What are the grades of PG bitumen?
Grades of PG bitumen serve as the cornerstone for constructing and maintaining durable, high-performance pavements. This guide embarks on a detailed exploration of how these grades are determined by specific temperature susceptibilities, addressing the challenges of both high-temperature rutting and low-temperature cracking. By selecting the appropriate grade, such as PG70 for moderate climates or PG58 for colder regions, engineers ensure pavements can withstand the rigors of their environment, enhancing longevity and reducing maintenance needs.