CRMB 50 | Crumb Rubber Modified Bitumen for Heavy Duty Pavements
Overview of CRMB 50
Crumb Rubber Modified Bitumen 50 (CRMB 50) is a high-performance modified asphalt binder developed by blending selected penetration grade bitumen with recycled crumb rubber derived from end-of-life tires, using controlled thermal and mechanical processes.
This advanced modification enhances the elastic behavior, deformation resistance, and fatigue performance of the binder, making CRMB 50 a reliable solution for heavy-duty pavements exposed to high traffic loads and elevated temperatures.
CRMB 50 is supplied as a finished binder from bitumen production units and is later used in asphalt plants to manufacture long-lasting, rubber-modified asphalt mixtures.
Performance Benefits of CRMB 50
Crumb Rubber Modified Bitumen 50 is engineered to outperform conventional penetration grade bitumen in demanding conditions:
High Elastic Recovery
Improves pavement flexibility and resistance to thermal and load-induced cracking.Superior Rutting Resistance
Maintains structural integrity under heavy axle loads and high pavement temperatures.Extended Fatigue Life
Enhances resistance to repeated traffic stresses, reducing premature pavement failure.Reduced Aging and Oxidation
Slows binder hardening over time, improving long-term pavement performance.Sustainable Engineering Solution
Incorporates recycled rubber, supporting environmentally responsible infrastructure development.
Applications of CRMB 50
CRMB 50 is widely used in pavement structures where durability and performance are critical, including:
Highways and expressways
Roads with heavy truck and freight traffic
Urban arterial roads and intersections
Airport runways and taxiways
Industrial zones, logistics centers, and parking facilities
Pavement overlays in hot climate regions
Handling and Storage Guidelines
Crumb Rubber Modified Bitumen 50 should be handled following standard hot bitumen safety practices.
Use appropriate personal protective equipment (PPE)
Store in clean, dry, and well-ventilated tanks or containers
Avoid contamination with water or foreign materials
Maintain recommended storage temperatures to preserve binder properties
Packaging and Supply Options
CRMB 50 is available in multiple packaging formats to meet different project requirements:
Bulk tanker trucks for large-scale infrastructure projects
Steel drums for export shipments and smaller volumes
CRMB 50 vs Conventional Bitumen
Unlike standard penetration grade bitumen, CRMB 50 offers enhanced elasticity and resistance to deformation, allowing pavements to withstand higher stresses without cracking or rutting.
CRMB 50 is selected when conventional bitumen reaches its performance limits under heavy traffic and hot climate conditions.
Pricing and Commercial Information
Pricing for CRMB 50 depends on order quantity, delivery terms, and destination.
For technical documentation, quotations, and order placement, please contact our sales team.
Conclusion
CRMB 50 represents a robust, performance-driven asphalt binder designed for modern road infrastructure projects where durability, sustainability, and long-term performance are essential. By combining elastic behavior with proven resistance to heavy traffic and high temperatures, CRMB 50 provides a cost-effective and reliable alternative to conventional binders in demanding applications.
Table of Contents
Technical Specifications
| Property | CRMB 50 | Test Method |
|---|---|---|
| Penetration at 25°C (0.1 mm) | ≤ 70 | IS 15462:2004 |
| Softening Point (Ring & Ball), °C (Min) | 50 | IS 15462:2004 |
| Fraass Breaking Point, °C | — | IS 15462:2004 |
| Flash Point (COC), °C (Min) | 220 | IS 15462:2004 |
| Elastic Recovery at 15°C, % (Min) | 50 | IS 15462:2004 |
| Separation (Difference in Softening Point), °C (Max) | 4 | IS 15462:2004 |

