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 Viscosity Grade
Viscosity Bitumen Characterized by its viscosity grade, it's suitable for high-temperature applications, ensuring stability and flexibility.
Superior Quality VISCOSITY BITUMEN , sourced from the best refineries, our bitumen meets international standards for quality and consistency. these grades are vailable, VG 10, VG20, VG30, VG40
Bitumen , All Grades
VG10 bitumen is the softest grade of viscosity bitumen. This type of bitumen is widely used for spraying applications and surface coating. VG 10 bitumen means that your bitumen is also suitable for paving roads in a very cold climate instead of the old 80/100 penetration grade. The air temperature that matches VG10 bitumen ranges from -10 â?¦C to 25 â?¦C. Due to the high temperatures in hot climatic zones, the application of VG10 cannot provide desirable rutting resistance. This type of bitumen is also used to manufacture bitumen emulsions and modified bitumen products especially in India. As a viscosity grade bitumen, VG10 has a better performance incold weather. To know vg10 latest price contact us.
VG-20 bitumen is a grade of viscosity bitumen used in cold climatic and high altitude regions. This grade of bitumen is suitable for road construction in regions with 30 to 37 C average temperature. In North India, vg20 is used for road construction in hot mix asphalt. The standard penetration value of bitumen viscosity grade VG-20 is 60 mm at 25 C. The absolute viscosity of VG-20 bitumen is 1600 to 2400 poise at 60 C.
Petroleum bitumens are solid and semi-solid bitumens that are obtained directly from the distillation of crude oil or by other additional operations such as air blowing. Oil bitumen is the residue or heavy residue of crude oil distillation. The amount of bitumen in crude oil varies from zero to more than half of it. In addition, bitumens obtained from different sources can have many differences. The important use of bitumen is due to the existence of two important properties of this material, being impermeable to water and high adhesion. According to these properties, the main use of bitumen is in road construction and insulation. for get more Information in touch with us
Asphalt bitumen is mainly used as basic construction materials, raw materials and fuels, and its application scope is such as transportation (road, railway, aviation, etc.), construction industry, agriculture, water conservancy engineering, industry (mining industry, manufacturing industry), civil and other departments.
