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COLD INPLACE RECYCLING USING FOAMED BITUMEN- STEP TOWARDS SUSTAINABLE ROAD CONSTRUCTION Technical Seminar, HQ CE (P) Dantak, Thimphu (Bhutan) 21 st Apr2014 K K RAZDAN Chief Engineer, Project Shivalik RAJEEV CHANDRA EE (Civil ), Project Shivalik B K DAS JE (Civil ), Project Shivalik

Cipr With Foamed Bitumen

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Foamed bitumen

Text of Cipr With Foamed Bitumen

  • COLD INPLACE RECYCLING USING FOAMED BITUMEN-

    STEP TOWARDS SUSTAINABLE ROAD CONSTRUCTION

    Technical Seminar, HQ CE (P) Dantak, Thimphu (Bhutan)

    21st Apr2014

    K K RAZDAN Chief Engineer, Project Shivalik

    RAJEEV CHANDRA EE (Civil ), Project Shivalik

    B K DAS JE (Civil ), Project Shivalik

  • 2 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    OUTLINE

    Pavement Recycling

    Foamed Bitumen

    Foamed Bituminous Mix

    Foamed Bitumen Mix Design

    Field Techniques

    Conclusion

  • 3 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    PAVEMENT RECYCLING

    What is Pavement recycling ?

    Process of removing distressed bituminous

    course for reuse in resurfacing or

    reconstructing a pavement.

    Hot In Place Recycling

    Cold In Place Recycling

    Pavement Recycling

    In - place

    recycling

    In - plant recycling

    Hot process

    Cold process

    Recycling is One of the Various rehabilitation

    Alternatives but it is the only sustainable technique

  • 4 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    PAVEMENT RECYCLING

    Why to Rehabilitate pavement by recycling ?

  • 5 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    PAVEMENT RECYCLING

    Cold in Place Recycling

    Existing Asphalt Pavement Milled

    (75 to 200 mm Depth)

    Addition of virgin aggregate if any

    Spreading of active filler

    Addition of recycling agent with

    recycler

    Compaction

    Foamed bituminous stabilisation in Hilly terrain

    Cold in Place recycling Train

  • 6 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    PAVEMENT RECYCLING

    Benefits

    Significant Structural Improvements

    Most Pavement Distress Treated

    Ride Quality Improved

    Minimal Air Quality Problems

    Contd.

    Application of Foamed Bitumen and recycling

    Cold Milling of distressed bituminous course

  • 7 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    PAVEMENT RECYCLING

    Benefits

    Conservation of aggregates and

    bitumen

    Conservation of energy and

    environment

    Temperature independent process

    Preservation of pavement geometrics

  • 8 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    OUTLINE

    Pavement Recycling

    Foamed Bitumen

    Foamed Bituminous Mix

    Mix Design Foamed Bitumen Mix

    Field Techniques

    Conclusion

  • 9 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FOAMED BITUMEN

    What is Foamed Bitumen ?

    Foamed bitumen is produced when a small quantity of cold water is

    injected into the hot bitumen

    The bitumen forms and expands

    Greater surface area of bitumen results in better coating of aggregate

    with very small quantity of Bitumen

    Schematic of Foaming process, (Wirtgen 2012)

  • 10 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FOAMED BITUMEN

    Source: Wirtgen (2012)

    Characterization of Foamed Bitumen

    Expansion Ratio (ER) & Half life (HLT)

  • 11 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    OUTLINE

    Pavement Recycling

    Foamed Bitumen

    Foamed Bituminous Mix

    Mix Design Foamed Bitumen Mix

    Field Techniques

    Conclusion

  • 12 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FOAMED BITUMINOUS MIX

    Using foamed bitumen as a binding agent in cold mix

    I. Reclaimed Asphalt Pavement(RAP)material

    II. Virgin aggregates (optional)

    III. Water

    IV. Active filler ( Cement or Lime)

    V. Foamed Bitumen

    Source: Wirtgen Manual, 2012

    12

    Foamed Bituminous Mix

  • 13 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FOAMED BITUMINOUS MIX

    40 mm-200 mm

    150 mm-300 mm

    New HMA

    Distressed HMA

    Untreated

    Aggregate

    Base

    Subgrade

    Original Pavement CIPR

    Foamed

    Bitumen

    Stabilised

    (FBS)Layer

    150 mm-450 mm

    40 mm-200 mm

    40 mm -150 mm

    150 mm-450 mm

    Source: Wirtgen Manual, 2012

    Use of foamed bituminous mix in pavement strengthening / rehabilitation

  • 14 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FOAMED BITUMINOUS MIX

    Application of Foamed bituminous mix

    Rehabilitation of damaged bituminous pavements by Cold in-place

    and in-plant Recycling technology

    Foamed Bituminous Stabilised layer as Binder or Base course with

    wearing course on top.

    Damaged Bituminous Layer

    NH-5 Chennai-Tada Road Pulverisation of HMA Layer by Recycler

    Compacted foamed bituminous

    stabilised layer

  • 15 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    OUTLINE

    Pavement Recycling

    Foamed Bitumen

    Foamed Bituminous Mix

    Mix Design of Foamed Bitumen Mix

    Field Techniques

    Conclusion

    Marshall Test of Foamed bituminous mix with RAP

    Foaming Equipment

  • 16 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    MIX DESIGN OF FOAMED BITUMINOUS MIX

    Foamed bituminous mix design flow chart

  • 17 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    OUTLINE

    Pavement Recycling

    Foamed Bitumen

    Foamed Bituminous Mix

    Mix Design Foamed Bitumen Mix

    Field Techniques

    Conclusion

    Animated diagram of in place process

    Animated diagram of cold milling

  • 18 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FIELD TECHNIQUE

    Phased Method For Foamed Bitumious Mix Stabilization:

  • 19 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FIELD TECHNIQUE

    Schematic diagram for Process of Foamed Bituminous Mix Stabilisation

  • 20 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    FIELD TECHNIQUE

    Integrated Method

    Recycling Train - (Water Tanker + Bitumen Tanker + Integrated Recycler

    Milling, pulverising, rejuvenating RAP with foamed bitumen, spraying cement / lime ,

    mixing and placing are performed in a single operation by the Integrated recycler

    Latest recycling train with integrated recycler cum slurry injector Recycling Train with Bitumen & Water Tanker

  • 21 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    OUTLINE

    Pavement Recycling

    Foamed Bitumen

    Foamed Bituminous Mix

    Mix Design of Foamed Bitumen Mix

    Field Techniques

    Conclusion

  • 22 Cold In Place Recycling using Foamed Bitumen Step towards Sustainable Road Construction

    Conclusion

    Hot mix asphalt (HMA) is 100% recyclable

    Existing bituminous layer should be recycled and

    stabilized in place or in plant to form the base or

    binder course

    Cold in place recycling with foamed bitumen is a

    effective, sustainable and green technique for

    rehabilitation of distressed pavement

    Use of milling and recycling of bituminous layers

    should be made mandatory

    Framing of guidelines and specifications for cold

    in place recycling technology for the Indian

    subcontinent

    Cold in place recycling in High altitude area

    Cores of foamed bituminous mix stabilised layers

  • THANK YOU

    Let us Step towards Green and Sustainable infrastructure for our next generation