Optimization of Building Deconstruction for DOD Facilities Principle Investigators: Dr. Angela Lindner University of Florida, Environmental Engineering Sciences Brad Guy University of Florida, Rinker School of Building Construction

When you’re done playing, put your stuff away…

In 1995, the US Army estimated 250 million board feet of lumber were available in its WWII wood buildings slated for demolition.

Base Commander Time on building site Time of entire process Safety time and costs Labor skill and costs Equipment costs Transportation costs Quantity of salvage for reuse/remanufacture Executive Order 13101: Greening the Government Health and safety Lead Based Paint Asbestos OSHA, EPA, State regulations Landfill capacity Disposal Costs

UF Deconstruction Study Three Deliverables: 1. Optimization Sequence 2. Region IV Mentorship 3. Life Cycle Assessment

UF Deconstruction Study Three Deliverables: 1. Optimization Sequence 2. Region IV Mentorship 3. Life Cycle Assessment

What is Deconstruction?  Building disassembly to maximize the recovery of reusable and recyclable materials in a cost- effective, environmentally sound, and safe manner.  Pragmatic enabling of reuse/recycling of land, infrastructure, buildings, materials

Project Metrics Time on building site Time of entire process Safety time and costs Labor skill and costs Equipment costs Transportation costs Hazardous materials abatement, handling, and disposal costs Non-hazardous wastes disposal costs Quantity of salvage for reuse/ remanufacture Quality or value of salvage for reuse/ remanufacture Project Site: Ft. McClellan

Scenario 1 In situ deconstruction of building in structural sequence

Scenario 2 Panelization of 2 nd floor as one element and parallel deconstruction of two building halves

Scenario 3 Mechanical panelization of building then deconstruction of individual elements

Scenario 4 In situ deconstruction and panelization of major elements in sequence

UF Deconstruction Study Next Deliverable: 1. Optimization Sequence 2. Region IV Mentorship 3. Life Cycle Assessment Commander

Region IV Mentorship  Deconstruction Computer Model  Team w/ University of Louisville  Ft. Bragg, Ft. Rucker, others  “Deconstruction and Materials Reuse” Conference, May 2003  EPA, FDEP, UBMA, CIB, CERL

UF Deconstruction Study Final Deliverable: 1. Optimization Sequence 2. Region IV Mentorship 3. Life Cycle Assessment

Definition of Life Cycle Assessment (LCA) “…examining the environmental releases and impacts of a specific product by tracking its development from a raw material, through its production and to eventual disposal.” U.S. Environmental Protection Agency

LCA Example: Pine & Fir Siding Raw Materials Energy Water Coproducts Air Water Solid Waste Other Old Growth Forest Harvesting Wood Siding Manufacture Product Distribution, Use, Reuse Disposal Transportation Denotes beneficial reuse of salvaged materials Transportation Costs: Labor, Capital, etc… Savings

Proposed Tasks Develop a Database Region IV surplus facilities’ characteristics Information on the deconstruction process  Types and sequence of activities, total amounts of salvage, total hours of hand/mechanical labor, total costs, etc.

Proposed Tasks continued… Identify viable reuse options New “markets” for salvaged materials Conduct LCA on virgin vs salvaged materials use in viable reuse applications Economic, environmental, social impact analysis

Research Needs from DOD Information concerning all Region IV facilities available for deconstruction Contacts with this information Meetings at the sites if necessary Feedback! Especially during the Scoping phase Input/output data during Data Collection phase Participation in regular progress report reviews

UF Deconstruction Study Review of Deliverables: 1. Optimization Options 2. Region IV Mentorship 3. Life Cycle Assessment … coordinated with the University of Louisville, Kentucky P2 Center, Ft. Knox, CERL, EPI, EPA, FPL, FDEP

Questions?