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Verification of the photogrammetric approach on the torsion test method for timber beams 木梁扭转试验中摄影测量方法的验证
IF 1.1
International Wood Products Journal Pub Date : 2021-10-07 DOI: 10.1080/20426445.2021.1983690
Ahmed Mohamed, K. Uheida, Y. Quan, Hexin Zhang
{"title":"Verification of the photogrammetric approach on the torsion test method for timber beams","authors":"Ahmed Mohamed, K. Uheida, Y. Quan, Hexin Zhang","doi":"10.1080/20426445.2021.1983690","DOIUrl":"https://doi.org/10.1080/20426445.2021.1983690","url":null,"abstract":"ABSTRACT The photogrammetric approach was proposed in this study to evaluate torsional behaviour of glulam timber beams during the torsion test. The main objectives were to investigate the applicability of the photogrammetric approach and to monitor more details of angles of twist of glulam timber beams. Experiments were conducted and the twists on long and short sides of the cross section were measured using the photogrammetric approach and inclinometer sensors, which were used to validate the accuracy. The test results showed that the optical system allowed monitoring the rotations of the samples at different locations which would not be possible to obtain using the traditional techniques. The results also showed that there is a non-linearity from the measurement of the shear displacements along the long side of the cross-section. However, the average rotation shows clear agreements with the inclinometer readings.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41904159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Veneer and plywood properties of yemane (Gmelina arborea Roxb.) from 3-, 5-, and 7-year-old plantation trees 3年、5年和7年树龄人工林的叶曼(Gmelina arborea Roxb.)的单板和胶合板性能
IF 1.1
International Wood Products Journal Pub Date : 2021-09-28 DOI: 10.1080/20426445.2021.1979823
Juanito P. Jimenez, Jr, D. Gilbero, M. Alipon
{"title":"Veneer and plywood properties of yemane (Gmelina arborea Roxb.) from 3-, 5-, and 7-year-old plantation trees","authors":"Juanito P. Jimenez, Jr, D. Gilbero, M. Alipon","doi":"10.1080/20426445.2021.1979823","DOIUrl":"https://doi.org/10.1080/20426445.2021.1979823","url":null,"abstract":"ABSTRACT Young (3-, 5- and 7-year-old) yemane (Gmelina arborea Roxb.) trees from an industrial tree plantation in Mindanao, Philippines, were studied for their suitability into veneer and plywood production. For each tree, a 4.5-meter log was cut into three 1.5-meter billets for peeling into 0.85-, 2.20- and 2.80-mm veneer thicknesses using a spindleless lathe. Veneer quality was evaluated based on thickness, frequency and depth of lathe checks on the samples. Ten replicates of 3-ply 4.5 mm plywood bonded with phenol formaldehyde were made per age level to determine conformance to standard. Results showed that veneer thickness was higher than the target by 3–22%. Mean frequency of lathe checks ranged from 1 to 10 per 25 mm veneer length, while mean depth ranged from 15 to 60%. The bond strength quality test showed that despite young age, yemane plywood passed the requirement of the PNS ISO 12466-2:2016.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44237129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Balsa wood (Ochroma pyramidale) waste and OSB panels with castor oil polyurethane resin 用蓖麻油聚氨酯树脂对巴尔沙木(Ochroma pyramidale)废料和OSB板的评价
IF 1.1
International Wood Products Journal Pub Date : 2021-09-15 DOI: 10.1080/20426445.2021.1977519
Victor Hellmeister, G. Barbirato, Wanley Eduardo Lopes Junior, V. Santos, J. Fiorelli
{"title":"Evaluation of Balsa wood (Ochroma pyramidale) waste and OSB panels with castor oil polyurethane resin","authors":"Victor Hellmeister, G. Barbirato, Wanley Eduardo Lopes Junior, V. Santos, J. Fiorelli","doi":"10.1080/20426445.2021.1977519","DOIUrl":"https://doi.org/10.1080/20426445.2021.1977519","url":null,"abstract":"ABSTRACT This research presents an advanced characterization of Balsa wood waste to evaluate its potential use as raw material for Oriented Strand Board (OSB) panel. For that, chemical, thermal and microstructural characterization of the Balsa wood particles were performed followed by the production and characterization of OSB agglomerated with castor oil polyurethane resin (Pu-Castor oil). The results indicated that the lignin content of the Balsa wood waste was lower than the content found in Pinus spp. wood, used in the industrial production of OSB panels, demonstrating the need for higher resin contents to ensure a perfect agglomeration of the particles. Microstructural analysis indicated that the Balsa wood presented characteristics to be used as a constituent raw material of OSB with Pu-Castor oil. The physical-mechanical characterization indicated that the material can be classified as OSB type 1 in accordance with the EN 300:2006 guidelines and is suitable for application in internal environments.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44829882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Bending test on large-scale GLT beams with well-known beam setup using machine grading indicator 采用机器分级指示器对大型GLT梁进行弯曲试验
IF 1.1
International Wood Products Journal Pub Date : 2021-08-25 DOI: 10.1080/20426445.2021.1969166
G. Fink, Phillipp Stadelmann, A. Frangi
{"title":"Bending test on large-scale GLT beams with well-known beam setup using machine grading indicator","authors":"G. Fink, Phillipp Stadelmann, A. Frangi","doi":"10.1080/20426445.2021.1969166","DOIUrl":"https://doi.org/10.1080/20426445.2021.1969166","url":null,"abstract":"ABSTRACT This paper presents large-scale bending test, up to 19 m length, on glued laminated timber (GLT) beams with well-known beam setup and a model to predict the tensile strength of finger joint connections (FJ). Machine graded timber boards, with information about the dynamic stiffness and local knottiness were used to fabricate 12 GLT beams. The position of the timber boards were tracked throughout the GLT fabrication. To quantify the quality of the FJ additional FJ were fabricated and tested in tension. Based on the results, a model to predict their strength properties based on the grading information of the involved timber boards was developed using maximum likelihood estimation for censored data.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47113858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The potential of blockchain technology in the procurement of sustainable timber products 区块链技术在采购可持续木材产品方面的潜力
IF 1.1
International Wood Products Journal Pub Date : 2021-08-19 DOI: 10.1080/20426445.2021.1967624
E.F. Morten Komdeur, Paul T. M. Ingenbleek
{"title":"The potential of blockchain technology in the procurement of sustainable timber products","authors":"E.F. Morten Komdeur, Paul T. M. Ingenbleek","doi":"10.1080/20426445.2021.1967624","DOIUrl":"https://doi.org/10.1080/20426445.2021.1967624","url":null,"abstract":"ABSTRACT Blockchain technology, best known as the decentralised transactional ledger of Internet currencies such as Bitcoin, could provide possibilities for tracking the origin of timber products. As such, it could ease the complex job of timber procurement officers in companies that seek to purchase timber products from trustworthy origins. This study explores how trust among purchasers in suppliers of sustainable timber can be increased and the roles that blockchain technology could play as a factor influencing purchasing decisions. The study examines the attributes influencing purchaser trust in timber products, revealing that the country of origin is the strongest predictor of purchaser trust, followed by the price level for the timber product, the presence of a certification scheme, and the duration of the relationship with the supplier. Blockchain technology also had a significant effect on purchaser trust and could become an important factor for generating trust in timber products during international trade.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42168390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Production, application and market of activated carbon in Brazil: a review 巴西活性炭的生产、应用及市场综述
IF 1.1
International Wood Products Journal Pub Date : 2021-08-11 DOI: 10.1080/20426445.2021.1964311
Nídia Niela de Lima, Jianne Rafaela Mazzini de Souza, A. Carneiro, Ítalo Lima Nunes, Aguida Beatriz Travaglia Viana, Márcio Lopes da Silva
{"title":"Production, application and market of activated carbon in Brazil: a review","authors":"Nídia Niela de Lima, Jianne Rafaela Mazzini de Souza, A. Carneiro, Ítalo Lima Nunes, Aguida Beatriz Travaglia Viana, Márcio Lopes da Silva","doi":"10.1080/20426445.2021.1964311","DOIUrl":"https://doi.org/10.1080/20426445.2021.1964311","url":null,"abstract":"ABSTRACT\u0000 Activated carbon (AC) is a carbonaceous material used to adsorb and remove pollutants. One of the requirements for the material to be considered a precursor in the AC production is its high levels of carbon. Therefore, a promising alternative for the use of forest biomass and its residues would be the application of these materials as precursors in the AC production. Owing to the productive capacity of activated carbon in Brazil and the considerable availability of forest biomass, the objective of the study was to approach the production and market of activated carbon in Brazil. This study is a bibliographic review focused on the use of forest resources for the AC production. AC production occurs by three methods: physical, chemical and physico-chemical activation. At the national level, the main production method is the physical one, since it has the least cost. However, the Sector still requires the researches and technologies aimed at the standardisation and improvements in the whole production chain.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46732348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Thermo-hydro-mechanical densification of hemlock 铁杉的湿热机械致密化
IF 1.1
International Wood Products Journal Pub Date : 2021-07-27 DOI: 10.1080/20426445.2021.1957616
Poorya Kooche Baghy, S. Avramidis
{"title":"Thermo-hydro-mechanical densification of hemlock","authors":"Poorya Kooche Baghy, S. Avramidis","doi":"10.1080/20426445.2021.1957616","DOIUrl":"https://doi.org/10.1080/20426445.2021.1957616","url":null,"abstract":"ABSTRACT The effect of Thermo-Hydro-Mechanical densification on selected properties of western hemlock was investigated. The drive was to explore the possibility of using hemlock as a replacement for expensive hardwoods for flooring applications. Kiln-dried boards at about 12% moisture content were subjected to densification in a hot press. As a special treatment, half of the samples were surface-sprayed with water before densification and three pressing times (5, 10, and 15 min), as well as temperature levels (120°C, 160°C, and 200°C) were used. Sample density, hardness, colour change, and abrasion resistance were evaluated after densification. Data analysis revealed that the temperature level, densification time, and type of pre-treatment were statistically significant factors. Compared to controls, densification significantly improved density, hardness, and abrasion resistance by 197%, 386%, and 437%, respectively. As a possible desired aesthetic feature, this process darkened hemlock by about 200%.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/20426445.2021.1957616","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46074436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The effect of heat treatment on the characteristics of the short rotation teak 热处理对短旋柚木特性的影响
IF 1.1
International Wood Products Journal Pub Date : 2021-07-03 DOI: 10.1080/20426445.2021.1953723
Resa Martha, E. Basri, Loedy Setiono, I. Batubara, I. Rahayu, P. Gérardin, W. Darmawan
{"title":"The effect of heat treatment on the characteristics of the short rotation teak","authors":"Resa Martha, E. Basri, Loedy Setiono, I. Batubara, I. Rahayu, P. Gérardin, W. Darmawan","doi":"10.1080/20426445.2021.1953723","DOIUrl":"https://doi.org/10.1080/20426445.2021.1953723","url":null,"abstract":"ABSTRACT An innovative eco-friendly technology, applied to improve the quality of the short rotation teak, was wood modification by heat treatment. The study was to investigate the effects of heat treatment at 180°C, 200°C, and 220°C on the characteristics of the short rotation teak. The results show that the short rotation teak degraded hemicellulose and increased α-cellulose and lignin after the heat treatment. Anti-swelling efficiency value after heat treatment was improved ranging between 12.9% and 46.7%, indicating an improvement in dimensional stability. The MOE and MOR values decreased after heat treatment. The heat treated sample at 180°C after graveyard test was the lowest in weight loss, which presented good durability against termite (rating 9) and decay (rating 10). The surface roughness and SFE values decreased as the heating temperature increased. The heat treated at 220°C provided the lowest K-values (0.04 for acrylic and 5.04 for alkyd paint) which indicate the poorest wettability.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/20426445.2021.1953723","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42687954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Advanced natural fibre-based fully biodegradable and renewable composites and nanocomposites: a comprehensive review 先进的天然纤维基完全可生物降解和可再生复合材料和纳米复合材料:综述
IF 1.1
International Wood Products Journal Pub Date : 2021-07-03 DOI: 10.1080/20426445.2021.1945180
R. Naghdi
{"title":"Advanced natural fibre-based fully biodegradable and renewable composites and nanocomposites: a comprehensive review","authors":"R. Naghdi","doi":"10.1080/20426445.2021.1945180","DOIUrl":"https://doi.org/10.1080/20426445.2021.1945180","url":null,"abstract":"ABSTRACT The present environmental limitations and also the depletion of oil-based resources have resulted in greater thrust for the development of environmentally friendly and energy-saving biocomposites termed as green composites. The unique combined properties of biofibres have introduced this new class of biocomposites as a versatile alternative to the present petrochemical composite materials. Considerable efforts are now underway to effectively take advantage of the synergistic effects of combining natural reinforcements and plant-derived polymers for high-performance green composites and nanocomposites. This paper reports the most recent advances in characterization and multifunctional properties of different agro-waste fibres and polymers. The structural properties and functions of the resulting green composites along with their applications are also discussed in details in each section. The current research trends for modification of natural fibres, processing techniques of the given composites as well as their future prospects and challenges are addressed.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/20426445.2021.1945180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47098554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
A review on Acacia auriculiformis: importance as pulpwood planted in social forestry 金合欢在社会林业中的重要地位
IF 1.1
International Wood Products Journal Pub Date : 2021-07-03 DOI: 10.1080/20426445.2021.1949107
M. Haque, Yong-Jong Ni, A. Akon, M. A. Quaiyyum, M. Jahan
{"title":"A review on Acacia auriculiformis: importance as pulpwood planted in social forestry","authors":"M. Haque, Yong-Jong Ni, A. Akon, M. A. Quaiyyum, M. Jahan","doi":"10.1080/20426445.2021.1949107","DOIUrl":"https://doi.org/10.1080/20426445.2021.1949107","url":null,"abstract":"ABSTRACT Acacia, an exotic fast-growing tree species was introduced into Southeast Asian countries on degraded soils. In Bangladesh, China, India, Vietnam, Indonesia plantations of Acacia were established for pulpwood production with people’s participation. This paper reviews the current knowledge of the physical, chemical and morphological characteristics of A. auriculiformis and its pulping potential. The wood density, chemical and morphological properties of A. auriculiformis impacted positively for pulpwood selection in many countries. A. auriculiformis planted in a social forestry programme in Bangladesh and other countries showed almost similar characteristics to A. auriculiformis grown in different parts of the world. It is a promising species for pulping in Bangladesh and other Southeast Asian countries, at the same time poor people can improve their livelihood through participation in social forestry programme by planting this species.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/20426445.2021.1949107","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59995870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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