Ensuring the binder is stiff enough to resist rutting during hot summers.

The MS-26 Asphalt Binder Handbook , published by the Asphalt Institute, is a comprehensive manual dedicated solely to asphalt binders (bitumen). It serves as a practical, technical guide that brings together decades of research, testing methods, and material science. Asphalt binder properties, testing, and application. asphalt institute ms-26 pdf

The evolution from older grading systems to the Superpave PG system. Ensuring the binder is stiff enough to resist