Resource Efficiency

The Concrete Joint Sustainability Initiative is a multi-association effort of the Concrete Industry supply chain to take unified and integrated action for Sustainable Development

Concrete JSI members have signed a joint agreement committing to act on 9 Declarations. Declaration #4 addresses 8 Social Values of Concrete Structures http://www.sustainableconcrete.org

Declaration #4:

“Our integrated thinking will focus on the following Social Values provided by Concrete Structures”: 1. Resource efficiency 2. Safety/protection 3. Financial responsibility 4. Operational continuity 5. By-product reduction 6. Aesthetics 7. Societal connectivity 8. Longevity/durability

Social Value: Resource Efficiency What it means Concrete Structures over their lifecycle are efficient users of energy, water, land and other resources

Resource Efficiency

Materials Resources

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Durability

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Recycled Content Energy Resources

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Locally acquired

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Structures and pavement Water resources

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Pervious pavements

Resource Efficiency

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Cost savings by not finishing floors, walls, etc.

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Structure, air barrier and finish in one integrated system Easily repairable Photo courtesy of L. M Schofield

Materials Acquisition Impacts Resource Impact Index Concrete Aggregate Quarrying Limestone Quarrying 1.00

1.50

Steel 2.25

Wood Iron Ore Mining Boreal Timber Harvesting Coastal Timber Harvesting 2.50

3.25

Source: Natural Resources Canada

Integrated Design = Success!

Design Flexibility / Optimization 4,000 psi vs 9,000 psi concrete?

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Additional 3,120 rentable square feet

 

16% less cement 1,730 yards less concrete

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3,400 tons less weight Reduce CO2 by 220,000 lbs

Multi-tasking Material Ryerson Conservation Center, Lake County, IL 60,000 gallon concrete cistern provides both Fire Protection & Thermal Storage

Energy Resources Did you know?

Average distance between manufacturing and project site is only

14.2 miles?

Energy Resource Efficiency Concrete roads:

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Minimize urban heat island effects

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Have lower rolling resistance

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Require less fuel during construction

Resource Efficiency Concrete bridges and other infrastructure



Durability

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Accelerated construction schedule

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Reduced maintenance

Land and Water Resources

Land and Water Resources

Resource Efficiency Reduction of floor and wall finishes

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Improved thermal comfort

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Reduced sound transmission

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No food source for mold growth

Cradle to Cradle 125+ million tons/year

Looking Forward

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Integral waterproofing

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Photo-catalytic concrete

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Nanocements

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Seawater-based cement and aggregates

Looking Forward

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New supplemental cementitious materials, such as rice husk ash

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Light-transmitting concrete

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Carbonation research

Summary

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Fundamental to sustainability for future generations

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Durability and efficiency affects both maintenance and replacement

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Extends beyond construction materials to include water, land use, and energy

Thank You

American Coal Ash Association American Concrete Institute American Concrete Pipe Association American Shotcrete Association American Society of Concrete Contractors Architectural Precast Association American Segmental Bridge Institute Cast Stone Institute Concrete Reinforcing Steel Institute Concrete Sawing & Drilling Association Concrete Foundations Association Expanded Shale, Clay and Slate Institute Interlocking Concrete Pavement Institute International Concrete Repair Institute National Concrete Masonry Association National Precast Concrete Association National Ready Mixed Concrete Association Portland Cement Association Post-Tensioning Institute Precast/Prestressed Concrete Institute RMC Research and Education Foundation Silica Fume Association Slag Cement Association Tile Roofing Institute Tilt-Up Concrete Association Wire Reinforcement Institute