Is AC 30 Viscosity-Graded Bitumen Replacing 60/70 Penetration-Grade Bitumen for Good?
For decades, 60/70 penetration-grade bitumen has been a staple in road construction, valued for its cost-effectiveness and workability. However, the industry is witnessing a gradual shift toward AC 30 viscosity-graded bitumen, raising questions about its long-term viability as a replacement.…