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Review of moisture measuring technologies used in the solid wood products industry

https://library.fpinnovations.ca/fr/permalink/fpipub39749
Auteur
Garrahan, Peter A.
McRae, David
Date
2000
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
of commonly employed equipment and procedures for evaluation of moisture content in solid-wood products
Auteur
Garrahan, Peter A.
McRae, David
Collaborateur
Sundance Forest Industries Ltd. Alberta Government. Department of Alberta Innovation and Science
Date
2000
Genre du document
Research report
Description physique
35 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Drying
Moisture content
Série
W-3047
Localisation
Edmonton, Alberta
Langue
English
Résumé
This study involved the on-site evaluation of commonly employed equipment and procedures for evaluation of moisture content in solid-wood products. Specifically, a DC-resistance and two RF-based moisture meters were evaluated. The main overall objective was to identify procedures or develop information to allow more accurate final MC estimates to be determined. Lodgepole pine lumber of 25 and 40 mm thicknesses was employed for the test Material was tested at three time intervals spanning from the completion of drying to approximately 30 hours after drying. Meter readings were compared against oven-dry moisture contents. In most situations the moisture meters employed tended to underestimate final moisture content with the error varying from close to zero up to about 3 percent. The errors observed seemed to be consistent for a given test. This opens the possibility of employing site-specific correction factors to obtain better estimates of oven-dry moisture content. Problems may still arise when comparing mill results of moisture tests against those performed elsewhere by customers and end users.
SEASONING
Moisture measurement
Documents
Moins de détails

L'eau et la durabilité : fiche technique sur la performance de la construction à ossature de bois

https://library.fpinnovations.ca/fr/permalink/fpipub42416
Collaborateur
Forintek Canada Corp.
Canada Mortgage and Housing Corporation (CMHC)
Société centrale d'hypothèques et de logement (SCHL)
Date
April 2000
Genre du document
Pamphlet
Domaine
Sustainable Construction
Collaborateur
Forintek Canada Corp.
Canada Mortgage and Housing Corporation (CMHC)
Société centrale d'hypothèques et de logement (SCHL)
Date
April 2000
Genre du document
Pamphlet
Description physique
4 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Moisture content
Wood decay
Série
Fact Sheet on Wood in Construction = Fiche technique sur le bois dans la construction
Localisation
Québec, Québec
Langue
French
Résumé
Moisture - Control
Moisture - Prevention
Buildings - Houses - Moisture content
Decay - Prevention
Building construction - Design
Documents
Moins de détails

Manuel de séchage des placages

https://library.fpinnovations.ca/fr/permalink/fpipub38869
Auteur
Feihl, A.O.
Date
January 1984
Genre du document
manual
Domaine
Wood Manufacturing & Digitalization
personnel. It covers the following subjects: veneer moisture content, moisture detectors, drying process
Auteur
Feihl, A.O.
Date
January 1984
Genre du document
manual
Description physique
116 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Moisture content
Manual
Série
E-3136
Localisation
Ottawa, Ontario
Langue
French
ISBN
ISBN-0-86488-506-8
Résumé
Ce manuel assemble les renseignements existants sur la technologie du séchage des placages. Il est destiné aux opérateurs de séchoirs, aux contremaîtres et aux gérants. Il est conçu spécialement pour les usines de l'Est du Canada mais contient des références aux essences et aux méthodes de séchage couramment utilisées dans l'Ouest canadien. Les sujets suivants sont abordés dans ce manuel: humidité du placage, hydromètres, processus de séchage, types de séchoirs, opération et entretien des séchoirs, incendies, pollution et défauts des placages causés par le séchage.
Dry Kilns
Drying Process
Drying Technology
Veneers - Drying - Handbooks, manuals, etc.
Veneers - Moisture content
Forintek Canada Corp. - Publications
Documents
Moins de détails

Moisture content correction tables for the resistance-type moisture meter : eastern species

https://library.fpinnovations.ca/fr/permalink/fpipub38195
Auteur
Pfaff, Frank
Garrahan, Peter A.
Date
August 1984
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
humidit pour hygrom&res 51 r&sistance Moisture Content Correction Tables for the Resistance-Type
Auteur
Pfaff, Frank
Garrahan, Peter A.
Date
August 1984
Genre du document
Research report
Description physique
42 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Moisture content
Measurement
Série
Special Publication SP-511E
E-629
Localisation
Ottawa, Ontario
Langue
English
ISBN
ISBN-0-86488-511-1
Résumé
Correction factors are provided for the Delmhorst resistance-type moisture meters equipped with 2-pin insulated electrodes. These factors allow the operator to adjust the meter reading for a wood temperature range of -40 degree centigrade to 50 degree centigrade. Factors are provided for 12 softwood species and 14 hardwood species.
Moisture Meter
Eastern Species
Moisture Content Correction Tables
Forintek Canada Corp. - Publications
Documents
Moins de détails

Assessment of accuracy of species-temperature correction tables for resistance-type moisture meters

https://library.fpinnovations.ca/fr/permalink/fpipub744
Auteur
Mackay, J.F.Graham
Date
May 1984
Édition
37057
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
f o r moisture content, lumber had t o be overdried r e s u l t i n g i n unnecessary extension
Auteur
Mackay, J.F.Graham
Date
May 1984
Édition
37057
Genre du document
Research report
Description physique
10 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Moisture content
Lumber drying
Série
W-267
Localisation
Vancouver, British Columbia
Langue
English
Résumé
Moisture determination, Electrical
Documents
Moins de détails