Petra Oil’s Crumb Rubber Modified Binders (CRMB) are high-performance bituminous binders formulated by blending high-quality base bitumen with finely ground recycled rubber derived from end-of-life tires. This eco-friendly product not only supports sustainable infrastructure development but also delivers exceptional durability, elasticity, and resilience under demanding road conditions.

CRMB enhances the physical and rheological properties of conventional bitumen, resulting in better resistance to rutting, thermal cracking, and fatigue. It is particularly suitable for roads exposed to a combination of heavy traffic loads, climatic variations, and frequent start-stop movement, making it a reliable solution for highways, city roads, intersections, and even specialized applications like race tracks and bus lanes.

Key Specifications:

• Type: Crumb Rubber Modified Bitumen
• Base Polymer: Recycled crumb rubber from scrap tires
• Standard Compliance: IS 15462:2019 / IRC SP:53
• Grades Available: CRMB 50, CRMB 55, CRMB 60 (customizable based on project requirement)
• Softening Point: Typically ranges between 50–65°C depending on grade
• Viscosity & Elastic Recovery: Significantly improved over conventional bitumen

Main Applications of CRMB:

• Urban Intersections & Roundabouts: Enhanced resistance to surface deformation caused by slow-moving, high-pressure traffic.
• Highways & Expressways: Prevents rutting under repetitive loading and fluctuating temperatures.
• Bus Lanes & Heavy Vehicle Corridors: Withstands the unique stress profile from heavy public transport systems.
• Eco-Conscious Infrastructure Projects: Ideal for green construction initiatives promoting circular economy.

Benefits of Crumb Rubber Modified Binders:

• Superior Elastic Recovery: Rubber content improves binder flexibility, reducing the risk of thermal and fatigue cracking.
• Extended Pavement Life: Resists rutting and wear even under intense traffic stress, reducing maintenance costs.
• Eco-Friendly & Sustainable: Supports recycling initiatives and reduces environmental impact through reuse of waste tires.
• Improved Skid Resistance: Enhances road surface texture, providing safer driving conditions, especially in wet weather.
• Adaptable to Climatic Zones: Performs well in both hot and moderately cold regions.