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Concrete Industry Joint Sustainability Initiative. By-Product Reductions. The Joint Sustainability Initiative (JSI) is a multi-association effort of the Concrete Structures Industry supply chain to take unified and integrated action on Sustainable Development .
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Concrete Industry Joint Sustainability Initiative By-Product Reductions
The Joint Sustainability Initiative (JSI) is a multi-association effort of the Concrete Structures Industrysupply chain to take unified and integrated action on Sustainable Development
JSI members have signed a joint agreement committing to act on 9 Declarations. Declaration #4 addresses 8 Social Values of Concrete Structures http://www.concretejsi.com/about/declaration.HTM
Declaration #4: “Our integrated thinking will focus on the following Social Values provided by Concrete Structures”: 1. Resource efficiency 5. Longevity/durability 2. Safety/protection 6. By-product reduction 3. Financial responsibility 7. Aesthetics 4. Operational continuity 8. Societal connectivity
This presentation discusses Social Value #6:By-Product Reductions
By-product ReductionsWhat it Means Reduce Reuse Recycle
By-product Reductions Benefits • Virgin material savings • Embodied energy reduction • Emission reductions • Performance enhancement • Reduction of land-filled waste • Cost reductions
Big Industry Footprint After water, concrete is most widely used material in the world 2x more than plastic, steel, aluminum, and wood, combined CO2 from cement mfg: U.S. < 1.5%
How Big Are We? U.S. EPA, “Quantifying Greenhouse Gas Emissions from Key Industrial Sectors in the United States, 2008 report
For More Information http://www.epa.gov/sectors/performance.html http://www.epa.gov/sectors/pdf/greenhouse-report.pdf
Cement Manufacturing Photo Courtesy of Titan America, LLC
Where does the CO2 come from? Combustion & Grinding 35 – 40% Calcining 60 - 65%
Manufacturing Improvement Energy Savings 2.3 million homes / year
Manufacturing Improvements Alternative Materials 45%of plants
Manufacturing Improvements Alternate Fuel Usage 65%of plants
Alternate Fuels 58 million
U.S. Cement Manufacturing Improvement Goals By 2020* • Reduce carbon dioxide - 10% • Reduce energy use – 20% • Reduce cement kiln dust – 60% • Implement EMS at plants - 75% (* from a 1990 benchmark for a unit of production) www.cement.org/smreport08
U.S. Ready Mixed Concrete Production Goals • By 2020 • Embodied energy: 20% reduction • Carbon footprint: 20% reduction • Potable water: 10% reduction • Waste: 30% reduction • Recycled content: 200% increase
Supplemental Cementitious Materials 23 million metric tons diverted in 2007
Recycled Concrete 125 - 140 million Tons / year Stapleton Airport Deconstruction Photo courtesy of Recycled Materials Corp.
Adaptive Reuse 199 S. Fifth Street Condominiums, Columbus, Ohio Meyers + Associates Architecture Images courtesy of Meyers + Associates and ESTO Photography
New Developments Wind turbines at California Portland Cement New cement formulations Alternative energy research “Smog eating” concrete
Why it’s important to next Generations • Extends the use of finite material resources, energy, and land • Reduces emissions and landfill waste • Supports all 3 aspects of the Triple Bottom Line
Thank You • 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 • Tile Roofing Institute • Tilt-Up Concrete Association • American Concrete Institute • American Shotcrete Association • American Society of Concrete Contractors • Architectural Precast Association • Cast Stone Institute • Concrete Foundations Association • Concrete Reinforcing Steel Institute • Concrete Sawing & Drilling Association • Interlocking Concrete Pavement Institute • International Concrete Repair Institute