Nowadays, VG bitumen is used instead of penetration bitumen, because it is tested more carefully in two phases by experts. Well suited for road construction in hot weather Maximizes asphalt performance in hot regionsĪ more reliable choice than bitumen pen 60/70 Used in cold regions for road construction Recommended for road construction in cold regions Ideal for spraying Used in production of bitumen emulsion Viscosity Range at 60☌ (Absolute Viscosity) In the table you can see different applications and properties of VG bitumen. Today, more than 250 different applications for VG bitumen have been considered that it seems to be impossible to replace them with other materials. The important use of VG bitumen is due to the existence of two important properties of this material which are water impermeability and high adhesion. Generally, each of these viscosity grade bitumen has different application according to the two important factors such as climate and traffic conditions. Read the article to understand the viscosity grade bitumen definition, applications and specifications. Viscosity Grade bitumen is determined by IS 73, ASTM and AASHTO. According to the IS, grading of Bitumen is changed from penetration grade to viscosity grade in 2006. To know more about VG’s specification and comparison of the properties of grades, see the table at the end of the article. Viscosity test on bitumen results the classification of bitumen in a range of grades, including VG10 Bitumen, VG20 Bitumen, VG30 Bitumen, and VG40 Bitumen. The higher the number, the harder the bitumen in the viscosity grading system. Classification of Viscosity Grade Bitumen The difference between penetration grade bitumen and viscosity grade bitumen is that the penetration grade classification is based on the Penetration value in 25 ◦C, while VG system is based on Viscosity value in both 60 ◦C and 135 ◦C that shows it is suitable for both low and high temperature so the bitumen behavior in different thermal conditions can be predicted well.Ĭheck out the bitumen penetration test and viscosity test of bitumen articles for more information about these two grading systems. What is the Difference Between Penetration Grade Bitumen and Viscosity Grade Bitumen? In the following, we will tell you more about the applications, descriptions, and specifications of each grade, and you will find the best VG bitumen that you need.Ĭheck Out the Different Types of Bitumen and Their Grades This kind of bitumen is more reliable than others due to its advantages and properties. Viscosity grade bitumen in four different types including VG10, VG20, VG30, and VG40 is the most widely used bitumen in India, which has been replaced by bitumen penetration grade according to the Indian Standard (IS:73).
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