precastan eco-friendly option? jim lewis, ra, leed ap astm e60 sustainability october19, 2009
TRANSCRIPT
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Precast—An Eco-friendly option?Precast—An Eco-friendly option?
Jim Lewis, RA, LEED AP
ASTM E60 Sustainability October19, 2009
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LCA and PrecastLCA and Precast
• Why is an LCA important?
• What will PCI and the industry do with the results?
• Will we be transparent?
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“Green∙wash (gren’wosh’,-wôsh’) – verb: the act of misleading consumers regarding the environmental practices of a company or the environmental benefits of a product or service.”
“Green∙wash (gren’wosh’,-wôsh’) – verb: the act of misleading consumers regarding the environmental practices of a company or the environmental benefits of a product or service.”
Source: www.sinsofgreenwashing.org
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Truth?Truth?
• “Lighter, cleaner and more energy efficient than precast…”
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The processThe process
An credible LCA requires:• Good data:
o Manufacturer data (9 precasters);
o PCA reports with LCI data on cement and concrete; and
o U.S. LCI database (NREL)
• A good process:o ISO 14040o ISO 14044
• Transparency:o External review team; ando Experienced consultant.
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Credible partnerCredible partner
• LCA consultant– RFP creation– Lit review– Interview moderator
• Interviewed 3– Athena/Morrison Hershfield– PE Americas/Five Winds– CIRAIG
• External review team– Professor, Carnegie Mellon– Berkeley Labs– British Precast Association
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OutcomeOutcome
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Why an LCA?Why an LCA?
• To benchmark industry and back claims
• Requests—Owners
• Requirements—Congressional Caucus Coalition (hpbccc.org)
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Comparative analysisComparative analysis
• 3 partners
• Phase 1: Comparative analysis
• Per ISO, specific requirements for disclosed, comparative assertion LCAs.
• Data for all products must be treated equally and be of similar quality.
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Building scenariosBuilding scenarios
Envelope and abbreviation
Structure and abbreviation
Steel (S) Cast-in-place concrete (C)
Precast concrete (P)
Curtain wall (CW) S-CW C-CW P-CW
Brick and steel stud (S) S-S C-S P-S
Precast concrete (P) S-P C-P P-P
Insulated precast concrete (PI)
S-PI C-PI P-PI
Insulated precast concrete and brick veneer (PIB)
S-PIB C-PIB P-PIB
Under Ground Services - (Contain Liquid) - (Keep Liquid Out)
Precast concrete only, full LCA
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• New Eco-shape bottle uses 30% less plastic.
• The new bottle weighs 12.5 grams which is 15% less.
• Nestle estimates it will save 65 million lbs of plastic with Eco-shape.
• Cap was blue, which wasn’t recyclable.
Example: manufacturer changesExample: manufacturer changes
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What do we do with an LCA?What do we do with an LCA?
• Improve our processes
• Improve our products
• Improve structures
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Next stepsNext steps
• Phase 2-Building use
• Transportation products
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Questions?
Thank you for your time!