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A Review of Basic Mechanical Properties of Bamboo Scrimber Based on Small-Scale Specimens

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Journal of Renewable Materials 2024年第4期12卷 869-894页

作者： Xin Xue Haitao li Rodolfo lorenzo College of Civil Engineering Nanjing Forestry UniversityNanjing210037China National-Provincial Joint Engineering Research Center of Biomaterials for MACHINERY PACKAGE Nanjing Forestry UniversityNanjing210037China Jiangsu Engineering Research Center of Bamboo and Wood Carbon FixationMaterials and Structures Nanjing Forestry UniversityNanjing210037China Department of Civil Environmental and Geomatic EngineeringUniversity College LondonLondonWC1E 6BTUK

This review summarizes the existing knowledge about the mechanical properties of bamboo scrimber(BS)in *** to literature reviews,the strength of BS under different load modes is affected by a series of factors,such as the type of original bamboo,growth position,resin content,treatment method and ***,different production processes can be adopted according to different requirements,and bamboo scrimbers can also be classified *** addition,this review summarizes the changes in different factors considered by scholars in the research on the mechanical properties of BS,so that readers can have an overall understanding of the existing research and make more innovative and valuable research on this *** review provides and discusses the conclusive observations,the current research gaps and future research directions on the mechanical properties of BS.

关键词： Bamboo scrimber manufacturing process mechanical properties failure modes constitutive model

lithium-Metal Free Sulfur Battery Based on Waste Biomass Anode and Nano-Sized li_(2)S Cathode

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Energy & Environmental Materials 2024年第2期7卷 39-47页

作者： Pejman Salimi Eleonora Venezia Somayeh Taghavi Sebastiano Tieuli lorenzo Carbone Mirko Prato Michela Signoretto Jianfeng Qiu Remo Proietti Zaccaria Istituto Italiano di Tecnologia via Morego 30Genoa 16163Italy Department of Chemistry and Industrial Chemistry University of Genovavia Dodecaneso 311-16146Genoa Italy CATMAT Lab Department of Molecular Sciences and NanosystemsCa'Foscari University Venice and INSTM ConsortiumRU of VeniceVia Torino 15530172Venezia Mestre Italy Department of Physics Shaoxing UniversityShaoxing 312000China

The realization of a stable lithium-metal free(liMF)sulfur battery based on amorphous carbon anode and lithium sulfide(li_(2)S)cathode is here *** particular,a biomass waste originating full-cell combining a carbonized brewer's spent grain(CBSG)biochar anode with a li_(2)S-graphene composite cathode(li_(2)S70Gr30)is *** design is particularly attractive for applying a cost-effective,high performance,environment friendly,and safe anode material,as an alternative to standard graphite and metallic lithium in emerging battery *** anodic and cathodic materials are characterized in terms of structure,morphology and composition through X-ray diffraction,scanning and transmission electron microscopy,X-ray photoelectron and Raman ***,an electrochemical characterization comprising galvanostatic cycling,rate capability and cyclic voltammetry tests were carried out both in half-cell and full-cell *** systematic investigation reveals that unlike graphite,the biochar electrode displays good compatibility with the electrolyte typically employed in sulfur *** CBSG/li_(2)S70Gr30 full-cell demonstrates an initial charge and discharge capacities of 726 and 537 mAh g^(-1),respectively,at 0.05C with a coulombic efficiency of 74%.Moreover,it discloses a reversible capacity of 330 mAh g^(-1)(0.1 C)after over 300 *** on these achievements,the CBSG/li_(2)S70Gr30 battery system can be considered as a promising energy storage solution for electric vehicles(EVs),especially when taking into account its easy scalability to an industrial level.

关键词： biochars ether-based electrolytes lithium sulfide lithium-metal free batteries superior cycling stability

A rapid and visual detection method for Crimean-Congo hemorrhagic fever virus by targeting S gene

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Journal of Integrative Agriculture 2024年第6期23卷 2149-2153页

作者： Xingqi liu Zengguo Cao Boyi li Pei Huang Yujie Bai Jingbo Huang Zanheng Huang Yuanyuan Zhang Yuanyuan li Haili Zhang Hualei Wang State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases/Key Laboratory for Zoonosis Research of the Ministry of Education Institute of ZoonosisCollege of Veterinary MedicineJilin UniversityChangchun 130062China Key Laboratory of Special Pathogens and Biosafety Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhan 430071China

Crimean-Congo hemorrhagic fever(CCHF)is a zoonotic disease caused by the CCHF virus(CCHFV),which is primarily transmitted by ticks(lorenzo Juanes et al.2023).It is an emerging disease that occurs sporadically in Africa,Asia,and Europe,with a high morbidity and mortality rate,as high as 30%in humans(Ceylan et al.2013).CCHFV,belonging to genus Nairovirus,family Bunyaviridae,was first identified in the Congo in the 1960s.

关键词： hemorrhagic fever

A Review on the Mechanical Behaviour of Bamboo Reinforced Concrete Beams

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Journal of Renewable Materials 2022年第12期10卷 3629-3657页

作者： Usama Sayed Assima Dauletbek Xue Xin Rodolfo lorenzo Haitao li College of Civil Engineering Nanjing Forestry UniversityNanjing 210037China Joint International Research Laboratory for Bio-composite Building Materials and Structures Nanjing Forestry UniversityNanjing210037China University College London LondonWC1E 6BTUK

In light of the increasing demand for sustainable building materials,the effectiveness of bamboo utilization in various fields has become the object of scientists'close *** increased interest in bamboo is explained by its sustainable characteristics,which make it the most preferred material for environmentally friendly and cost-effective construction compared to conventional *** of bamboo is vast and diverse:from decora-tion and furniture to structural members and re *** to the low price,rich resources,and high ela sticity,bamboo culms have also been used as an alternative to steel reinforcement in concrete ***-sive research has been done to assess feasibilty of bamboo reinforcement in structural elements made of *** article discusses the mechanical properties of three types of structural bamboo reinforced concrete(BRC)*** original papers on the mechanical behaviour of structural BRC members were studied,and the fundamental properties induding typical failure modes,reasons of failure,load displacement relationships,and influencing factors were discussed and *** and conclusions of the review will contribute to deep understanding of structural feasibility of BRC beams and serve as a base for future research.

关键词： Concrete bamboo bamboo reinforced concrete mechanical behaviour

Review on Bond Properties between Wood and Fiber Reinforced Polymer

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Journal of Renewable Materials 2020年第8期8卷 993-1018页

作者： Zhen Wang Haitao li Rodolfo lorenzo Ileana Corbi Ottavia Corbi Changhua Fang College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Department of Biomaterials International Centre for Bamboo and RattanBeijing100102China University College London LondonWC1E 6BTUK University of Naples Federico II Naples80133Italy

Retrofitting of existing ancient and modern timber structures has been an important project *** it triggers a need of excellent strengthening methods,so does the strengthening of newly built *** strengthening methods have shortcomings such as high costing and destroying the aesthetic of the structure,many of which can be overcome by means of using fiber reinforced polymer(FRP)***,the behavior of FRP-towood systems has yet to be thoroughly researched compared with their FRP-toconcrete or FRP-to-steel *** FRP retrofitting and strengthening timber structures has a promising future,better understanding of their failure modes will enable more precise designs balancing safety and *** of the most common FRP-to-wood systems in the literature are discussed in this paper,namely,the externally bonded reinforcement(EBR),the near-surface mounted(NSM)and the glued-in rods(GiR)*** of the FRP from the substrate is one of the most common failure modes,which exhibits the significance of the interface bond between FRP laminates and ***,bond properties and behavior of FRP-to-wood composite systems are described,parameters influencing the composite action are summarized in this paper,previous works on the bond interface of FRP and timber element are reviewed and future topics are also *** work can provide a reference for future research and engineering applications.

关键词： FRP wood bond strength strengthening retrofitting

A Review of Experimental Research on the Mode I Fracture Behavior of Bamboo

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Journal of Renewable Materials 2023年第6期11卷 2787-2808页

作者： Yue Chen Haitao li Lei Gao Wei Xu Rodolfo lorenzo Milan Gaff College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Joint International Research Laboratory for Bio-Composite Building Materials and Structures Nanjing Forestry UniversityNanjing210037China Department of Civil and Airport Engineering Nanjing University of Aeronautics and AstronauticsNanjing211106China University College London LondonWC1E 6BTUK Department of Furniture Design and Habitat BrnoMendel University in BrnoBrno61300Czech Republic Faculty of Civil Engineering Experimental CentreCzech Technical University in PragueThakurova 7Prague16629Czech Republic

Bamboo is an eco-friendly material with light weight,high strength,short growth cycle and high sustainability,which is widely used in building *** bamboo has further promoted the development of modern bamboo structures due to its unrestricted size and ***,as a fiber-reinforced material,fracture damage,especially Mode I fracture damage,becomes the most likely damage mode of its structure,so Mode I fracture characteristics are an important subject in the research of mechanical properties of *** paper summarizes the current status of experimental research on the Mode I fracture properties of bamboo based on the three-point bending(TPB)method,the single-edge notched beam(SENB)method,the compact tension(CT)method and the double cantilever beam(DCB)method,compares the fracture toughness of different species of bamboo,analyzes the toughening mechanisms and fracture damage modes,discusses the applicability of different theoretical calculation methods,and makes suggestions for future research priorities,aiming to provide a reference for future research and engineering applications in related fields.

关键词： Mode I fracture properties test method toughening mechanism fracture damage modes

A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

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Journal of Renewable Materials 2022年第2期10卷 273-300页

作者： Assima Dauletbek Haitao li Rodolfo lorenzo Ileana Corbi Ottavia Corbi Mahmud Ashraf College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Joint International Research Laboratory for Bio-Composite Building Materials and Structures Nanjing Forestry UniversityNanjing210037China University College London LondonWC1E 6BTUK University of Naples Federico II Naples80133Italy Deakin University GeelongVIC 3216Australia

Over the past decade,the physical and mechanical performances of laminated bamboo lumber(LBL)–a bamboo-based structural material,have been extensively studied using experimental,analytical,and numerical *** paper presents a review of existing knowledge in the literature about the mechanical properties of *** paper involved the review of the response of LBL to different types of loading such as tension,bending,compres-sion,and *** on results of the literature reviewed,the strength of LBL parallel to grain was 90–124 MPa with MOE of 10700 MPa in tension,29.55–72.60 MPa,and MOE of 8396–11022 MPa in compression,63.87–128.4 MPa,and MOE of 8320–10912 MPa in bending,and 7.15–17.5 MPa in *** average strength of LBL was similar and in some cases exceeded the average values of bamboo-or wood-based materials,while the variability of its mechanical parameters was *** variability in strength values of LBL was affected by bamboo species,density and thickness of bamboo strips,growth portion,type of treatment,strips arrange-ments,and type of adhesive which in turn calls for classification of LBL by strength grades,degree of hardness,the capability of impregnation and penetration,as well as by areas of application in *** study pro-vided and discussed concluding observations,the current research gap,and future research directions on the mechanical properties of LBL.

关键词： Laminated bamboo lumber mechanical properties composites

Effects of Freeze-Thaw Cycles on Physical and Mechanical Properties of Glulam Exposed to Outdoor Environment

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Journal of Renewable Materials 2021年第7期9卷 1293-1307页

作者： Ruyuan Yang Haitao li Assima Dauletbek Mahmud Ashraf Rodolfo lorenzo Youfu Sun Yuehong Wu College of Materials Science and Engineering Nanjing Forestry UniversityNanjingChina College of Civil Engineering Nanjing Forestry UniversityNanjingChina University College London LondonWC1E 6BTUK School of Engineering Deakin UniversityGeelongVIC 3216Australia

This paper presents an experimental investigation to identify suitable indices to assess durability of glulam when subjected to freeze-thaw cycles in an exposed *** this study,two types of glulam specimens were tested for their performance when subjected to different levels of aging due to freezing and *** of aging treatment on various parameters including thickness swelling rate,static bending strength,elastic modulus,shear strength,and peeling rate of adhesive layer were *** results showed that freeze-thaw aging treatment did not affect the water-resistance of the specimens as measured by thickness swelling rate and had little effect on the dimensional stability of the ***,the applied aging treatment weakened the bending resistance of the glulam specimens with more pronounced effects on on low-density *** the other hand,bond strength of high-density wood was relatively more affected due to the appliedfreeze-thaw *** highdensity wood,it is suggested that the shear strength of the adhesive layer be taken as an important index to determine the durability of freeze-thaw cycles *** low-density wood,on the other hand,the static bending strength can be used as an index to determine the durability of glulam under freeze-thaw cycles aging.

关键词： Freeze-thaw cycles structural glulam durability wood failure percentage accelerated aging

Research and Application Progress of Straw

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Journal of Renewable Materials 2023年第2期11卷 599-623页

作者： Ben Chen Sarah Mohrmann Haitao li Milan Gaff Rodolfo lorenzo Ileana Corbi Ottavia Corbi Kaidong Fang Min li College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Joint International Research Laboratory for Bio-Composite Building Materials and Structures Nanjing Forestry UniversityNanjing210037China Department of Furniture Design and Habitat BrnoMendel University in BrnoBrno61300Czech Republic University College London LondonWC1E6BTUK University of Naples Federico II Naples80133Italy lianyungang Baolisen Industrial Co. Ltd.Lianyungang222500China

Straw is a general term for the stem and leaf parts of mature crops,and is a multi-purpose renewable biomass energy resource in the agricultural *** prospect of comprehensive utilization of straw has become broad with the development of agricultural production,the advancement of science and technology,and the improvement of the level of agricultural *** comprehensive utilization of straw plays an important role in enhancing the sustainable development ability of agricultural economy and improving the current situation of comprehensive utilization of agricultural resources in my *** paper briefly combs the development history of straw and the prospect and current situation of comprehensive utilization,and expounds the separation technology of straw components,straw man-made panels,straw concrete,straw returning technology and oyster mushroom *** focuses on the description of the component separation technology of straw and the manufacturing process of straw-based *** different separation methods and separation effects of cellulose,hemicellulose and lignin were introduced in detail,and the static yield strength(MOR),internal bonding strength(IB)and water absorption thickness of several common straw-based panels were compared and studied(TS).Finally,it summarizes the benefit analysis of the comprehensive utilization of straw by scholars from the perspective of economics,and summarizes the corresponding measures based on their own views.

关键词： Straw comprehensive utilization component separation technology straw-based panel straw concrete