Wood Innovations (Wood Products Markets, Wood Energy, Community Wood Energy and Wood Innovations Program, and Wood Education and Resource Center)

Using Thermal Modification Technology to Add Value to Small Diameter Logs from Underutilized Species

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2015-DG-11420004-082
In Progress
Wood Products Markets Grants (WPM)
University of Minnesota Duluth
Natural Resources Research Institute - CARTD
Wood Materials and Manufacturing Program
5013 Miller Trunk Highway
Duluth, MN 55811-1442
218-720-4248
https://www.nrri.umn.edu/
Thermal modification is an emerging, chemical-free technology that can upgrade low-value, small-diameter sawlogs. It involves the controlled heating of lumber in a low- or no-oxygen environment, imparting advantageous properties in most species of hardwoods and softwoods, including increased moisture resistance, improved dimensional stability, and increased resistance to degradation from rot-inducing fungi. This project will advance wood thermal-modification technology toward the development of high-performance and sustainable value-added wood products with dramatically improved dimensional stability, resistance to biodeterioration and weathering, extended service life, and reduced environmental impacts. Species of interest are white ash (Fraxinus americana), red maple (Acer rubrum), yellow-poplar (Liriodendron tulipifera), Eastern hemlock (Tsuga canadensis), and balsam fir (Abies balsamea).
Objectives are: 1. Define product performance benchmarks by identifying mechanical, physical, and biological durability performance targets for the selected thermally-modified materials. 2. Develop effective thermal-modification treatment schedules for each species. Species of interest are white ash (Fraxinus americana), red maple (Acer rubrum), yellow-poplar (Liriodendron tulipifera), Eastern hemlock (Tsuga canadensis), and balsam fir (Abies balsamea). 3. Transfer knowledge concerning performance benchmarks and thermal-modification treatments to stakeholders, including those in commercial and other building markets.
Minnesota, biodeterioration, dimensional stability, thermally modified wood, wood properties, thermal modification
US Forest Service Grant $ 236,303
Cooperative Funding $ 128,917
Total $ 365,220
No references are available at this time.
WERC Project Management Information System (WERC-PMIS)
Version 2.0.06 released on 7/15/2021. (Database last updated 10/19/2021 by Patrick Rappold.)
USDA Forest Service, State and Private Forestry, National Information Center