Emerging opportunities for low-grade hardwood in glue-laminated timbers

John Jack Janowiak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The hardwood industry must deal with a log supply that has a diminished capacity to yield high-quality lumber. Average sawlog diameter continues to decrease. This has an adverse affect on the recovery of quality appearance lumber, despite the implementation of improved sawing methods. The industry is faced with the potential reduction of availability for select red and white oaks. Indications are that mixed eastern hardwood forests in the future may be less favorably disposed toward these resources. Inventory data indicate increasing sawtimber volume but are weighted toward hardwoods with lower market demand. New market opportunities are important with the development of user applications for under-utilized hardwood. Better and expanded markets for hardwood lumber is of interest to many sawmill managers. One emerging opportunity for using less-desirable hardwood is in the manufacture of glue-laminated (glulam) timbers. Hardwood-based glulam has been the subject of intense research to develop this technology for application to highway-rated bridge structures. Various study evaluations have been conducted with demonstration bridge construction projects. Results indicate that high-performance glulam products can be effectively manufactured with lower quality hardwood lumber. This paper provides an overview of recent investigations to study under-utilized red maple (Acer rubrum) lumber resources for the manufacture of structural glulam timbers.

Original languageEnglish (US)
Title of host publicationProceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets
PublisherForest Products Soc
Pages60-66
Number of pages7
StatePublished - 1997
EventProceedings of the 1997 Conference on Eastern Hardwoods, Resources, Technologies, and Markets - Harrisburg, PA, USA
Duration: Apr 21 1997Apr 23 1997

Other

OtherProceedings of the 1997 Conference on Eastern Hardwoods, Resources, Technologies, and Markets
CityHarrisburg, PA, USA
Period4/21/974/23/97

Fingerprint

glulam
Glues
Hardwoods
Timber
hardwood
Adhesives
lumber
Lumber
Acer
Industry
Acer rubrum
adhesives
manufacturing
markets
industry
sawlogs
sawing
new markets
Quercus alba
sawmills

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)
  • Engineering(all)

Cite this

Janowiak, J. J. (1997). Emerging opportunities for low-grade hardwood in glue-laminated timbers. In Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets (pp. 60-66). Forest Products Soc.
Janowiak, John Jack. / Emerging opportunities for low-grade hardwood in glue-laminated timbers. Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets. Forest Products Soc, 1997. pp. 60-66
@inproceedings{83de66154c7b42bd8a7022ed833a00f8,
title = "Emerging opportunities for low-grade hardwood in glue-laminated timbers",
abstract = "The hardwood industry must deal with a log supply that has a diminished capacity to yield high-quality lumber. Average sawlog diameter continues to decrease. This has an adverse affect on the recovery of quality appearance lumber, despite the implementation of improved sawing methods. The industry is faced with the potential reduction of availability for select red and white oaks. Indications are that mixed eastern hardwood forests in the future may be less favorably disposed toward these resources. Inventory data indicate increasing sawtimber volume but are weighted toward hardwoods with lower market demand. New market opportunities are important with the development of user applications for under-utilized hardwood. Better and expanded markets for hardwood lumber is of interest to many sawmill managers. One emerging opportunity for using less-desirable hardwood is in the manufacture of glue-laminated (glulam) timbers. Hardwood-based glulam has been the subject of intense research to develop this technology for application to highway-rated bridge structures. Various study evaluations have been conducted with demonstration bridge construction projects. Results indicate that high-performance glulam products can be effectively manufactured with lower quality hardwood lumber. This paper provides an overview of recent investigations to study under-utilized red maple (Acer rubrum) lumber resources for the manufacture of structural glulam timbers.",
author = "Janowiak, {John Jack}",
year = "1997",
language = "English (US)",
pages = "60--66",
booktitle = "Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets",
publisher = "Forest Products Soc",

}

Janowiak, JJ 1997, Emerging opportunities for low-grade hardwood in glue-laminated timbers. in Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets. Forest Products Soc, pp. 60-66, Proceedings of the 1997 Conference on Eastern Hardwoods, Resources, Technologies, and Markets, Harrisburg, PA, USA, 4/21/97.

Emerging opportunities for low-grade hardwood in glue-laminated timbers. / Janowiak, John Jack.

Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets. Forest Products Soc, 1997. p. 60-66.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Emerging opportunities for low-grade hardwood in glue-laminated timbers

AU - Janowiak, John Jack

PY - 1997

Y1 - 1997

N2 - The hardwood industry must deal with a log supply that has a diminished capacity to yield high-quality lumber. Average sawlog diameter continues to decrease. This has an adverse affect on the recovery of quality appearance lumber, despite the implementation of improved sawing methods. The industry is faced with the potential reduction of availability for select red and white oaks. Indications are that mixed eastern hardwood forests in the future may be less favorably disposed toward these resources. Inventory data indicate increasing sawtimber volume but are weighted toward hardwoods with lower market demand. New market opportunities are important with the development of user applications for under-utilized hardwood. Better and expanded markets for hardwood lumber is of interest to many sawmill managers. One emerging opportunity for using less-desirable hardwood is in the manufacture of glue-laminated (glulam) timbers. Hardwood-based glulam has been the subject of intense research to develop this technology for application to highway-rated bridge structures. Various study evaluations have been conducted with demonstration bridge construction projects. Results indicate that high-performance glulam products can be effectively manufactured with lower quality hardwood lumber. This paper provides an overview of recent investigations to study under-utilized red maple (Acer rubrum) lumber resources for the manufacture of structural glulam timbers.

AB - The hardwood industry must deal with a log supply that has a diminished capacity to yield high-quality lumber. Average sawlog diameter continues to decrease. This has an adverse affect on the recovery of quality appearance lumber, despite the implementation of improved sawing methods. The industry is faced with the potential reduction of availability for select red and white oaks. Indications are that mixed eastern hardwood forests in the future may be less favorably disposed toward these resources. Inventory data indicate increasing sawtimber volume but are weighted toward hardwoods with lower market demand. New market opportunities are important with the development of user applications for under-utilized hardwood. Better and expanded markets for hardwood lumber is of interest to many sawmill managers. One emerging opportunity for using less-desirable hardwood is in the manufacture of glue-laminated (glulam) timbers. Hardwood-based glulam has been the subject of intense research to develop this technology for application to highway-rated bridge structures. Various study evaluations have been conducted with demonstration bridge construction projects. Results indicate that high-performance glulam products can be effectively manufactured with lower quality hardwood lumber. This paper provides an overview of recent investigations to study under-utilized red maple (Acer rubrum) lumber resources for the manufacture of structural glulam timbers.

UR - http://www.scopus.com/inward/record.url?scp=0031295891&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031295891&partnerID=8YFLogxK

M3 - Conference contribution

SP - 60

EP - 66

BT - Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets

PB - Forest Products Soc

ER -

Janowiak JJ. Emerging opportunities for low-grade hardwood in glue-laminated timbers. In Proceedings of the Conference on Eastern Hardwoods, Resources, Technologies, and Markets. Forest Products Soc. 1997. p. 60-66