Standard Viscosity Grade Bitumen (AC-Grades), in which the Viscosity of the standard bitumen (asphalt) is measured at 60 C (140 F). RTFOT Viscosity Grade Bitumen (AR-Grades), in which the Viscosity of bitumen (asphalt) is measured at 60 C (140 F) after the roll on thin film oven test.
Viscosity grade bitumen have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/ viscosity relationship is important when determining the performance parameters such as the adhesion, rheology, durability and application temperatures of bitumen. In the Viscosity Graded Bitumen specifications further special emphasizes is placed on the Bitumen ductility.
To grade the bitumen-based on viscosity BIS revised IS-73-1992 specifications (Viscosity at 60 C) and as such there are four grades VG-10, VG-20, VG-30 & VG-40. A few qualification tests like specific gravity, water content, ductility, loss on heating & fares breaking point were removed from IS:73-1992 as these tests do not have any relationship with the performance of the product.
Viscosity Grade Bitumen is widely used in spraying applications such as surface-dressing and paving in very cold climates. It is also used to manufacture bitumen emulsion and modified bitumen products.
Bitumen Grade 60/70 is a high-quality, semi-solid petroleum product derived from the distillation of crude oil. Known for its excellent adhesive and waterproofing properties, this grade of bitumen is primarily used in the construction and maintenance of roads, runways, and other infrastructure projects. It is particularly well-suited for hot climates due to its optimal softening point and penetration range, which ensures long-lasting performance even under high temperatures.
Key Features:
Penetration Grade: 60/70, offering a perfect balance between hardness and softness, making it ideal for road construction.
Softening Point: Ensures stability under high-temperature conditions, reducing the risk of road deformation.
Adhesive Properties: Excellent adhesion to aggregates, providing strong and durable road surfaces.
Waterproofing: Superior water resistance, protecting the pavement from water damage and extending the lifespan of roads.
Durability: High resistance to aging and weathering, ensuring prolonged service life of the infrastructure.
Applications:
Road Construction: Ideal for the construction of high-traffic roads, highways, and expressways.
Airport Runways: Ensures smooth and durable surfaces for airport runways, capable of withstanding heavy loads.
Paving: Suitable for various paving applications, including urban roads, rural roads, and parking lots.
Waterproofing: Used in waterproofing membranes and roofing applications, providing excellent protection against moisture.
Specifications:
Penetration at 25 C: 60-70 dmm
Softening Point: 49-56 C
Flash Point: Minimum 232 C
Ductility at 25 C: Minimum 100 cm
Solubility in Trichloroethylene: Minimum 99.0%
Specific Gravity: 1.01-1.06
Packaging: Available in drums, bulk containers, or as per customer requirements.
Compliance: Bitumen Grade 60/70 meets international standards and specifications, ensuring consistent quality and performance across all applications.
Why Choose Bitumen Grade 60/70?
Proven Performance: Trusted by engineers and construction professionals worldwide for its reliability and durability.
Versatile Applications: Suitable for a wide range of paving and waterproofing projects.
High Quality: Manufactured under stringent quality control measures to meet global standards.
Bitumen Grade 60/70 is a high-quality, semi-solid petroleum product derived from the distillation of crude oil. Known for its excellent adhesive and waterproofing properties, this grade of bitumen is primarily used in the construction and maintenance of roads, runways, and other infrastructure projects. It is particularly well-suited for hot climates due to its optimal softening point and penetration range, which ensures long-lasting performance even under high temperatures.
Key Features:
Penetration Grade: 60/70, offering a perfect balance between hardness and softness, making it ideal for road construction.
Softening Point: Ensures stability under high-temperature conditions, reducing the risk of road deformation.
Adhesive Properties: Excellent adhesion to aggregates, providing strong and durable road surfaces.
Waterproofing: Superior water resistance, protecting the pavement from water damage and extending the lifespan of roads.
Durability: High resistance to aging and weathering, ensuring prolonged service life of the infrastructure.
Applications:
Road Construction: Ideal for the construction of high-traffic roads, highways, and expressways.
Airport Runways: Ensures smooth and durable surfaces for airport runways, capable of withstanding heavy loads.
Paving: Suitable for various paving applications, including urban roads, rural roads, and parking lots.
Waterproofing: Used in waterproofing membranes and roofing applications, providing excellent protection against moisture.
Specifications:
Penetration at 25C: 60-70 dmm
Softening Point: 49-56C
Flash Point: Minimum 232C
Ductility at 25C: Minimum 100 cm
Solubility in Trichloroethylene: Minimum 99.0%
Specific Gravity: 1.01-1.06
Packaging: Available in drums, bulk containers, or as per customer requirements.
Compliance: Bitumen Grade 60/70 meets international standards and specifications, ensuring consistent quality and performance across all applications.
Why Choose Bitumen Grade 60/70?
Proven Performance: Trusted by engineers and construction professionals worldwide for its reliability and durability.
Versatile Applications: Suitable for a wide range of paving and waterproofing projects.
High Quality: Manufactured under stringent quality control measures to meet global standards.
