Flexible Pavements

Areas of R&D/Consultancy/Core Activities

Achievements and Future PlanAreas of R&D

  • Design of Flexible & Composite Pavements for Roads and Airfields
  • Additive for Beneficiation of Soil (Inorganic Additives, Organic Additive, Nano Materials, Bio- enzymes, Geopolymers, Biopolymers)
  • Mineral Aggregates: Characterization and Beneficiation
  • Industrial Wastes and Artificial Aggregates:Use in Bituminous mixes
  • Organic Binders (Bitumen, Rubber & Polymer Modified Binders, Cut Back Bitumen and Emulsion)
  • Additives for Bituminous Binders (Anti-stripping Agents, Antioxidants, Polymers and Warm Mix Additives)
  • Construction and Maintenance Technologies (Recycling, Micro Surfacing Slurry Sealing and Ready to Use Patching Mixes)
  • Cold Mix and Warm Mix Technologies for Construction and Maintenance

Consultancy/Core Activities

  • Design of Flexible and Composite Pavement and Overlays for Roads, Airfields and Parking Areas
  • Investigations for Failure of the Flexible & Composite Pavement and Remedial Measure
  • Evaluation of Pavement Materials for Construction and Maintenance of Flexible & Composite Pavement
  • Feasibility Studies of Use of Waste and Marginal Materials
  • Supervision of Construction and Quality Control of Flexible Pavement
  • Setting up of Laboratories & Industrial Units for Bitumen, PMB and Emulsion
  • Customized Training Programs in the area of Engineering Materials, Design, Construction and Maintenance
  • Workshop of New Technologies
  • Preparation of New Standards and Specifications
  • Evaluation of Design and Specifications by Accelerated Pavement Testing Facilities
  • Pilot Studies of New Technologies and Materials
  • Design of Airfield Pavements
  • Design, Construction and Maintenance of Rural Roads

Equipment, Facilities/Software in the Division

  • Accelerated Pavement Testing Facility: This is a National Facility. This is used for faster evaluation of materials, design and specifications.
  • Wheel Tracking System: This equipment is used for evaluation of the rutting in bituminous layers at different temperature.
  • Creep Testing System: This equipment is used to investigate creep behavior and also for the determination of stiffness modulus of bituminous mixes.
  • Beam Fatigue Testing System: This equipment is used for study of the Fatigue Behavior of Bituminous Mixes.
  • Brook-Field Viscometer: This equipment is used for measurement of the viscosity of bituminous binders including modified binders.
  • Capillary Viscometer: This equipment is used for measuring of the absolute viscosity of the bituminous binders.
  • Pilot Plant for Manufacture of Modified Bitumen and Emulsions: This equipment is used for production of the modified bitumen, modified emulsions and different grades of conventional bitumen emulsions.
  • Equipments for Design of Micro-surfacing: A view of various equipments used for design of micro-surfacing
  • Gyratory Compactor: This equipment is used for preparation of the Marshal specimens for various testing purposes.
  • Bitumen Testing Equipments: View of penetration testing, softening point and durability testing
  • Automatic Marshal Testing Machine.
  • Bending Beam Rheometer.
  • Dynamic Sheer Rheometer
  • Direct Tension Tester
  • Presure Aging Vessel
  • Presser Ageing Vessel for long term ageing of bitumen
  • Apparatus for Zeta Potential
  • Binder drainage test and permeability test for persons concrete

Systems and Technologies Developed by the Division

  • Polybit A and Polybit B. Technology
  • Elastomeric Bitumen Technology
  • Improved Crumb Rubber Modified Bitumen
  • Ready to Use Patching Mixes
  • Cold Mix Technology
  • Repair of Cracks on Bridge Deck Wearing Coats