Overview – Bitumen Penetration 40/50
Penetration Grade 40/50 Bitumen is a semi-hard grade of bitumen, specifically formulated for road construction, paving, and waterproofing in cooler climates. The “40/50” designation refers to the penetration value, measured by how deeply a standard needle penetrates the bitumen under controlled conditions. With a penetration range between 40 and 50 tenths of a millimeter, this grade offers a balanced performance between stiffness and flexibility, making it a preferred choice for durable asphalt mixes in heavy-traffic areas and cold regions.
Technical Classification and Testing
The consistency of Bitumen 40/50 is determined using the standard penetration test (ASTM D5), where a 100g needle penetrates the sample for 5 seconds at 25°C. The result – in tenths of a millimeter – defines the bitumen’s hardness. Lower values (like 40/50) indicate a harder bitumen with higher resistance to deformation and cracking, making it ideal for pavements exposed to low temperatures and dynamic loads.
Applications and Advantages
Penetration Grade 40/50 Bitumen is widely used in the production of hot mix asphalt for highways, airport runways, and industrial paving. It delivers superior bonding, long-term durability, and resistance to water and thermal stress. At iranbitumen.net, we offer high-purity Bitumen 40/50 directly from our ISO-certified facility, packaged in export-friendly options like drums, jumbo bags, and bitutainers. If you’re looking to buy Bitumen for your next project or seeking a reliable bitumen dealer to export bitumen globally, iranbitumen.net is your trusted partner.