The best type of bitumen for road construction is typically Penetration Grade Bitumen, specifically 60/70 grade. This type of bitumen offers a balance between flexibility and durability, making it ideal for asphalt pavements in various climates. It provides good adhesion to aggregates and resistance to deformation under heavy traffic. For areas with extreme temperatures, modified bitumen, such as polymer-modified bitumen (PMB), is often used to enhance performance and longevity.
