Embark on a journey through the world of bitumen and its grades, each tailored to specific applications and environmental conditions. Bitumen, a versatile thermoplastic material, undergoes changes in stiffness influenced by its crude oil source and refining techniques.
Evolution of Bitumen Specifications:
Initially based on penetration, paving grade bitumen specifications (IS: 73-1950) were introduced by the Bureau of Indian Standards (BIS) in 1950, later revised in 1962 and 1992. In July 2006, BIS updated specifications to viscosity grading (IS-73-1992), leading to the introduction of grades VG-10, VG-20, VG-30, and VG-40. Qualification tests were revamped to enhance product quality and performance.
Transition to Viscosity Grades:
Starting from August 2009, IndianOil adopted viscosity grade specifications (IS: 73-1992) for marketing bitumen, replacing penetration grades. Viscosity grading categorizes bitumen based on fluidity, a critical factor for various applications and climatic conditions.
Understanding Viscosity Grades:
VG-10 Bitumen: Primarily used for spraying applications, manufacturing bitumen emulsions, and producing modified products, suitable for cold climates.
VG-20 Bitumen: Employed in paving projects in cold climates and high-altitude regions.
VG-30 Bitumen: Specifically formulated for heavy-duty pavements enduring significant traffic loads, serving as a replacement for 60/70 penetration grade.
VG-40 Bitumen: Ideal for highly stressed areas such as intersections and truck parking lots, offering enhanced resistance to shoving and heavy traffic, replacing 30/40 penetration grade.
Discover the wide-ranging applications of bitumen grades and optimize your projects for durability and performance.
Attention:
Sales Director
VYZYY
CANLANE GLOBAL LLC
Dubai, UAE