The effect of wood boiling in water on its moistening, swelling and modulus of elasticity upon longitudinal compression tests
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2016, Vol 94, Issue
Abstract
The effect of wood boiling in water on its moistening, swelling and modulus of elasticity upon longitudinal compression tests. The effect of wood boiling in water on the moisture content, swelling and compression strength as well as on modulus of elasticity at compression was examined. Hot water treatment times were 15, 30 or 60 minutes. The highest increase in moisture content to 50% was found for beech and birch wood in the first 15 minutes of treatment. Prolonged treatment times provided moisture content about 90% for both species. The black locust wood, due to its structure and anatomy, exhibited lowest susceptibility to moistening – 17% after 60-minute boiling. An intense swelling both in radial and tangential directions was observed for beech and birch. The swelling found for black locust did not exceed 3% regardless of the direction. The hot water treatment resulted in a significant decrease in compression strength and modulus of elasticity at compression (up to 50%) both for beech and birch, while those for black locust were ca. 40%.
Authors and Affiliations
Ewa Dobrowolska, Mariusz Mamiński, KRZYSZTOF J. KRAJEWSKI, Magdalena Muchorowska
Keywords
Related Articles
- EP ID EP356023
- DOI -
- Views 75
- Downloads 0
Profitability change trends in the wood sector in Poland in the years 2008-2014
The study presents profitability change trends in the wood sector enterprises in Poland. The comparative analysis was conducted in three industries: wood, furniture and pulp and paper. The changes have been presented in...
The maximum moisture content of lime wood impregnated with Paraloid B-72 solution in butyl acetate
The maximum moisture content of lime wood impregnated with Paraloid B-72 solution in butyl acetate. Lime wood because of its particularly favorable machining characteristics was used, among other things, in artistic prod...
Ein Beitrag zur Geschichte des Papiers
Ein Beitrag zur Geschichte des Papiers. Wenn das heutige Papier, so aus zerstoßenen und gestampften Leinwands-Lappen verfertiget wird, erfunden worden?....Im nachfolgenden Artikel zitieren die Autoren ausführlich die Lit...
Pre-treatment of polyester-based veneers
Pre-treatment of polyester-based veneers. The surface of polyethylene terephthalate (PET) veneers was pre-treated by diffuse surface barrier discharge (DSBD) plasma at atmospheric pressure in various processing gases to...
Исследования эффекта усиления минерального основания для деревянных полов посредством шлифования и грунтования.
Исследования эффекта усиления минерального основания для деревянных полов посредством шлифования и грунтования. На долговечность деревянных полов влияет много факторов, среди них важное значение имеет прочность минераль...