Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification
This paper deals with comparative studies of bending behavior of untreated and modified European beech (<i>Fagus sylvatica</i> L.), European oak (<i>Quercus</i> spp.) and black locust (<i>Robinia pseudoacacia</i> L.). The modification of the woods included both am...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/12/8/1110 |
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| author | Herwig Hackenberg Mario Zauer Tobias Dietrich Katharina A. M. Hackenberg André Wagenführ |
| author_facet | Herwig Hackenberg Mario Zauer Tobias Dietrich Katharina A. M. Hackenberg André Wagenführ |
| author_sort | Herwig Hackenberg |
| collection | DOAJ |
| description | This paper deals with comparative studies of bending behavior of untreated and modified European beech (<i>Fagus sylvatica</i> L.), European oak (<i>Quercus</i> spp.) and black locust (<i>Robinia pseudoacacia</i> L.). The modification of the woods included both ammonia treatment and ammonia treatment in combination with mechanical densification. For each ammonia treatment, pure gaseous ammonia was used. The investigations were conducted by means of three-point bending tests. The bulk density increases significantly due to ammonia treatment and, furthermore, due to additional mechanical densification. The modulus of rupture is not affected by ammonia treatment. Additional mechanical densification, however, leads to a strong increase in the strength and stiffness. The deflection behavior changes in such a way that the ammonia treatment leads to an increase in deflection, and the additional mechanical densification further reinforces this trend. |
| first_indexed | 2024-03-10T08:47:59Z |
| format | Article |
| id | doaj.art-a529730909264cf4ad29fe88b03717b9 |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-10T08:47:59Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Forests |
| spelling | doaj.art-a529730909264cf4ad29fe88b03717b92023-11-22T07:43:41ZengMDPI AGForests1999-49072021-08-01128111010.3390/f12081110Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional DensificationHerwig Hackenberg0Mario Zauer1Tobias Dietrich2Katharina A. M. Hackenberg3André Wagenführ4Institute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, GermanyInstitute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, GermanyInstitute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, GermanyDepartment of Neurosurgery, University Hospital Mannheim, University of Heidelberg, 69047 Mannheim, GermanyInstitute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, GermanyThis paper deals with comparative studies of bending behavior of untreated and modified European beech (<i>Fagus sylvatica</i> L.), European oak (<i>Quercus</i> spp.) and black locust (<i>Robinia pseudoacacia</i> L.). The modification of the woods included both ammonia treatment and ammonia treatment in combination with mechanical densification. For each ammonia treatment, pure gaseous ammonia was used. The investigations were conducted by means of three-point bending tests. The bulk density increases significantly due to ammonia treatment and, furthermore, due to additional mechanical densification. The modulus of rupture is not affected by ammonia treatment. Additional mechanical densification, however, leads to a strong increase in the strength and stiffness. The deflection behavior changes in such a way that the ammonia treatment leads to an increase in deflection, and the additional mechanical densification further reinforces this trend.https://www.mdpi.com/1999-4907/12/8/1110gaseous ammonia treatmentbeech woodbending testdensificationmechanical propertiesdeflection |
| spellingShingle | Herwig Hackenberg Mario Zauer Tobias Dietrich Katharina A. M. Hackenberg André Wagenführ Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification Forests gaseous ammonia treatment beech wood bending test densification mechanical properties deflection |
| title | Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification |
| title_full | Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification |
| title_fullStr | Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification |
| title_full_unstemmed | Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification |
| title_short | Alteration of Bending Properties of Wood Due to Ammonia Treatment and Additional Densification |
| title_sort | alteration of bending properties of wood due to ammonia treatment and additional densification |
| topic | gaseous ammonia treatment beech wood bending test densification mechanical properties deflection |
| url | https://www.mdpi.com/1999-4907/12/8/1110 |
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