Current issue: 53(1)

Under compilation: 53(2)

Impact factor 1.683
5-year impact factor 1.950
Silva Fennica 1926-1997
1990-1997
1980-1989
1970-1979
1960-1969
Acta Forestalia Fennica
1953-1968
1933-1952
1913-1932

Articles containing the keyword 'longitudinal shrinkage'.

Category: Article

article id 5231, category Article
Matti Kärkkäinen, Michel Marcus. (1985). Shrinkage properties of Norway spruce wood. Silva Fennica vol. 19 no. 1 article id 5231. https://doi.org/10.14214/sf.a15410

Norway spruce (Picea abies (L.) H. Karst.) boards sawn from outer layers of logs were sampled from a sawmill in Northern Finland and another in Southern Finland. Test pieces 20 mm x 20 mm x 20 mm were selected according to maximum variation in growth ring width. Volumetric and longitudinal shrinkage from a soaked to a dry condition were measured. It was found that wood density correlated positively with the volumetric shrinkage but negatively with the longitudinal shrinkage. Dry density was a better predictor than basic density. With constant density and an increase in growth ring width, there was increased shrinkage, especially in samples from Northern Finland. Besides this, when density was kept constant, the shrinkage was higher in the spruce wood from Southern Finland than from Northern Finland.

The PDF includes a summary in Finnish.

  • Kärkkäinen, ORCID ID:E-mail:
  • Marcus, ORCID ID:E-mail:

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