MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD
Introduction: Today, the need for the neutralization of the environmental, economic, social, and other consequences of natural emergencies is becoming more and more urgent. One of such devastating disasters is forest fires, which are currently very widespread in the world. In most cases, after a fi...
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| Format: | Article |
| Language: | English |
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Saint Petersburg State University of Architecture and Civil Engineering
2022-09-01
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| Series: | Architecture and Engineering |
| Subjects: | |
| Online Access: | https://aej.spbgasu.ru/index.php/AE/article/view/678/239 |
| _version_ | 1811181622491348992 |
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| author | Anastasiya Lukina Mikhail Lisyatnikov Vladislav Martinov Olga Kunitskya Aleksandr Chernykh Svetlana Roschina |
| author_facet | Anastasiya Lukina Mikhail Lisyatnikov Vladislav Martinov Olga Kunitskya Aleksandr Chernykh Svetlana Roschina |
| author_sort | Anastasiya Lukina |
| collection | DOAJ |
| description | Introduction: Today, the need for the neutralization of the environmental, economic, social, and other consequences
of natural emergencies is becoming more and more urgent. One of such devastating disasters is forest fires, which are currently very widespread in the world. In most cases, after a fire, we are left with a forest that was partially exposed to fire. A burnt tree loses its immunity. As a result, an outbreak of various subcortical insect species, which infect healthy
trees as well, occurs in these territories. Such a forest is subjected to sanitary cutting. Purpose of the study: We aimed to determine the residual mechanical properties of raw wood to be used as a structural material. Methods: In the course of the study, we used destructive and non-destructive testing methods in respect of the mechanical properties of the material. Results: It was established that changes in the microstructure of wood correlate with its strength properties. The maximum decrease in the strength properties of wood was observed at the top end of the tree and amounted to 22.7% as compared
to the reference wood. The minimum decrease in the strength properties of post-fire wood was observed in the butt end of the tree and amounted up to 15.0%. In the middle part, a decrease in the strength properties of wood was up to 24.0%. |
| first_indexed | 2024-04-11T09:20:31Z |
| format | Article |
| id | doaj.art-7dd0893dd8c74c7f8c730cd0aa1fcd8a |
| institution | Directory Open Access Journal |
| issn | 2500-0055 |
| language | English |
| last_indexed | 2024-04-11T09:20:31Z |
| publishDate | 2022-09-01 |
| publisher | Saint Petersburg State University of Architecture and Civil Engineering |
| record_format | Article |
| series | Architecture and Engineering |
| spelling | doaj.art-7dd0893dd8c74c7f8c730cd0aa1fcd8a2022-12-22T04:32:13ZengSaint Petersburg State University of Architecture and Civil EngineeringArchitecture and Engineering2500-00552022-09-0173445210.23968/2500-0055-2022-7-3-44-52MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOODAnastasiya Lukina0Mikhail Lisyatnikov1Vladislav Martinov2Olga Kunitskya3Aleksandr Chernykh4Svetlana Roschina5Vladimir State University named after Alexander and Nikolay StoletovsVladimir State University named after Alexander and Nikolay StoletovsVladimir State University named after Alexander and Nikolay StoletovsYakut State Agricultural AcademySaint Petersburg State University of Architecture and Civil EngineeringVladimir State University named after Alexander and Nikolay StoletovsIntroduction: Today, the need for the neutralization of the environmental, economic, social, and other consequences of natural emergencies is becoming more and more urgent. One of such devastating disasters is forest fires, which are currently very widespread in the world. In most cases, after a fire, we are left with a forest that was partially exposed to fire. A burnt tree loses its immunity. As a result, an outbreak of various subcortical insect species, which infect healthy trees as well, occurs in these territories. Such a forest is subjected to sanitary cutting. Purpose of the study: We aimed to determine the residual mechanical properties of raw wood to be used as a structural material. Methods: In the course of the study, we used destructive and non-destructive testing methods in respect of the mechanical properties of the material. Results: It was established that changes in the microstructure of wood correlate with its strength properties. The maximum decrease in the strength properties of wood was observed at the top end of the tree and amounted to 22.7% as compared to the reference wood. The minimum decrease in the strength properties of post-fire wood was observed in the butt end of the tree and amounted up to 15.0%. In the middle part, a decrease in the strength properties of wood was up to 24.0%.https://aej.spbgasu.ru/index.php/AE/article/view/678/239woodfirestrengthmicrostructurebuilding structures. |
| spellingShingle | Anastasiya Lukina Mikhail Lisyatnikov Vladislav Martinov Olga Kunitskya Aleksandr Chernykh Svetlana Roschina MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD Architecture and Engineering wood fire strength microstructure building structures. |
| title | MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD |
| title_full | MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD |
| title_fullStr | MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD |
| title_full_unstemmed | MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD |
| title_short | MECHANICAL AND MICROSTRUCTURAL CHANGES IN POST-FIRE RAW WOOD |
| title_sort | mechanical and microstructural changes in post fire raw wood |
| topic | wood fire strength microstructure building structures. |
| url | https://aej.spbgasu.ru/index.php/AE/article/view/678/239 |
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