Article
Construction & Building Technology
Xueyu Wang, Xiangya Luo, Haiqing Ren, Yong Zhong
Summary: This study investigates the bending failure mechanism of bamboo scrimber (BS) and provides insights for its rational design and safe application in engineering. The study reveals that the macroscopic and microscopic properties of BS exhibit typical brittle failure, which is influenced by multiple stress factors. The elastic modulus of BS is greatly increased due to the concentration of sclerenchymatous cells. Important factors contributing to the brittle failure mechanism include compression of energy absorption tissues, resin filling in cavities, and decomposition of hemicellulose.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Polymer Science
Jiayu Xu, Zhezhe Zhou, Xiaochun Zhang, Yantao Xu
Summary: This study improved the mildew resistance and mechanical properties of bamboo scrimber through alkali treatment, enhancing its suitability for outdoor applications.
Article
Polymer Science
Xueyu Wang, Yong Zhong, Xiangya Luo, Haiqing Ren
Summary: The study found that the compressive strength and elastic modulus of bamboo scrimber were greater in the longitudinal direction compared to the radial and tangential directions, with more ductile fracture observed in longitudinal compression specimens. The failure modes of bamboo scrimber also varied in different directions, which was attributed to the location of maximum strain.
Article
Construction & Building Technology
Xiangya Luo, Xueyu Wang, Haiqing Ren, Shuangbao Zhang, Yong Zhong
Summary: This study investigated the long-term mechanical properties of bamboo scrimber (BS), including the duration of load (DOL) and creep effects. It found that BS had a more severe DOL effect compared to other structural wooden materials, but a smaller relative creep strain. The study also provided time-dependent constitutive models for predicting the DOL factor and creep strain of BS under different load durations, which is beneficial for its long-term safe application as a new structural material.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Forestry
Ershan Liang, Chuanfu Chen, Dengyun Tu, Qiaofang Zhou, Jiahua Zhou, Chuanshuang Hu, Xingwei Li, Hongxia Ma
Summary: This study investigates the impact of the drying process of bamboo bundles on the physical and mechanical properties of bamboo scrimber, and proposes a highly efficient and energy-saving two-step drying process with significant potential for large-scale production of bamboo scrimber.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Construction & Building Technology
Jun Peng, Shao-Bo Kang, Ling-Long Shi, Xiao-Fan Yu, Shu-Rong Zhou, Gang Xiong
Summary: This paper presents experimental and theoretical investigations on the behavior of short bamboo scrimber box columns under compression. The experimental results show that when the width-to-thickness ratio of plates is less than or equal to 10, the box columns exhibit compression failure, reaching the ultimate compressive strength of bamboo scrimber. However, when the ratio exceeds 11, local buckling of bamboo scrimber plates is observed instead of compression failure, and the ultimate compressive stress decreases with increasing width-to-thickness ratio. Theoretical analyses considering the nonlinear stress-strain relationship provide reasonably good estimations of the local buckling stress for columns with a width-to-thickness ratio greater than 10.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Zujian Huang, Hartwig Kuenzel, Martin Krus, Wenyu Zhang
Summary: This study clarifies the hygric properties of laminated bamboo (LB) and bamboo scrimber (BS), two emerging bamboo products for building materials. The study reveals that LB and BS have lower moisture storage and transport capacities compared to reference timber. Additionally, the critical relative humidity for mold growth on LB and BS is lower than the internationally used value for timber, making bamboo more susceptible to moisture damage.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Si Chen, Yang Wei, Jie Zhu, Yu Lin, Hao Du
Summary: Shear failure parallel to grain is a common failure mode for bamboo scrimber under flexural loading. The bamboo scrimber beams were reinforced with bamboo pins to address this issue. Four-point bending tests were carried out to analyze the failure mechanism, ultimate bearing capacity, load-deflection curves, load-strain relationship, strain distribution, and interlayer slip law of the bamboo scrimber beams. It was found that the bamboo pins effectively resisted shear failure and increased the ultimate bearing capacity of the beams.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Manufacturing
Hugo Pineda, Yu'an Hu, Kate Semple, Meiling Chen, Chunping Dai
Summary: A novel computer simulation model is presented for the formation of bamboo fibre composite (BFC) mats, which predicts the density variability in BFC panels and analyzes the effects of bundle and panel thickness, bundle width, and width taper on composite uniformity. This model provides a simulation platform for further analyses of mat consolidation and element orientation for bamboo and wood composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Agricultural Engineering
Siyang Ji, Qunying Mou, Guangming Yuan, Haiqing Ren, Xiazhen Li
Summary: This study investigates the dowel-bearing behavior of bolted joints on bamboo scrimber and proposes estimation formulas based on experimental analysis. The results show that bolt diameter, sample thickness, and loading direction have an influence on the dowel-bearing behavior. Additionally, the failure mechanisms differ between samples loaded in parallel and perpendicular to the grain direction.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agricultural Engineering
Xiazhen Li, Siyang Ji, Ting Li, Zhexi Liu, Xiaofeng Hao, Zhangjing Chen, Yong Zhong, Xianjun Li
Summary: Thermal treatment plays an important role in the modification of bamboo, improving its physical, mechanical, and fire performance, making it suitable for use as structural engineering materials. The HL group of bamboo scrimber processed with superheated steam at a temperature of 200 degrees C exhibits exceptional dimensional stability and fire resistance, but slightly lower mechanical properties. Thermal treatment leads to changes in chemical components and microstructures of bamboo, affecting its performance.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Materials Science, Paper & Wood
Zhenzeng Wu, John Tosin Aladejana, Daobang Huang, Xinhuai Gong, Shuqiong Liu, Xiaodong (Alice) Wang, Yongqun Xie
Summary: This study evaluated the anti-mildew performances of aluminum phosphate sol and alumina silicate sol on bamboo materials. The suitable concentrations of boron and copper as anti-mold agents were found to be 2% and 0.7%, respectively. Copper sulfate showed the highest efficacy in preventing mildew.
Article
Polymer Science
Xingyu Liang, Yan Yao, Xiao Xiao, Xiaorong Liu, Xinzhou Wang, Yanjun Li
Summary: In this paper, the effects of pressure-steam heat treatment on the micro-structure, physical properties, and mechanical properties of bamboo were investigated. The results showed that saturated-steam heat treatment can enhance the anti-mildew property and mechanical properties of bamboo.
Article
Construction & Building Technology
Hongmin Li, Hongxing Qiu, Zhiqiang Wang, Yong Lu
Summary: This study investigated the withdrawal resistance of self-tapping screws in engineered bamboo scrimber, finding that the withdrawal resistance increased with the embedment length, screw diameter, and angle between the fiber and axis.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Tiancheng Yuan, Xinshun Yin, Yaqian Huang, Xiaoran Li, Xinzhou Wang, Lei Chen, Yanjun Li
Summary: This study analyzed the changes in the mechanics of bamboo cell walls after hydrothermal modification and revealed the tendency of mechanical properties from the bamboo inner layer to the bamboo outer layer. Additionally, hydrothermally modified bamboo samples exhibited excellent anti-mildew property.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Tao Zhu, Jiale Sheng, Jiabao Chen, Kai Ren, Zhenzeng Wu, Hui Wu, Jian Li, Jinguo Lin
Summary: The study investigated the use of extractives from Dalbergia cohinchinensis residues as a natural dye to improve the anti-UV property of dyed wood. The results showed that the dyed wood exhibited lesser color difference and reduced color intensity after UV irradiation, indicating good anti-UV performance.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Multidisciplinary
Zhenzeng Wu, Tingjie Chen, John Tosin Aladejana, Yves Kouomo Guelifack, Dehong Li, Xinjun Hou, Xiaodong(Alice) Wang, Min Niu, Yongqun Xie
Summary: A sustainable aluminophosphate (AP) adhesive was developed as a fire retardant for medium-density fiberboard (MDF), significantly improving its thermal stability and fire performance. The deposition of an AP inorganic layer on wood fibers surface protected them from oxidation, reduced fire parameters, and enhanced fire retardant properties of MDF.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Materials Science, Paper & Wood
Zhenzeng Wu, John Tosin Aladejana, Daobang Huang, Xinhuai Gong, Shuqiong Liu, Xiaodong (Alice) Wang, Yongqun Xie
Summary: This study evaluated the anti-mildew performances of aluminum phosphate sol and alumina silicate sol on bamboo materials. The suitable concentrations of boron and copper as anti-mold agents were found to be 2% and 0.7%, respectively. Copper sulfate showed the highest efficacy in preventing mildew.
Article
Chemistry, Physical
Rongrong Li, Qian Yao, Wei Xu, Jingya Li, Xiaodong (Alice) Wang
Summary: The cutting power consumption of milling has a direct effect on the economic benefits of manufacturing particle boards. This study investigates the influence of milling parameters on the cutting power and finds that the rake angle, rotation speed of the main shaft, and depth of milling are the key factors affecting the cutting power.
Article
Chemistry, Multidisciplinary
Zhenzeng Wu, John Tosin Aladejana, Shuqiong Liu, Xinhuai Gong, Xiaodong Alice Wang, Yongqun Xie
Summary: This study explored the performance of bamboo particle boards (BPBs) made from unsaturated polyester resin (UPR) with toluene diisocyanate (TDI) as the coupling agent. Results showed that covalent bonds were formed among TDI, bamboo particles, and UPR, significantly enhancing the mechanical strength and improving thermal stability. The treated BPBs exhibited significant improvements in internal bonding strength, modulus of elasticity, and modulus of rupture, and had lower thickness swelling rate. Therefore, using UPR as the adhesive and TDI as the coupling agent in BPBs offers better usability, higher efficiency, and excellent mechanical strength.
Review
Construction & Building Technology
Dehong Li, Biaorong Zhuang, Yuchen Chen, Bin Li, Veronic Landry, Alireza Kaboorani, Zhenzeng Wu, Xiaodong Alice Wang
Summary: This article comprehensively reviews the application of bio-based phase change materials (BPCMs) in energy storage, discusses the incorporation technology of BPCMs, and highlights the issues that require further research.
ENERGY AND BUILDINGS
(2022)
Article
Forestry
Rongrong Li, Chujun He, Xiaodong Wang
Summary: Laser surface modification involves using a laser beam to change the surface structure and chemical components of a workpiece, altering the material's physical and chemical properties. This study utilized a CO2 laser to modify poplar plywood, evaluating the processability by measuring mass loss and paint film properties. Response surface methodology was employed for experimental design, data analysis, and model creation. Results showed that laser processing parameters had a significant impact on mass loss and paint film properties, with power and feed speed playing prominent roles. The created quadratic models accurately predicted the properties variations of poplar plywood during CO2 laser modification.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Materials Science, Paper & Wood
Rongrong Li, Chujun He, Wei Xu, Xiaodong (Alice) Wang
Summary: Due to its flexible motion characteristics, helical milling is able to achieve high surface quality and cutting stability. In the medium density fiberboard (MDF) helical up-milling process, the effects of input parameters on specific cutting energy (SCE) were investigated. The results showed that the helical angle and depth of milling had extremely significant effects on SCE, while the rotation speed of the main shaft had a non-significant impact. A quadratic model was established to accurately predict SCE. The optimized parameters for helical angle, rotation speed, and depth of milling were determined. Although there was a slight increase in surface roughness under the optimized milling parameters, the optimization was feasible at the initial rough machining stage. These findings are important for guiding the selection of processing parameters to reduce SCE.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Forestry
Wangyu Xu, Zhanwen Wu, Wei Lu, Yingyue Yu, Jinxin Wang, Zhaolong Zhu, Xiaodong Wang
Summary: In this study, RSM was used to investigate the cutting power and optimal cutting conditions of wood-plastic composite. A cutting power model was developed based on experimental results, and the effects of various factors were analyzed. The optimal cutting condition obtained can be applied in industrial manufacturing to achieve efficient machining and energy savings.
Article
Engineering, Civil
Lan Xie, Guojing He, Alice Xiaodong Wang, Roberto Crocetti, Lian Shen, Xiao Tang
Summary: This study investigated the hysteretic behavior of bolt connections in a timber-concrete composite bridge through experimental and numerical simulations. The results showed that the dual-hinge mechanism of the bolts was the predominant failure mode, and the timber-concrete composite specimens exhibited satisfactory energy dissipation and ductility.
JOURNAL OF BRIDGE ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Rongrong Li, Chujun He, Wei Xu, Xiaodong Alice Wang
Summary: The CO2 laser is used as an environmentally friendly thermal treatment for wood materials due to its advantages of short treatment period and no wastewater and oil produced. However, it also affects the surface roughness of the treated wood, which in turn affects the wooden product properties. This study analyzed the influence of laser parameters on surface roughness and found that laser power increased the surface roughness of poplar wood, while feed speed and path spacing decreased the surface roughness. It is important to scientifically predict and guide the selection of reasonable modification process parameters for the modified wood surface.
MADERAS-CIENCIA Y TECNOLOGIA
(2022)
Article
Engineering, Electrical & Electronic
Zhaolong Zhu, Dong Jin, Zhanwen Wu, Wei Xu, Yingyue Yu, Xiaolei Guo, Xiaodong (Alice) Wang
Summary: This study focused on improving the cutting quality of beech wood during milling by investigating the changes in surface roughness under different cutting conditions. A relationship model between milling conditions and surface roughness was established using response surface methodology and adaptive network-based fuzzy inference system. The optimal milling condition, which includes a rake angle of 15 degrees, a spindle speed of 3357 r/min, and a depth of cut of 0.62 mm, was determined for achieving smooth surface in actual machining.
Article
Engineering, Electrical & Electronic
Rongrong Li, Fan Yang, Xiaodong Wang
Summary: Helical milling of Scots pine was studied to evaluate machinability based on surface roughness and milling power consumption. The results showed that surface roughness decreased with an increase in helical angle and rotation speed, while increased with an increase in milling depth. However, milling power consumption increased with an increase in helical angle and milling depth, but showed a slight downward trend with an increase in rotation speed. The optimized combination of helical angle, rotation speed, and milling depth were determined to improve surface quality and save power consumption.
Article
Materials Science, Paper & Wood
Lan Xie, Guojing He, Xiaodong (Alice) Wang, Xiao Tang, Roberto Crocetti
Summary: Timber-concrete composite systems are widely used due to their good mechanical performance and protection properties. However, there is a lack of design codes addressing their ductility and energy dissipation capacity.
Article
Chemistry, Multidisciplinary
Shuqiong Liu, Xiaoyan Wu, Jiapeng Hu, Zhenzeng Wu, Yuying Zheng
Summary: In this study, a series of three-dimensional polylactic acid/hydroxyapatite/graphene oxide drug-loaded biomimetic composite scaffolds with different concentrations of aspirin were successfully prepared, demonstrating good bioactivity and engineering performance.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
