forth by the Indian Standard IS 73: 2013, ensuring consistent quality and performance. Key technical parameters include:
Penetration Value: VG 30 has a penetration value of 50-70, indicating its relatively stiff consistency suitable for hot climates and heavy traffic conditions.
Viscosity: VG 30 bitumen has a viscosity of 2400-3600 poise at 60°C, ensuring its suitability for hot regions and ease of application.
Softening Point: The softening point of VG 30 is typically around 47-52°C, ensuring it remains stable and effective at higher temperatures.
Ductility: VG 30 exhibits high ductility, allowing it to stretch and deform without breaking, which is crucial for withstanding the stresses of traffic loads and temperature fluctuations.
STORAGE:
Maintain storage temperatures between 150°C and 180°C to prevent hardening and ensure the bitumen remains workable.
Use steel containers or bitumen tanks that are designed to handle high temperatures and prevent contamination.
Ensure storage facilities are well-ventilated, dry, and protected from moisture to prevent oxidation and degradation.
Avoid prolonged storage at high temperatures and frequent temperature fluctuations, which can lead to the hardening and loss of essential properties.
PACKAGING:
SPECIFICATIONS:
|
DESCRIPTION
|
UNIT
|
MIN
|
MAX
|
TEST METHOD
|
|---|---|---|---|---|
|
Penetration at 25°C, 100 gm, 5 s, 0.1 mm, min
|
MM
|
45
|
-
|
IS 1203
|
|
Absolute Viscosity @60°C, Poise
|
POISE
|
2400
|
3600
|
IS 1206 (Part 2)
|
|
Kinematic Viscosity @135°C, cSt, min
|
CST
|
350
|
-
|
IS 1206 (Part 3)
|
|
Flash Point (Cleveland Open Cup), °C, Min
|
°C
|
220
|
-
|
IS 1448 (P:69)
|
|
Solubility in Trichloroethylene, % min
|
%
|
99
|
-
|
IS 1216
|
|
Softening Point (R&B), °C , Min
|
°C
|
47
|
-
|
IS 1205
|
|
Tests on Residue from Rolling Thin Film Oven Test
|
||||
|
Viscosity Ratio @ 60°C, max
|
-
|
-
|
4
|
IS 1206 (Part 2)
|
|
Ductility @ 25°C cm, min
|
CM
|
40
|
-
|
IS 1208
|
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