{"title":"落叶松与OSB复合交叉层合材粘结过程及层间剪切性能评价","authors":"Ming-yue Li, Hai-qing Ren","doi":"10.1007/s00107-023-02015-5","DOIUrl":null,"url":null,"abstract":"<p>This study explores the application of oriented strand board (OSB) to hybrid cross-laminated timber (HCLT). OSB and larch were used to fabricate hybrid forms of HCLT for analysis. Firstly, the impact of surface treatment on OSB was investigated in terms of its influence on the bonding line between materials, encompassing both pre-treatment and post-treatment surface properties of OSB. The findings indicate that sanding has the ability to alter the surface properties of OSB, leading to an increase in surface roughness and surface free energy, and reduce the pre-cured layer. Notably, there is no significant disparity observed in both the shear failure mode and shear strength of the bonding line of CLT, and the failure is in the core layer of OSB. Secondly, two layups of HCLT were prepared by combining OSB with larch. The interlaminar shear strength was assessed in both the major and minor strength directions using a three-point bending test. The results showed that, due to the low density and mechanical properties of the core layer of OSB, its application in HCLT as perpendicular layer is not a favorable choice, because it cannot prevent the rolling shear failure in perpendicular layer, and it also diminishes the interlaminar shear strength of HCLT in the minor strength direction. However, the interlaminar shear strength increases in the minor strength direction when OSB was used as the parallel layer, and larch was used as the perpendicular layer, even stronger than that in major strength direction.</p>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluation of the bonding process and interlaminar shear properties of hybrid cross-laminated timber prepared with larch and OSB\",\"authors\":\"Ming-yue Li, Hai-qing Ren\",\"doi\":\"10.1007/s00107-023-02015-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This study explores the application of oriented strand board (OSB) to hybrid cross-laminated timber (HCLT). OSB and larch were used to fabricate hybrid forms of HCLT for analysis. Firstly, the impact of surface treatment on OSB was investigated in terms of its influence on the bonding line between materials, encompassing both pre-treatment and post-treatment surface properties of OSB. The findings indicate that sanding has the ability to alter the surface properties of OSB, leading to an increase in surface roughness and surface free energy, and reduce the pre-cured layer. Notably, there is no significant disparity observed in both the shear failure mode and shear strength of the bonding line of CLT, and the failure is in the core layer of OSB. Secondly, two layups of HCLT were prepared by combining OSB with larch. The interlaminar shear strength was assessed in both the major and minor strength directions using a three-point bending test. The results showed that, due to the low density and mechanical properties of the core layer of OSB, its application in HCLT as perpendicular layer is not a favorable choice, because it cannot prevent the rolling shear failure in perpendicular layer, and it also diminishes the interlaminar shear strength of HCLT in the minor strength direction. However, the interlaminar shear strength increases in the minor strength direction when OSB was used as the parallel layer, and larch was used as the perpendicular layer, even stronger than that in major strength direction.</p>\",\"PeriodicalId\":550,\"journal\":{\"name\":\"European Journal of Wood and Wood Products\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2023-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Journal of Wood and Wood Products\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s00107-023-02015-5\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"FORESTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Wood and Wood Products","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s00107-023-02015-5","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FORESTRY","Score":null,"Total":0}
Evaluation of the bonding process and interlaminar shear properties of hybrid cross-laminated timber prepared with larch and OSB
This study explores the application of oriented strand board (OSB) to hybrid cross-laminated timber (HCLT). OSB and larch were used to fabricate hybrid forms of HCLT for analysis. Firstly, the impact of surface treatment on OSB was investigated in terms of its influence on the bonding line between materials, encompassing both pre-treatment and post-treatment surface properties of OSB. The findings indicate that sanding has the ability to alter the surface properties of OSB, leading to an increase in surface roughness and surface free energy, and reduce the pre-cured layer. Notably, there is no significant disparity observed in both the shear failure mode and shear strength of the bonding line of CLT, and the failure is in the core layer of OSB. Secondly, two layups of HCLT were prepared by combining OSB with larch. The interlaminar shear strength was assessed in both the major and minor strength directions using a three-point bending test. The results showed that, due to the low density and mechanical properties of the core layer of OSB, its application in HCLT as perpendicular layer is not a favorable choice, because it cannot prevent the rolling shear failure in perpendicular layer, and it also diminishes the interlaminar shear strength of HCLT in the minor strength direction. However, the interlaminar shear strength increases in the minor strength direction when OSB was used as the parallel layer, and larch was used as the perpendicular layer, even stronger than that in major strength direction.
期刊介绍:
European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets.
European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.