Optimization of Building Deconstruction for DOD Facilities

Principle Investigators:Principle Investigators:

Dr. Angela LindnerDr. Angela LindnerUniversity of Florida, Environmental Engineering SciencesUniversity of Florida, Environmental Engineering Sciences

Brad GuyBrad GuyUniversity of Florida, Rinker School of Building University of Florida, Rinker School of Building ConstructionConstruction

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 Sequence2. Region IV Mentorship3. Life Cycle Assessment

UF Deconstruction Study

Three Deliverables:

1. Optimization Sequence2. Region IV Mentorship3. 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 siteTime of entire processSafety time and costsLabor skill and costs Equipment costsTransportation costsHazardous materials abatement, handling, and disposal costs

Non-hazardous wastes disposal costsQuantity of salvage for reuse/ remanufactureQuality 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 2nd 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 Sequence2. Region IV Mentorship3. 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 Sequence2. Region IV Mentorship3. 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

TransportationCosts: 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 Options2. Region IV Mentorship3. Life Cycle Assessment

… coordinated with the University of Louisville, Kentucky P2 Center, Ft. Knox, CERL, EPI, EPA, FPL, FDEP

Questions?