Cross-laminated strand veneer lumber mass timber panels from thermally modified strands
Cross-laminated strand veneer lumber mass timber panels from thermally modified strands
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DOI：
10.1016/j.conbuildmat.2023.130370
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发表时间：
2023-03
影响因子：
7.4
通讯作者：
Ruben Jerves;V. Yadama;M. Aro;M. R. Pelaez‐Samaniego
中科院分区：
文献类型：
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作者：
Ruben Jerves;V. Yadama;M. Aro;M. R. Pelaez‐Samaniego
在加压系统中使用热改性的木绞线生产薄股复合板和随后的大量木梁。研究了热改性（TM）温度和停留时间对板材力学性能、吸湿性能和老化性能的影响。TM减少了吸湿性，增加了耐腐性。薄股复合材料进行了评估，在弯曲和基准对市售的结构产品。同时，采用传统的层合梁理论对大体积木梁的面外弯曲进行了精确的预测。该研究表明，TM在受控条件下，能够生产具有改进的尺寸稳定性和耐腐蚀性的高性能木纤维板。
Thin-strand composite panels and subsequent mass timber beams were produced using thermally modified wood strands in a pressurized system. The effects of thermal modification (TM) temperature and dwell time on the mechanical, moisture, and decay performance of panels were studied. TM reduced moisture sorption and increased decay resistance. The thin-strand composites were evaluated in flexure and benchmarked against commercially available structural products. Moreover, the mass timber beams’ out-of-plane bending was accurately predicted with traditionally used laminated beam theory. The study shows that TM, under controlled conditions, enables the production of high-performing wood-strand panels with improved dimensional stability and decay resistance.