WHITE OR BLACK...• Composite or Semi-rigid Concrete Pavement • Drainable Pavements • Modular...

Andy Naranjo, P.E & Robert Lee, P.E.

WHITE OR BLACK

Apples to Oranges

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Note: 3 month statewide average bid price

CRCP D-GR HMA

$42.59 / SY

$68.69 / ton

$76.79 / ton

$16.89 / SY

Alternate Bidding

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Alternate Bid Process no longer valid per FHWA Pavement Design Guide in process of getting revised.

Sustainability

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Environment Society

Economy

Sustainability – Triple Bottom Line

Equitable

Bearable

Viable

Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.

Full Life Cycle Assessment (LCA) of Pavements

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Materials Construction Use End of Life

Maintenance

Extraction and Production Transportation

Landfilling

Traffic Delays

On Site Equipment

Oxidation Carbonation Lighting Albedo Fuel Efficiency

Recycling

Sustainable Pavement Activities

Project Design Considerations – Existing Conditions (Pavement and/or Soils) – ESAL’s – % Trucks – Congestion Relief – Safety – Phase Construction – Noise Abatement – Reduce Emissions – Acceleration and Deceleration

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Dedicated Lanes for Specific Traffic Needs

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Acceleration and Deceleration

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Composite Pavements

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Noise Abatement

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Reduce Emissions

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Sustainable Pavement Activities

Material Considerations – Minimize the use of virgin aggregates (RAP, RAS & RCA) – Reduce the transportation of materials (In-Place Recycling, Rubblization) – Reduce the use of virgin asphalt (RAP & RAS) – Utilize appropriate pavement preservation techniques and practices – Improve cement plant efficiency and reduce emissions – Improve HMA plant efficiency and reduce emissions (Cleaner Fuels & WMA) – Reduce cement content by using alternatives (Fly Ash, Slag) – Recycle washout water – Use SCM’s in concrete to improve durability – Use marginal materials strategically (two-lift concrete pavement, higher

recycled amounts in lower HMA lifts)

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Recycled Materials

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Crushed Concrete RAP

Fly Ash RAS

Reduce the Transportation of Materials

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HIR

Rubblization

2 Lift Concrete Pavement

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Lower Lift has high content of recycled materials or

aggregates not allowed in surface mixes.

Upper lift designed to have enhanced

properties.

Sustainable Pavement Activities

Pavement Design and Rehabilitation Alternatives – Asphalt Pavements

• New Asphalt (Perpetual Pavement) • Structural Asphalt Overlay • Bonded or Unbonded Concrete Overlay

– Concrete Pavements • New CRCP or JCP • Bonded or Unbonded Overlays • Structural Asphalt Overlay - Rubblization

– Utilizing Composite and Other Pavement Types • Composite or Semi-rigid Concrete Pavement • Drainable Pavements • Modular Pavements

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Perpetual Pavement & CRCP

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Concrete Pavement Life

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Whitetopping

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Drainable Pavements

Pre-cast Concrete Slab Construction

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Ultra-High Strength Asphalt

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HMA Over Steel Deck Bridge

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Roller Compacted Concrete

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Sustainable Pavement Activities

Construction Considerations – Reduce Fuel Consumption/Emissions – Reduce Noise (Plant Placement) – Accelerated Construction – Control Erosion, Runoff, and Sedimentation

Asphalt Pavement Construction – Achieve Target Density – Reduce Thermal Segregation – Provide Proper Joint Construction – Improve Smoothness

Concrete Pavement Construction – Protect Water Resources – Reduce the Use of Virgin Materials – Improve Ride Quality

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Combined Technologies

WMA with 15% RAP and 5% RAS

Over a 23% reduction in emissions

Accelerated Construction

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Notched Wedge Joint

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Pave-IR System

Ride Quality of Concrete Pavements

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Next Generation Concrete Surfaces

Optimized Graded Aggregate Concrete

Sustainable Pavement Activities

Maintenance and Preservation Techniques

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Asphalt Concrete Crack Filling/Sealing Joint/Crack Sealing Asphalt Patching Slab Stabilization / Slab Jacking Fog Seals Diamond Grinding / Grooving Chip Seals Partial and Full Depth Repairs Scrub Seals Dowel Bar Retrofit Microsurfacing Slot / Cross Stitching Ultra-Thin and Thin Asphalt Overlays Ultra-Thin and Thin Asphalt Overlays Hot/Cold-In-Place Recycling Ultra-Thin Bonded Wearing Course Ultra-Thin Bonded Wearing Course Bonded Concrete Overlays Bonded Concrete Overlay

Ultra-Thin Bonded Overlay

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Summary

Alternate Bidding & LCCA Sustainable Pavement Considerations

– Project Design – Material – Pavement Design & Rehabilitation – Construction – Maintenance & Preservation

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THANK YOU

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