Transcript Longevity & Durability 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.

Longevity &
Durability
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
5. By-product reduction
2. Safety/protection
6. Aesthetics
3. Financial responsibility
7. Societal connectivity
4. Operational continuity
8. Longevity/durability
This presentation
discusses Social Value #5:
Longevity/Durability
Longevity/Durability
What it means
Concrete is
one of the
most durable,
long-lasting
building
products
available.
Longevity/Durability
What it means
From
homes
to
high
rises
Longevity/Durability
What it means
Lower
maintenance
requirements
Less
construction
traffic delays
More
productivity
Structures still in use
Pentagon, Washington, DC
Miami City Hall
Safe
Infrastructure
Rainbow Bridge
Idaho - 1933
Morris Sheppard Dam
Waco,TX - 1941
Longevity/Durability
Pavements
Longevity of Concrete Highways
I-10 west of Los Angeles
–
Originally built in 1946 as
part of US Route 66
– Ground in 1965, 1984,
and 1997
– After 63 years, still
handling 240,000
vehicles/day…
Adaptive Reuse
199 S. Fifth Street Condominiums, Columbus, Ohio
Meyers + Associates Architecture
Images courtesy of Meyers + Associates and ESTO Photography
Minimal
maintenance
and repair
during
service
life
Ease of Repairs Extends
Service Life
• Cabrillo Bridge, San
Diego, CA – on
National Register of
Historic Places - Built
in 1914
• Renovated in 2007
Durability is the
Denominator
Typical car =
11,760 lbs of CO2
per year
Concrete Driveway (24’ x 50’) =
5,880 lbs (initally)
Considering a 30 year life span –
under 200 lbs per year
Durable is Sustainable
•
Optimal material utilization– less
waste from replacement
• Lower maintenance costs and
construction congestion
• Lower total cost of ownership
• Long life = smaller eco-footprint
For Now and Future Generations
• Building structures and infrastructure that will
last with minimal maintenance, and preserving
historic structures, are critical to the health and
well-being of future generations.
• Durable, long-lasting structures minimize the
impact on our dwindling natural resources.
• Preserving historic structures is not only cost
and resource effective, it is a way for us to
maintain a living connection to our history.
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