One of the main types of bitumen is VG Group and for that reason, I choose the above title, viscosity of and why vg 30 bitumen is used, for our discussion. As you know, it is mainly used in road construction and the importance of road construction is something clear. As the main communication networks, roads form the most important and sensitive public spaces of a city because a large percentage of the city's surface is dedicated to these spaces. They are the most important main element of the city's shape, the place of connection, and the connection of spaces with urban activities to each other. They are cultural symbols and finally, they are the most important tools of urban design. Roads in the minds of citizens are not only the lines that enable the communication and connection of different parts of the city but also depict the spaces that contain the most collective life daily. Especially since they have the largest share compared to other urban spaces. Roads should have their quality to distinguish them from their surroundings. These distinctions may be with the concentration of some activities along the road, a spatial quality that has certain characteristics, or a special material that the materials used in the street floors and facades of buildings can have. Since the quality of bitumen is very important as the raw material of asphalt, we go to VJ30 bitumen to check it, which is one of the famous types of bitumen.

viscosity of vg 30 bitumen

Regarding the viscosity of vg 30 bitumen, as it is clear from its title, we have to talk about the viscosity as the main aspect of this bitumen group. Viscosity is a fundamental property of bitumen that determines the behavior of a material at a given temperature or over a range of temperatures. The lower the temperature, the harder the bitumen. In the viscosity class, the viscosity test is measured at 60°C summer track temperature (Absolute Viscosity: 2400-3600) and 135°C temperature during asphalt mixing. The viscosity of bitumen is a fundamental property of bitumen that determines how bitumen behaves at a certain temperature and within a temperature range and is also an important index in measuring bitumen quality. We must consider that despite the wide range of applications that asphalt is used in and the great variety of weather and loading that asphalt is exposed to, most asphalts have had good performance over the years. However, it is possible to face the fracture of the asphalt. In some cases, these failures are caused by some mistakes in the construction process. If designers, contractors, and manufacturers are to use methods, equipment, construction techniques, and specifications to minimize the possibility of failure, a thorough understanding of the mechanisms that cause asphalt failure is necessary. The in-service performance of asphalt is significantly affected by the rheological or mechanical properties and to a lesser extent by the chemical structure of the bitumen. The chemical structure of bitumen is particularly important on road surfaces because it affects the rate of oxidation and consequently the rate of erosion by traffic. These factors, in turn, are affected by the changes caused by the effect of air, temperature, and water in bitumen.

why vg 30 bitumen is used

Now we want to talk about why vg 30 bitumen is used. To answer this question, it is better to know the VG bitumen group. This type of bitumen with suitable grade is used for road construction, asphalt, street paving, and sidewalk construction. Viscosity bitumen, which is the most widely used in the production of hot asphalt, belongs to the category of refinery bitumen that is produced through vacuum baton aeration in the distillation tower. This type of bitumen has a thermoplastic property, a property that keeps this material hard and rigid in cold weather and softens in warm weather. This property makes the combination of viscous asphalt with other materials more durable for road construction. This type of bitumen is now very popular in India and is preferred over penetration bitumen due to the accuracy used in its grading. It is used for construction of super-heavy asphalt pavements. These types of sidewalks must withstand high and significant traffic loads, so this type of grid is used more often. Road construction, building construction, insulation, and liquid bitumen making are the most industries that use this type of bitumen. VG30 bitumen is well suited to temperate climates and can be used as an alternative to bitumen with a permeability of 60/70.