Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods
The purpose of this study was to evaluate the effects of an industrial heat treatment (ThermoWood) based on changes in the strength properties, density, and color of spruce (Picea abies) and pine (Pinus sylvestris) woods. Samples were subjected to heat treatment processes at 212 °C for a duration of...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2015-07-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_5159_Icel_Industrial_Heat_Treatment_Woods |
| _version_ | 1818543221650751488 |
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| author | Bilgin Icel Gurcan Guler Onur Isleyen Abdullah Beram Muhammed Mutlubas |
| author_facet | Bilgin Icel Gurcan Guler Onur Isleyen Abdullah Beram Muhammed Mutlubas |
| author_sort | Bilgin Icel |
| collection | DOAJ |
| description | The purpose of this study was to evaluate the effects of an industrial heat treatment (ThermoWood) based on changes in the strength properties, density, and color of spruce (Picea abies) and pine (Pinus sylvestris) woods. Samples were subjected to heat treatment processes at 212 °C for a duration of 120 min. The results showed that the applied process caused a 2.56 to 6.12% decrease in density. Dimensional stability was considerably improved, with ASE values of 58% and 52% for spruce and pine, respectively. The color became darker after treatment. The process caused a significant (p<0.05) reduction (8 to 42%) for all investigated mechanical properties at a specific moisture level (12%). However, the mechanical properties of wood are closely related to its moisture content, and heat-treated wood is less hygroscopic than untreated wood. It was found that, after long-term acclimatization, heat-treated samples had almost half the equilibrium moisture content of control samples. Because the changes that occurred after this heat treatment are irreversible, it is possible that ThermoWood has lower equilibrium moisture content than untreated wood. Therefore, this should be taken into account when investigating the mechanical design values of heat-treated wood. |
| first_indexed | 2024-12-11T22:32:30Z |
| format | Article |
| id | doaj.art-e9aa86f66a4a426396628985d9ce2aab |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-11T22:32:30Z |
| publishDate | 2015-07-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-e9aa86f66a4a426396628985d9ce2aab2022-12-22T00:48:06ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-07-011035159517310.15376/biores.10.3.5159-5173Effects of Industrial Heat Treatment on the Properties of Spruce and Pine WoodsBilgin Icel0Gurcan Guler1Onur Isleyen2Abdullah Beram3Muhammed Mutlubas4Suleyman Demirel University; TurkeySuleyman Demirel University; Turkey Suleyman Demirel University, Faculty of Forestry, Department of Forest Products Engineering, Isparta, Turkey; Turkey Suleyman Demirel University, Faculty of Forestry, Department of Forest Products Engineering, Isparta, Turkey; Turkey Suleyman Demirel University, Faculty of Forestry, Department of Forest Products Engineering, Isparta, Turkey; TurkeyThe purpose of this study was to evaluate the effects of an industrial heat treatment (ThermoWood) based on changes in the strength properties, density, and color of spruce (Picea abies) and pine (Pinus sylvestris) woods. Samples were subjected to heat treatment processes at 212 °C for a duration of 120 min. The results showed that the applied process caused a 2.56 to 6.12% decrease in density. Dimensional stability was considerably improved, with ASE values of 58% and 52% for spruce and pine, respectively. The color became darker after treatment. The process caused a significant (p<0.05) reduction (8 to 42%) for all investigated mechanical properties at a specific moisture level (12%). However, the mechanical properties of wood are closely related to its moisture content, and heat-treated wood is less hygroscopic than untreated wood. It was found that, after long-term acclimatization, heat-treated samples had almost half the equilibrium moisture content of control samples. Because the changes that occurred after this heat treatment are irreversible, it is possible that ThermoWood has lower equilibrium moisture content than untreated wood. Therefore, this should be taken into account when investigating the mechanical design values of heat-treated wood.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_5159_Icel_Industrial_Heat_Treatment_WoodsIndustrial Heat treatmentSprucePineWoodThermowood |
| spellingShingle | Bilgin Icel Gurcan Guler Onur Isleyen Abdullah Beram Muhammed Mutlubas Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods BioResources Industrial Heat treatment Spruce Pine Wood Thermowood |
| title | Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods |
| title_full | Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods |
| title_fullStr | Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods |
| title_full_unstemmed | Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods |
| title_short | Effects of Industrial Heat Treatment on the Properties of Spruce and Pine Woods |
| title_sort | effects of industrial heat treatment on the properties of spruce and pine woods |
| topic | Industrial Heat treatment Spruce Pine Wood Thermowood |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_5159_Icel_Industrial_Heat_Treatment_Woods |
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