What Is Crumb Rubber Modified Bitumen CRMB 60? – Iran Bitumen Supply │ IBITMCO
Crumb Rubber Modified Bitumen CRMB 60 is a premium elastomer‑enhanced bitumen designed specifically for warm‑climate regions where pavements are exposed to high temperatures, heavy traffic loads, and continuous mechanical stress. Produced by blending high‑quality paving‑grade bitumen with finely ground crumb rubber from recycled tires, CRMB 60 offers exceptional resistance to rutting, deformation, and fatigue—making it one of the most durable binders available for high‑performance asphalt mixes. At Iran Bitumen Supply │ IBITMCO, CRMB 60 is engineered to deliver superior performance in regions where pavement temperatures rise significantly during the day. The rubber modification enhances the binder’s elasticity, increases its softening point, and improves its ability to withstand thermal stress. This results in asphalt surfaces that remain stable, flexible, and crack‑resistant even under intense heat and heavy axle loads. CRMB 60 is widely used as an advanced alternative to conventional bitumen in warm climates, offering longer pavement life, reduced maintenance costs, and improved ride quality.
Applications of Crumb Rubber Modified Bitumen CRMB 60
CRMB 60 is primarily used in high‑temperature, high‑stress road construction, where pavements must resist rutting and deformation. It is ideal for highways, expressways, and industrial roads in warm regions, where asphalt must maintain structural integrity despite elevated temperatures and heavy traffic. Its enhanced elasticity and improved adhesion to aggregates make CRMB 60 suitable for intersections, roundabouts, and steep gradients—areas where braking and turning forces are concentrated. In pavement rehabilitation, CRMB 60 helps restore flexibility and extend the lifespan of aged asphalt surfaces. CRMB 60 is also used in bridge decks, airport taxiways, and logistics zones, where pavements must endure continuous loading and temperature fluctuations. Its superior resistance to cracking and fatigue makes it a preferred binder for long‑lasting asphalt mixes in warm climates.
Properties of Crumb Rubber Modified Bitumen CRMB 60
CRMB 60 is characterized by its high softening point, increased viscosity, and excellent elastic recovery. The addition of crumb rubber significantly enhances the binder’s ability to resist deformation under high temperatures, making it ideal for warm‑climate applications. Its penetration value is lower than that of conventional bitumen, indicating a harder and more resilient binder. The elastic recovery of CRMB 60 ensures that the binder can stretch and return to its original shape without cracking, even under repeated loading cycles. These properties collectively contribute to improved pavement durability, reduced rutting, and enhanced resistance to thermal cracking.
Packing Options for CRMB 60
At Iran Bitumen Supply │ IBITMCO, Crumb Rubber Modified Bitumen CRMB 60 is available in several packaging formats to meet diverse project requirements. It can be supplied in new steel drums, Bitubags, or bulk shipments for large‑scale infrastructure projects. Bulk deliveries are typically made via bitumen carriers or tanker trucks, ensuring a continuous and efficient supply to asphalt plants.
Specification of CRMB-50-55-60