By-Product Reductions

Concrete Industry Joint Sustainability

Initiative

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

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 RecycleReuse

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

Combustion& Grinding

35 – 40%

Calcining60 - 65%

Where does the CO2 come from?

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

MaterialReuse and Recycling

Supplemental Cementitious Materials

23 million metric tons diverted in 2007

Recycled Concrete

125 - 140 million Tons / year

Stapleton Airport DeconstructionPhoto courtesy of Recycled Materials Corp.

Reinforcing Steel

97% recycled

and 100%

recyclable

97%

Adaptive Reuse

199 S. Fifth Street Condominiums, Columbus, Ohio

Meyers + Associates ArchitectureImages 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• 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

• 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