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35 records – page 1 of 4.

Advanced Quality and In-Service Condition Assessment Procedures for Mass Timber and Cross-Laminated Timber Products

https://research.thinkwood.com/en/permalink/catalogue2558
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Organization
Forest Products Laboratory
Mississippi State University
Country of Publication
United States
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Keywords
Non-Destructive Evaluation
Bond Performance
Monitoring Techniques
Serviceability
Quality Assurance
Research Status
In Progress
Notes
Project contacts are Frederico França at Mississippi State University and Robert J. Ross at the Forest Products Laboratory
Summary
With the rapid development of CLT manufacturing capacity around the world and the increasing architectural acceptance and adoption, there is a current and pressing need regarding adhesive bond quality assurance in manufacturing. As with other engineered glued composites, adhesive bondline performance is critically important. Bondline assessment requires technology in the form of sensors, ultrasonics, load cells, or other means of reliable machine evaluation. The objectives of this cooperative study are to develop quality assurance procedures for monitoring the quality of mass timber and CLT during and after manufacturing and to develop assessment techniques for CLT panels in-service.
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Assessing Life-Cycle Environmental Impacts of CLT Mass Timber Buildings in the U.S. Northeast Region

https://research.thinkwood.com/en/permalink/catalogue2535
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Organization
Forest Products Laboratory
The Nature Conservancy
University of Washington
Consortium for Research on Renewable Industrial Materials
Atelierjones
Country of Publication
United States
Material
CLT (Cross-Laminated Timber)
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
GHG emission reduction
Research Status
In Progress
Notes
Project contact is Hongmei Gu at the Forest Products Laboratory
Summary
The FPL team is in charge of developing a full comparative LCA study for three multiple-story mass timber buildings and their concrete alternatives in the U.S. Northeast region, with Boston as the point location. Using these three comparative LCAs, this research will determine the GHG emissions reduction potential from mass timber use in the building sector for the U.S. region. This may increase potential for growth in wood utilization, timber harvest, and forest management practices through the market demands.
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Blast-Resistant Testing for Loaded Mass Timber Structures

https://research.thinkwood.com/en/permalink/catalogue843
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Walls
Organization
Forest Products Laboratory
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Mechanical Properties
Keywords
Exterior Walls
Blast Loads
Protection
Research Status
In Progress
Summary
Opening new markets for the use of CLT that can capitalize on the strength and speed of construction allowed by the technology creates the best opportunity for wood product market growth. One such market is the Department of Defense (DoD), representing an estimated 148 million board feet of additional lumber production. Wood products have been significantly under-represented in the DoD construction market because of their perceived performance in blast conditions. The objectives of this project are to develop a design methodology and to demonstrate performance for exterior bearing CLT walls used in buildings subject to force protection requirements. This methodology should be published by U.S. Army Corp of Engineers – Protective Design Center to be used by engineers for designing CLT elements to withstand blast loads as determined by code requirements and specific project conditions.
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Comparisons of the Production Standards for Cross Laminated Timber (CLT) in Europe versus USA

https://research.thinkwood.com/en/permalink/catalogue1705
Year of Publication
2016
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Young, Timothy
Barbu, Marius
Hindman, Daniel
Weissensteiner, Josef
Tudor, Eugenia
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
Europe
North America
Manufacturing
Standards
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4412-4419
Summary
Cross laminated timber (CLT) is a new engineered wood product that has experienced rapid growth and market acceptance for residential and non-residential construction in western and central Europe. Potential exists for rapid market adoption in North America if manufacturing capacities are developed...
Online Access
Free
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Compartment Fire Testing of a Two-Story Mass Timber Building

https://research.thinkwood.com/en/permalink/catalogue1825
Year of Publication
2018
Topic
Fire
Application
Wood Building Systems

Control of Solar-Driven Moisture Diffusion in Cross-Laminated Timber Walls with Absorptive Claddings

https://research.thinkwood.com/en/permalink/catalogue717
Topic
Design and Systems
Moisture
Material
CLT (Cross-Laminated Timber)
Application
Walls
Author
Glass, Samuel
Organization
Forest Products Laboratory
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Design and Systems
Moisture
Keywords
Moisture Content
Absorptive Claddings
US
Climates
Research Status
In Progress
Summary
Prior research showed that inward moisture diffusion from absorptive claddings such as brick veneer, stucco, or manufactured stone veneer can be significant in wood-frame walls. The inward migration of moisture is greatest when the cladding is heated by the sun after being wetted by rain. The same phenomenon is likely to occur in CLT walls with these types of claddings (Fig. 1). General guidance on CLT building envelope design was published in chapter 10 of the U.S. CLT Handbook, which cautions that inward diffusion of moisture from absorptive claddings could lead to moisture accumulation in CLT based on initial computer modeling predictions. Experimental measurements are needed to provide a stronger basis for design of CLT exterior walls. The objectives of the project are to measure moisture conditions in CLT walls with absorptive claddings under exposure to simulated rain and sun and to identify design and construction practices that minimize the risk of moisture accumulation in different U.S. climates.
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Cradle-To-Gate Life-Cycle Assessment of Laminated Veneer Lumber (LVL) Produced in the Pacific Northwest Region of the United States

https://research.thinkwood.com/en/permalink/catalogue783
Year of Publication
2017
Topic
Environmental Impact
Material
LVL (Laminated Veneer Lumber)
Author
Bergman, Richard
Alanya-Rosenbaum, Sevda
Organization
Forest Products Laboratory
Year of Publication
2017
Country of Publication
United States
Format
Report
Material
LVL (Laminated Veneer Lumber)
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
US
Cradle-to-Gate
Production
Life-Cycle Inventory
Life-Cycle Impact Assessment
Language
English
Research Status
Complete
Summary
The goal of this study was to update life-cycle assessment (LCA) data associated with laminated veneer lumber (LVL) production in the Pacific Northwest (PNW) region of the United States from cradle-to-gate mill output. The authors collected primary mill data from LVL production facilities per Consortium on Research for Renewable Industrial Materials (CORRIM) Research Guidelines. Comparative assertions were not a goal of this study.
Online Access
Free
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Cradle-To-Gate Life-Cycle Assessment of Laminated Veneer Lumber (LVL) Produced in the Southeast Region of the United States

https://research.thinkwood.com/en/permalink/catalogue782
Year of Publication
2017
Topic
Environmental Impact
Material
LVL (Laminated Veneer Lumber)
Author
Bergman, Richard
Alanya-Rosenbaum, Sevda
Organization
Forest Products Laboratory
Year of Publication
2017
Country of Publication
United States
Format
Report
Material
LVL (Laminated Veneer Lumber)
Topic
Environmental Impact
Keywords
Life-Cycle Impact Assessment
US
Production
Life-Cycle Assessment
Cradle-to-Gate
Language
English
Research Status
Complete
Summary
The goal of the present study was to develop life-cycle impact assessment (LCIA) data associated with gate-to-gate laminated veneer lumber (LVL) production in the southeast (SE) region of the U.S. with the ultimate aim of constructing an updated cradle-to-gate mill output life-cycle assessment (LCA). The authors collected primary (survey) mill data from LVL production facilities per Consortium on Research for Renewable Industrial Materials (CORRIM) Research Guidelines. Comparative assertions were not a goal of the present study.
Online Access
Free
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Cross-Laminated Timber Roof Panels at the Promega Corporation Facility: Documenting Installation and Monitoring In-Service Moisture Conditions

https://research.thinkwood.com/en/permalink/catalogue801
Year of Publication
2013
Topic
Serviceability
Moisture
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Glass, Samuel
Romanin, Jennifer
Schumacher, Jim
Spickler, Kris
Organization
Forest Products Laboratory
Year of Publication
2013
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Serviceability
Moisture
Keywords
Moisture
Temperature
Installation Process
Sensors
Language
English
Research Status
Complete
Summary
The USDA Forest Products Laboratory (FPL) has, for the past two years, been assisting in removing technical barriers to the use of CLT and trying to develop interest in the United States for its utilization. Coincidentally, Promega Corporation, a leader in providing innovative solutions and technical support to the life sciences industry, is currently constructing a new facility in Fitchburg, Wisconsin, that features CLT. This is the first large-scale commercial utilization of CLT in the United States using CLT manufactured in North America. As with any new building system, it is important for the design and construction community to have information on how CLT is installed and how it performs. The objectives of this research are twofold: (1) to document the CLT installation process with photography and video and (2) to install sensors in the CLT panels and collect data on in-service moisture and temperature conditions.
Online Access
Free
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Development of a Ready-To-Assemble (RTA) Tornado Safe Room Constructed from Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue716
Topic
Design and Systems
Wind
Material
CLT (Cross-Laminated Timber)
Application
Rooms
Author
Black, Todd
Falk, Bob
Organization
Forest Products Laboratory
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Rooms
Topic
Design and Systems
Wind
Keywords
Ready-To-Assemble
Tornadoes
Lateral Loads
Research Status
In Progress
Summary
Over the past several decades, the market for ready-to-assemble (RTA) products has grown significantly. RTA kitchen cabinets and furniture are commonplace because they can be shipped flat and assembled on site, which has greatly reduced shipping costs associated with an otherwise voluminous product. Packaged with necessary hardware and instructions, these RTA products are typically easy to assemble and fool proof. The development of a standardized safe room using CLT that is ready to assemble, easy to ship, and quick to fabricate on site would not only increase the level of safety for our population but also increase the market opportunity for these engineered wood products. This research is an extension of research by the USDA Forest Service, Forest Products Laboratory, to develop a do-it-yourself safe room constructed from wood that can be incorporated into existing housing and that utilizes commodity wood products. The objective of this project is to develop a RTA tornado safe room and shelter from CLT for use in existing and new residential and commercial construction.
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35 records – page 1 of 4.