What is AC-5 bitumen?
AC-5 bitumen is a low viscosity grade in the asphalt cement classification, carrying a target viscosity of 500 poises at 60°C. Suited to cold climates, AC-5 bitumen offers strong flexibility and resistance to low-temperature cracking, making it a reliable choice for regions with harsh winters.
Contractors select AC-5 bitumen for roads in cold countries and high-altitude regions where flexibility outweighs heat resistance as a priority. Its soft consistency helps AC-5 bitumen maintain workability during mixing and paving, delivering durable performance for road construction, asphalt mixes, and modified bitumen applications in cooler areas.
Black Rock Bitumen produces AC-5 bitumen under strict ASTM D3381 quality control, ensuring consistent viscosity, penetration, and dependable field performance. Supported by rigorous testing and reliable supply chains, our AC-5 bitumen provides contractors a trusted binder for cold-climate road construction and maintenance projects worldwide.



