文献类型：期刊文献

英文题名：Natural weathering of bamboo scrimber: A case study on degradation of chemical and mechanical properties

作者：Li, Bingbing[1] Ma, Hongxia[2] Qi, Yue[1] Kim, Namhun[3] Yu, Wenji[1] Zhang, Yahui[1]

第一作者：Li, Bingbing

通信作者：Zhang, YH[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dongxiaofu, Beijing 100091, Peoples R China;[2]Guangdong Acad Forestry, Guangzhou 510520, Guangdong, Peoples R China;[3]Kangwon Natl Univ, Coll Forest & Environm Sci, Chunchon 200701, South Korea

年份：2025

卷号：492

外文期刊名：CONSTRUCTION AND BUILDING MATERIALS

收录：;EI(收录号：20253118906821);Scopus(收录号：2-s2.0-105012023190);WOS:【SCI-EXPANDED(收录号:WOS:001544068400002)】；

基金：This work was given support by the National Nature Science Foundation of China (NSFC) General Project (No. 32171886) , and thanks to Fundamental Research Funds of Chinese Academy of Forestry (CAFYB2023QE001) and Key-Area Research and Development Program of Guangdong Province (2020B020216002) .

语种：英文

外文关键词：Bamboo scrimber; Chemical components; Degradation; Mechanical strength; Natural weathering

摘要：Bamboo scrimber as a green construction material is widely utilized in practical engineering with its durability under natural environment being of importance. The environmental durability of material is significantly influenced by climatic factors. This study investigated the degradation mechanisms of bamboo scrimber that were exposed to different environmental conditions for a decade. The changes in cellulose, lignin and hemicellulose of bamboo scrimber resulting from natural weathering were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Variations in mechanical properties were assessed by bending and shear strength. Quantitative results indicated that natural weathering could cause the degradation of lignin on the surface of bamboo scrimber, and affect cellulose crystallinity, resulting in a reduction in mechanical strength. Moreover, bamboo scrimber exposed to the conditions of a subtropical monsoon climate exhibited significant degradation when compared to samples in outdoor environments with a temperate monsoon climate. The identified climate-induced degradation patterns provide critical insights for optimizing the material and predicting its long-term performance under diverse environmental exposures.