文献类型：期刊文献

英文题名：A new type of engineered wood product: Cross-laminated-thick veneers

作者：Huang, Yuxiang[1] Hu, Juan[2] Peng, Huafu[3] Chen, Jie[4] Wang, Yilin[5] Zhu, Rongxian[1] Yu, Wenji[] Zhang, Yahui[1]

第一作者：黄宇翔

通信作者：Zhang, YH[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, Beijing 100083, Peoples R China;[3]Natl Forestry & Grassland Adm, Ind Dev Planning Inst, Beijing 100028, Peoples R China;[4]Anji Cty Bamboo Ind Dev Bur, Huzhou 313300, Peoples R China;[5]Chengdu Tongjian Urban Construct Dev Co Ltd, Chengdu 610031, Peoples R China

年份：2024

卷号：20

外文期刊名：CASE STUDIES IN CONSTRUCTION MATERIALS

收录：;EI(收录号：20234915172945);Scopus(收录号：2-s2.0-85178556091);WOS:【SCI-EXPANDED(收录号:WOS:001135066300001)】；

基金：This study was funded by the National Key Research and Development Program of China (2021YFD2200605) and we acknowledge Beijing Zhongkebaice Technology Service Co., Ltd. for the characterization results.

语种：英文

外文关键词：Engineered wood product; Cross laminated thick veneers; Bending properties; Formaldehyde emission; Total volatile organic compounds

摘要：The global scarcity of high-quality solid wood resources has propelled efforts towards developing high value-added products utilizing fast-growing wood. However, the inherent low quality of fastgrowing wood poses a significant challenge for its use in engineered wood products. In response to this challenge, this study focuses on the transformation of larch logs into a novel engineering wood product termed cross-laminated-thick veneers (CLTV). The process involves rotary cutting larch logs into 7.5 mm thick veneers, followed by hygrothermal treatment to alleviate stress, and ultimately assembling layers of thick veneers oriented at right angles, securely bonded to form structural panels. The investigation into the mechanical properties of CLTV reveals promising results. The static bending strength and modulus of a 15-layer CLTV with a thickness of 105 mm exhibit noteworthy values of 62.29 MPa and 10986 MPa, respectively. These values stand in comparison to the performance metrics of cross-laminated-timber (CLT) with only 3 layers, indicating the viability of CLTV as a competitive alternative. Additionally, the formaldehyde emission from CLTV measures at a minimal 0.010 mg/m3, while total volatile organic compounds are limited to 47 mu g/m3. The development of CLTV emerges as a sustainable solution to the shortage of high-quality solid wood resources. Its comparable performance to traditional materials such as CLT positions CLTV as an eco-friendly alternative for engineered wood products applicable in diverse global building systems. The minimal formaldehyde emission and low volatile organic compounds further emphasize the potential positive impact of CLTV on both the construction industry and broader environmental sustainability initiatives worldwide. This study sets the stage for advancing engineered wood products, addressing resource constraints, and contributing to sustainable practices in the global construction sector.