Nondestructive Evaluation of Wood

Nondestructive Evaluation of Wood
Author: Forest Service (U S )
Publisher: Government Printing Office
Total Pages: 176
Release: 2015
Genre: Business & Economics
ISBN: 9780160928871

Nature's engineering of wood through genetics, wind, and weather creates a wide variability in wood as a material. Consequently, manufacture and users of wood products are frequently frustrated in dealing with the forest resource. Manufacturers sometimes argue that wood is difficult to consistently process into quality products because of the wide range of properties that exist in this raw material. Users of wood products can be equally frustrated with the performance variability found in finished products. Nondestructive evaluation (NDE) technologies have contributed significantly toward eliminating the cause of these frustrations. NDE technologies have been developed and are currently used in lumber and veneer grading programs that result in engineered materials that have consistent well-defined performance characteristics. This brief volume explores some of the processes that are used to manufacture wood, including green wood technology and provides a bit of history to wood production and its uses too. Other products that may interest you from the US Forest Service can be found at this link: https://bookstore.gpo.gov/agency/819

Equilibrium Moisture Content of Wood in Outdoor Locations in the United States and Worldwide

Equilibrium Moisture Content of Wood in Outdoor Locations in the United States and Worldwide
Author: William Turner Simpson
Publisher:
Total Pages: 18
Release: 1998
Genre: Lumber
ISBN:

With relative humidity and temperature data from the National Oceanic and Atmospheric Administration, the average equilibrium moisture content for each month of the year was calculated for 262 locations in the United States and 122 locations outside the United States. As an aid for storage of kiln-dried lumber, a graph is presented for determining the reduction in equilibrium moisture content that results from heating air in an enclosed storage space above the temperature of the outside air.

Specific Gravity and Other Properties of Wood and Bark for 156 Tree Species Found in North America

Specific Gravity and Other Properties of Wood and Bark for 156 Tree Species Found in North America
Author: Patrick D. Miles
Publisher:
Total Pages: 40
Release: 2009
Genre: Specific gravity
ISBN:

Much information is available for specific gravity and other properties of wood and bark, but it is widely scattered in the literature. This paper compiles information for estimation of biomass for 156 tree species found in North America for use in national forest inventory applications. We present specific gravities based on average green volume as well as 12 percent moisture content volume for calculation of oven-dry biomass. Additional information is included on bark thickness, bark voids, and bark percentages by species and green and dry weight of wood and bark. --

Drying Hardwood Lumber

Drying Hardwood Lumber
Author: Joseph Denig
Publisher:
Total Pages: 148
Release: 2000
Genre: Lumber
ISBN:

Drying Hardwood Lumber focuses on common methods for drying lumber of different thickness, with minimal drying defects, for high quality applications. This manual also includes predrying treatments that, when part of an overall quality-oriented drying system, reduce defects and improve drying quality, especially of oak lumber. Special attention is given to drying white wood, such as hard maple and ash, without sticker shadow or other discoloration. Several special drying methods, such as solar drying, are described, and proper techniques for storing dried lumber are discussed. Suggestions are provided for ways to economize on drying costs by reducing drying time and energy demands when feasible. Each chapter is accompanied by a list of references. Some references are cited in the chapter; others are listed as additional sources of information.