Resource Efficiency Joint Sustainability Initiative.

Post on 23-Dec-2015

227 views 2 download

Tags:

transcript

Resource Efficiency

Joint Sustainability

Initiative

The Joint Sustainability Initiative (JSI) is a multi-association effort

of the Concrete Industry

supply chain to take unified and integrated action for

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. By-product reduction

2. Safety/protection 6. Aesthetics

3. Financial responsibility 7. Societal connectivity

4. Operational continuity 8. Longevity/durability

What it means

Concrete Structures over their lifecycle are efficient

users of energy, water, land and other resources

Social Value: Resource Efficiency

Materials ResourcesDurabilityRecycled Content

Energy ResourcesLocally acquiredStructures and pavement

Water resourcesPervious pavements

Resource Efficiency

Cost savings by not finishing

floors, walls, etc. Structure, air

barrier and finish in one integrated

system Easily repairable

Resource Efficiency

Photo courtesy of L. M Schofield

Materials Acquisition Impacts

Resource Impact Index

Concrete

Aggregate QuarryingLimestone Quarrying

1.001.50

Steel Iron Ore Mining 2.25

Wood

Boreal Timber HarvestingCoastal Timber Harvesting

2.503.25

Source: Natural Resources Canada

Integrated Design = Success!

4,000 psi vs 9,000 psi concrete?

Additional 3,120 rentable square feet

16% less cement 1,730 yards less concrete 3,400 tons less weight

Reduce CO2 by 220,000 lbs

Design Flexibility / Optimization

Ryerson Conservation Center, Lake County, IL

60,000 gallon concrete cistern provides both

Fire Protection & Thermal Storage

Multi-tasking Material

Energy Resources

Did you know? Average distance

between manufacturing and project site is only

14.2 miles?

Concrete roads: Minimize urban

heat island effects

Have lower rolling resistance

Require less fuel during construction

Energy Resource Efficiency

Concrete bridges and other infrastructure

Durability Accelerated

construction schedule

Reduced maintenance

Resource Efficiency

Land and Water Resources

Land and Water Resources

Reduction of floor and wall finishes

Improved thermal comfort

Reduced sound transmission

No food source for mold growth

Resource Efficiency

125+ million tons/year

Cradle to Cradle

Integral waterproofing

Photo-catalytic concrete

Nanocements Seawater-based

cement and aggregates

Looking Forward

New supplemental cementitious materials, such as rice husk ash

Light-transmitting concrete

Carbonation research

Looking Forward

Fundamental to sustainability for future generations

Durability and efficiency affects both maintenance and replacement

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

Summary

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