European Journal of Wood and Wood Products最新文献

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Compressive performance of laminated bamboo columns with glass fiber reinforced polymer 玻璃纤维增强聚合物叠合竹柱的抗压性能
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-22 DOI: 10.1007/s00107-025-02237-9
Zhen Wang, Haitao Li, Rodolfo Lorenzo, Chaokun Hong
{"title":"Compressive performance of laminated bamboo columns with glass fiber reinforced polymer","authors":"Zhen Wang,&nbsp;Haitao Li,&nbsp;Rodolfo Lorenzo,&nbsp;Chaokun Hong","doi":"10.1007/s00107-025-02237-9","DOIUrl":"10.1007/s00107-025-02237-9","url":null,"abstract":"<div><p>This paper presents an investigation to check the feasibility of reinforcing laminated bamboo columns through the application of glass fiber reinforced polymer (GFRP) composites, with particular emphasis on examining the influence of slenderness ratio on the performance of GFRP reinforced columns. A comprehensive experimental program was conducted involving eighteen full-scale columns, which were categorized into six distinct slenderness groups. External GFRP wrapping was employed to enhance compression strength, as well as to restrain the outward local buckling deformation of the laminated bamboo column. Experimental observations revealed both compression and buckling failure modes. The results demonstrated that the implementation of GFRP reinforcement with a minimal volume fraction significantly enhanced both the load-carrying capacity and deformation ability of the laminated bamboo columns. A consistent inverse relationship was observed between the slenderness ratio and the ultimate load-carrying capacity of the specimens. To further validate and extend the experimental findings, a methodology for modeling the column specimens was developed using ABAQUS software, incorporating nonlinear analysis to simulate the behavior. The numerical simulations exhibited strong correlation with experimental results, thereby confirming the reliability and effectiveness of the proposed methods for potential similar engineering applications.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regional assessment of mold growth risk in light wood-framed wall envelope based on meteorological data-driven and neural network model 基于气象数据驱动和神经网络模型的轻型木结构围护结构霉菌生长风险区域评价
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-19 DOI: 10.1007/s00107-024-02156-1
Yanyu Zhao, Xinmiao Meng, Shiyi Mei, Xudong Zhu, Juan Yang, Ying Gao
{"title":"Regional assessment of mold growth risk in light wood-framed wall envelope based on meteorological data-driven and neural network model","authors":"Yanyu Zhao,&nbsp;Xinmiao Meng,&nbsp;Shiyi Mei,&nbsp;Xudong Zhu,&nbsp;Juan Yang,&nbsp;Ying Gao","doi":"10.1007/s00107-024-02156-1","DOIUrl":"10.1007/s00107-024-02156-1","url":null,"abstract":"<div><p>Wood is a renewable material ideal for environmentally friendly buildings, but wooden building envelopes may face mold growth risks across different climates. To ensure the long-term service life of wooden buildings in China, it is imperative to evaluate the mold growth risk in each region. Nevertheless, large-scale regional assessments require significant effort and time. This study proposes a method based on meteorological data and a neural network (NN) model for regional mold risk assessment in light wood-framed wall envelopes. The NN model, comprising a one-dimensional convolutional neural network (1D-CNN) and long short-term memory (LSTM), is trained on meteorological data from the hot summer and cold winter (HSCW) region, which is one of China's five climatic regions. It is validated using simulated data and one year of field monitoring data. Finally, the model predicts time series of relative humidity and temperature with a mold index from the empirical VTT model to assess mold growth risk in the HSCW region. The validation results with simulated data show good performance, with average R<sup>2</sup> values of 0.969 and 0.984 for predicting interior wall relative humidity and temperature, respectively. However, validation with monitoring data shows a decline in performance due to real-world complexities. The results of the risk assessment indicate that the wall used in this study is commonly at risk in the HSCW region. The proposed method is suitable for assessing mold risk in walls across diverse regional climates, thereby providing tailored improvements to the hygrothermal performance of walls.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced physico-mechanical properties and decay resistance of nano-silica-fortified furfuryl alcohol resin impregnated poplar wood 增强纳米硅强化糠醇树脂浸渍杨木的物理力学性能和耐腐性
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-18 DOI: 10.1007/s00107-025-02243-x
P. Nagraik, S. R. Shukla, A. K. Sethy
{"title":"Enhanced physico-mechanical properties and decay resistance of nano-silica-fortified furfuryl alcohol resin impregnated poplar wood","authors":"P. Nagraik,&nbsp;S. R. Shukla,&nbsp;A. K. Sethy","doi":"10.1007/s00107-025-02243-x","DOIUrl":"10.1007/s00107-025-02243-x","url":null,"abstract":"<div><p>Wood modification by impregnating different types of nanomaterial-fortified polymeric resins from plant sources has emerged as a promising technique to enhance its various properties and improve performance against biodeteriorating agents. This study explores the enhancement of physico-mechanical properties and durability of <i>Populus deltoides</i> (poplar) wood by incorporating nano-silica (NS) into furfuryl alcohol (FA) during the furfurylation process. Three different concentrations (1%, 3%, and 5%) of NS dispersed in FA were impregnated in poplar wood using vacuum-pressure technique. Different properties such as water absorption (WA), anti-swelling efficiency (ASE), surface hardness, decay resistance against fungi and thermal stability of modified wood were evaluated. Morphological analysis using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) mapping was performed to study the distribution of NS within the wood structures. Chemical interactions amongst different components of modified wood were confirmed by Fourier-transform infrared (FTIR) spectroscopy. Results of the present study demonstrate that NS fortified furfurylated wood exhibited reduced WA (96%), improved ASE (72–79%), enhanced decay resistance (4–6% mass loss) and increased surface hardness (4% in the side grain and 40% in the end grain). Also, the improvements were observed in the thermal stability of wood by adding NS with FA. Analysis of data showed that 3% concentration of NS provided optimal results to improve properties of poplar wood. The use of renewable FA derived as by-products from agricultural resources, coupled with usage of low-concentration of nanomaterial, makes this approach environmentally sustainable, offering a green alternative to conventional treatments.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propolis extract as a bio-based modifier of urea-formaldehyde adhesive in particleboard production 蜂胶提取物作为生物基脲醛胶粘剂在刨花板生产中的应用
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-17 DOI: 10.1007/s00107-025-02242-y
Jakub Kawalerczyk, Mateusz Barczewski, Magdalena Woźniak, Marcin Kuliński, Hilary Smogór, Dorota Dukarska, Radosław Mirski
{"title":"Propolis extract as a bio-based modifier of urea-formaldehyde adhesive in particleboard production","authors":"Jakub Kawalerczyk,&nbsp;Mateusz Barczewski,&nbsp;Magdalena Woźniak,&nbsp;Marcin Kuliński,&nbsp;Hilary Smogór,&nbsp;Dorota Dukarska,&nbsp;Radosław Mirski","doi":"10.1007/s00107-025-02242-y","DOIUrl":"10.1007/s00107-025-02242-y","url":null,"abstract":"<div><p>The presented research concerned the use of propolis extract as a modifier of urea-formaldehyde (UF) adhesive for the production of particleboard. The adhesive formulations differed in both the modifier content (1, 3 and 5%) and the extract concentration (50 and 70%). The results of differential scanning calorimetry, rheometric analysis of the cross-linking process and thermogravimetric analysis showed an acceleration of the curing process, a slight increase in viscosity and a decrease in the thermal stability of the cured adhesive mixtures. Moreover, the Fourier transform infrared spectroscopy analysis of the cured adhesives showed a reduction in the intensity of the peaks characteristic of the UF adhesive due to the applied modification. Furthermore, particleboards bonded with the mixtures containing 3 and 5% of 70% extract and 5% of 50% extract were characterized by significantly improved strength properties (bending strength, modulus of elasticity, internal bond), better water resistance (thickness swelling, water absorption) and reduced formaldehyde content. The adhesive mixture modified with 5% of 70% propolis extract was considered the optimal variant providing the most significant improvement in the properties of produced particleboards.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Boosting algorithms for predicting the bond properties of timber and fiber reinforced polymer (FRP) under thermal cycling using single-lap shear tests 利用单搭接剪切试验预测木材和纤维增强聚合物(FRP)在热循环下的粘结性能的增强算法
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-17 DOI: 10.1007/s00107-025-02240-0
Farzad Lotfalipour, Alireza Javid, Vahab Toufigh
{"title":"Boosting algorithms for predicting the bond properties of timber and fiber reinforced polymer (FRP) under thermal cycling using single-lap shear tests","authors":"Farzad Lotfalipour,&nbsp;Alireza Javid,&nbsp;Vahab Toufigh","doi":"10.1007/s00107-025-02240-0","DOIUrl":"10.1007/s00107-025-02240-0","url":null,"abstract":"<div><p>Precise modeling of the bond properties between timber and fiber-reinforced polymer (FRP) at varying temperatures is crucial for structural integrity. This study uses boosting algorithms—XGBoost, LightGBM, and CatBoost—to model the impact of thermal cycles on the bond behavior of FRP-timber using single-lap shear tests. A comprehensive dataset of 150 experimental results was compiled and processed to train and test the models. Key parameters were density, stiffness, temperatures, thermal cycling, energy absorption, ultrasonic pulse velocity (UPV) measurements, and fiber types (glass, carbon, and aramid). Genetic algorithms (GA) and a 5-fold cross-validation (CV) technique were employed to fine-tune the hyperparameters of the boosting algorithms. The results demonstrated the superior accuracy of the CatBoost model in predicting the bond characteristics. This comprehensive evaluation highlights the critical factors influencing FRP-timber composite mechanical behavior. Feature contribution analysis revealed that temperature and thermal cycles exert the most significant impact on the bond properties. The types of fibers (glass, carbon, and aramid) showed relatively low importance. This study shows that FRP-timber interface properties inform accurate predictive models and design guidelines for varying thermal cycles.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wood dowel welding without a pilot hole– an investigation into joining low-density plywood 无导孔木榫焊接。低密度胶合板焊接的研究
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-17 DOI: 10.1007/s00107-025-02241-z
Kevin Vitzthum, Florian Feist, Thomas Krenke
{"title":"Wood dowel welding without a pilot hole– an investigation into joining low-density plywood","authors":"Kevin Vitzthum,&nbsp;Florian Feist,&nbsp;Thomas Krenke","doi":"10.1007/s00107-025-02241-z","DOIUrl":"10.1007/s00107-025-02241-z","url":null,"abstract":"<div><p>The possibility of welding wood dowels into low-density plywood substrates without a pilot hole was investigated. Sharpened beech wood dowels with a diameter of 10 mm were inserted into plywood plates made from poplar and paulownia wood at a rotational rate of 1500 rpm with a manually operated drill press. This process resulted in welded joints of considerable strength. When poplar was used, withdrawal strengths as high as those of adhesive bonds were achieved.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental research on flexural performance of dowel laminated timber composed of LVL made from fast-growing larch 速生落叶松LVL复合木钉层合材抗弯性能试验研究
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-16 DOI: 10.1007/s00107-025-02239-7
Haiyan Fu, Zheng Li, Minjuan He
{"title":"Experimental research on flexural performance of dowel laminated timber composed of LVL made from fast-growing larch","authors":"Haiyan Fu,&nbsp;Zheng Li,&nbsp;Minjuan He","doi":"10.1007/s00107-025-02239-7","DOIUrl":"10.1007/s00107-025-02239-7","url":null,"abstract":"<div><p>Based on the dowel laminate timber production method and the laminated veneer lumber (LVL) material characteristic, a new type of mass timber, known as dowel laminated veneer lumber (DLVL), was developed using small-thickness LVL made from fast-growing larch (<i>Larix gmelinii</i> Rupr), which could be made into beams with large cross-sections. Four-point bending tests were carried out on DLVL beams. The flexural performance of vertical DLVL (V-DLVL) and horizontal DLVL (H-DLVL) beams was compared. The impacts of lamina thickness and width on the flexural strength and effective flexural stiffness of H-DLVL beams were further investigated. The prediction formulas of the flexural capacity and effective flexural stiffness of H-DLVL beams were proposed. The results showed that the flexural strength and effective flexural stiffness of H-DLVL beams were about 2 and 8 times that of V-DLVL beams with the same cross-section, respectively. The flexural performance of H-DLVL beams made from fast-growing wood was comparable with that of other engineered wood beams. The lamina thickness combination affected the flexural performance of H-DLVL beams. When the beam cross-section was constant, the flexural strength of H-DLVL beams composed of 20 mm and 40 mm mixed thickness LVL laminae was a little higher than that of H-DLVL beams only composed of 20 mm or 40 mm thickness LVL laminae. The prediction formulas considering the size effect could successfully predict the flexural capacity, maximum deflection, and effective flexural stiffness of H-DLVL beams.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A detailed statistical process control implementation for density in MDF manufacture through PCA, Shewhart and EWMA charts 通过主成分分析、休哈特图和EWMA图对中密度纤维板制造过程进行了详细的统计过程控制
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-13 DOI: 10.1007/s00107-025-02233-z
Sebahattin Tiryaki
{"title":"A detailed statistical process control implementation for density in MDF manufacture through PCA, Shewhart and EWMA charts","authors":"Sebahattin Tiryaki","doi":"10.1007/s00107-025-02233-z","DOIUrl":"10.1007/s00107-025-02233-z","url":null,"abstract":"<div><p>Density is one of the major decision-making criteria of medium-density fiberboard (MDF) in terms of product quality. It is therefore very important to keep this key quality characteristic of the MDF in control. This research presents an industrial implementation of Shewhart’<span>(:stackrel{-}{text{x}}-text{s})</span> control charts, which are generally constructed to catch large shifts, and exponentially weighted moving average (EWMA) control chart, which is mostly used to uncover small and moderately shifts, to monitor the density in the MDF manufacture in a forest products enterprise. Besides, a process capability analysis (PCA) was used to evaluate whether or not the measured outputs of density fall inside the specification limits. As a result; it was detected that the process was not in control for both <span>(:stackrel{-}{text{x}}-text{s})</span> and EWMA, which demonstrate the changes in the density. The PCA also revealed that the process did not have sufficient capability in meeting the specifications of the density. Ultimately, such studies will allow both engineers and quality control officers to monitor a large number of measurements of quality characteristics in manufacturing processes. This can make a major contribution to detecting whether quality-related issues exist in processes and thus guide practitioners in improving or maintaining the quality level. Furthermore, in light of the current study, the efforts to be carried out to identify and eliminate factors that cause the process to deviate from specifications as well as factors that cause signal generation are expected to contribute to both reducing the amount of non-conforming products and achieving a more stable process.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00107-025-02233-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on the transverse compression performance of wood reinforced with wood dowels and finite element numerical simulation 木钉加固木材横向压缩性能研究及有限元数值模拟
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-08 DOI: 10.1007/s00107-025-02229-9
Zhang Fenghao, Zhao Liyuan, Wang Sidong, Wang Qianqing, Chen Ruiyao, Jiang Jinghui
{"title":"Study on the transverse compression performance of wood reinforced with wood dowels and finite element numerical simulation","authors":"Zhang Fenghao,&nbsp;Zhao Liyuan,&nbsp;Wang Sidong,&nbsp;Wang Qianqing,&nbsp;Chen Ruiyao,&nbsp;Jiang Jinghui","doi":"10.1007/s00107-025-02229-9","DOIUrl":"10.1007/s00107-025-02229-9","url":null,"abstract":"<div><p>Wood is a typical anisotropic material with considerably lower transverse compressive strength than longitudinal compressive strength. In the field of wooden structure design and construction, the occurrence of tilting or even collapse due to transverse compression is a common challenge requiring careful consideration. Presently, reinforcement materials primarily include steel bars or screws, yet a comprehensive examination of internal force dynamics within reinforced wood is lacking. This study utilizes Japanese larch (<i>Larix kaempferi</i> (Lamb.) Carriere) as the wood material, reinforces the wood through the insertion of wood dowels made of Schima superba (<i>Schima superba</i> Gardner &amp; Champ.), and investigates the effects of the number and length of wood dowels on the transverse compressive strength and modulus of elasticity of the wood. A simulation model is established using the finite element software to analyze stress and strain variations in samples following wood dowel implantation. The study investigates the predictive and simulated influence of wood dowel diameter on the transverse compressive strength and modulus of elasticity of wood. The main conclusions are as follows: (1) Employing a 90 mm wood dowel can effectively increase the radial and tangential compressive strength as well as the modulus of elasticity of the wood. (2) Introducing wood dowels can influence the stress and strain distribution within the internal structure of wood, with increasing trends observed as the length of the dowel increases. (3) When the length of the wood dowel amounts to 90 mm, augmenting the diameter of the wood dowel can efficaciously enhance the transverse compression strength and modulus of elasticity of the wood.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of hydrolytic and freeze-thaw aging on the performance of spruce wood 水解和冻融老化对云杉木材性能的影响
IF 2.4 3区 农林科学
European Journal of Wood and Wood Products Pub Date : 2025-03-08 DOI: 10.1007/s00107-025-02228-w
Callisto Ariadne Beuthe, M. Reza Foruzanmehr, Marzieh Riahinezhad, Elnaz Esmizadeh, Peter Collins, Itzel Lopez-Carreon
{"title":"Effects of hydrolytic and freeze-thaw aging on the performance of spruce wood","authors":"Callisto Ariadne Beuthe,&nbsp;M. Reza Foruzanmehr,&nbsp;Marzieh Riahinezhad,&nbsp;Elnaz Esmizadeh,&nbsp;Peter Collins,&nbsp;Itzel Lopez-Carreon","doi":"10.1007/s00107-025-02228-w","DOIUrl":"10.1007/s00107-025-02228-w","url":null,"abstract":"<div><p>Wood is susceptible to various degradation mechanisms when exposed to dynamic environmental conditions, including hydrolysis caused by the infiltration of water into the wood cell structure. This study aims to examine the differences between the effects of two types of accelerated aging on the long-term performance of white spruce wood samples to have a better understanding of the performance of spruce wood in real-world applications. Two separate sets of samples were employed in this experimental study. One set was placed in a hydrolytic aging chamber at 90 °C and 80% relative humidity while the other set was placed in a freeze-thaw cycling chamber with temperature variations from 25 °C to -18 °C at a rate of 6 cycles per day. The aged samples were tested at regular intervals, with a testing span of 3 months for the hydrolytically aged samples and 300 cycles for the freeze-thaw aged samples. The results obtained from characterization tests showed that both aging conditions caused a significant increase in the crystallinity index of the samples. This finding highlights the potential value of subjecting wood to these conditions as a pre-treatment to standardize crystallinity levels for experimental purposes. Ultimately, the hydrolytic aging conditions were found to be more detrimental to the spruce wood samples. The samples that underwent hydrolytic aging demonstrated higher water uptake levels, lower viscoelastic properties, and lower thermal degradation temperatures than the samples that were subjected to freeze-thaw cycling.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"83 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00107-025-02228-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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