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IMPROVED SPRUCE TIMBER UTILIZATION

Objective

The overall objectives are :

- to allocate the right raw material to the right industry;
- when a certain raw material is specified, to produce the optimal mix of
products which fulfil the end-users' requirements; and
- to improve the quality of solid timber products in terms of mechanical
properties and moisture-related straightness.

The whole project is divided into two sub-projects, A and B, where the output and
conclusions of sub-project B will be integrated at the end into the output of sub-
project A.

The main objectives of sub-project A are as follows :

- on the basis of stand characteristics and measurements on individual trees,
predict the interior properties of trees and the quality of potential products
in relation to the end-user requirements, thereby facilitating improved
utilisation in terms of value recovery;
- to provide integrated models and conversion simulation tools and to
demonstrate how these can be implemented in industrial planning systems;
- to evaluate the potential benefits from modifications in conversion processes
in the whole forestry-wood chain as a result of such implementation.

The main objectives of sub-project B are as follows :

- to increase our knowledge of the mechanisms which cause distortion in
timber with a view to linking round log parameters to end-product
performance, i.e. propensity to distortion due to drying and wetting
(simulating the real conditions), and thereby to develop and verify models for
the mechanisms of moisture-induced distortion based on measurements of
wood properties and other raw material parameters including some
industrially-relevant parameters;
- to provide a scientific basis for the future development of improved drying
regimens or other modification techniques in order to improve (in the longer
term) the production of straight and moisture-stable timber products;
- to provide a new basis for grading trees, logs and battens in green conditions
by using models which can predict the yield of acceptable straight dried
timber based on parameters measured on-line in a sawmill.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

SWEDISH UNIVERSITY OF AGRICULTURAL SCIENCES
Address
P.o. Box 7054
750 07 Uppsala
Sweden

Participants (4)

ALBERT-LUDWIG-UNIVERSITÄT FREIBURG
Germany
Address
Werderring, 6
79085 Freiburg Im Breisgau
ECOLE NATIONALE DU GENIE RURAL, DES EAUX ET DES FORETS - ENGREF
France
Address
Rue De Girardet, 14 - Cs 4216
54042 Nancy Cedex
I.N.R.A. - CENTRE DE RECHERCHE DE NANCY
France
Address

54280 Champenoux
TECHNICAL RESEARCH CENTRE OF FINLAND
Finland
Address
P.o. Box 1806
02044 Espoo