Properties of Penetration Bitumen Grade 15/25

Penetration bitumen grade 15/25, also referred to as paving grade bitumen, is characterized by its consistency and penetration depth. The numbers "15" and "25" correspond to the penetration value in tenths of a millimeter that a standard needle would penetrate the bitumen under specific conditions. This measurement gives insights into the hardness and stiffness of the bitumen.

• Penetration Value: With a penetration value of 15/25, this grade of bitumen strikes a balance between hardness and flexibility. It means that the bitumen offers moderate resistance to deformation while maintaining a certain degree of flexibility, making it ideal for various applications.
• Softening Point: Penetration bitumen grade 15/25 typically has a softening point in the range of 35 to 45°C. This characteristic ensures that the bitumen retains its properties under varying temperature conditions, which is vital for the durability of road surfaces.
• Viscosity: The viscosity of this bitumen grade is relatively higher compared to other grades, contributing to its stability during paving operations. This aspect aids in achieving a consistent asphalt mixture that can withstand traffic loads and environmental factors.

Benefits of Using Penetration Bitumen Grade 15/25

• Versatility: The balanced properties of this bitumen grade make it versatile for various applications, offering excellent performance in different scenarios.
• Durability: The inherent hardness and flexibility of this bitumen grade contribute to the longevity of paved surfaces and structures.
• Cost-Effectiveness: Its moderate penetration value makes it a cost-effective choice, striking a balance between performance and affordability.
• Ease of Application: The viscosity of penetration bitumen grade 15/25 ensures smooth and consistent application during construction, reducing the chances of defects.