Article
Agricultural Engineering
Jing Yuan, Qi Chen, Benhua Fei
Summary: Bamboo is mainly composed of fiber and parenchyma cells, and the gradient fiber distribution structure gives bamboo excellent mechanical properties and improves its heterogeneity. This study analyzed the real-time moisture content and distribution of adsorbed water in bamboo with different densities and proportions of fiber cells, revealing differences in hygroscopicity at the cell and sub-cellular levels. It was found that under high humidity, the moisture content of different parts of bamboo varied considerably, with the multilayer adsorbed water content increasing significantly.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Construction & Building Technology
Mingqian Wang, Kent A. Harries, Yuxiang Zhao, Qingfeng Xu, Zhuolin Wang, Yubing Leng
Summary: This study investigates the effects of moisture content on the mechanical properties of bamboo. Through a large-scale experimental study, the study aims to confirm, revise, and/or refute the standard relationships between mechanical properties and moisture content. The results show that strength properties, except tension strength, increase as moisture content falls below the fiber saturation point. The tension strength decreases as moisture content decreases. The correction factors identified in this study correlate well with the factors proposed in international standards, with potential areas for revision. Correcting mechanical properties to a standard moisture content can help in grading a large population of bamboo and promoting safe design.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Plant Sciences
Lin Guo, Tianguo Chen, Xue Chu, Kai Sun, Fen Yu, Feng Que, Zishan Ahmad, Qiang Wei, Muthusamy Ramakrishnan
Summary: This study focused on the developmental process of the Moso bamboo culm neck during the early, middle, and late elongation stages. The transcriptome analysis revealed the molecular mechanism of culm neck development, including the dense distribution of vascular tissues, increased lignin deposition, and the crucial roles of transcription factors.
Article
Plant Sciences
Wen Guo, Paolo Cherubini, Jian Zhang, Mai-He Li, Lianghua Qi
Summary: Leaf stomatal and anatomical traits have a strong influence on plant productivity. This study investigates the environmental adaptation mechanisms of these traits in moso bamboo forests and their relationship with ecosystem productivity. The results show that climate and soil factors significantly affect leaf stomatal and anatomical traits. Solar radiation and mean annual precipitation are the key drivers of variation in leaf stomatal and anatomical traits, respectively. Soil moisture and nutrients also have a significant impact on these traits. Network analysis reveals a significant correlation between leaf stomata and anatomical traits, with stomatal size playing a key role in adapting to environmental conditions. Structural equation modeling shows that leaf stomatal traits have a direct effect on bamboo ecosystem productivity. This study provides new insights into the prediction of bamboo forests under global climate change.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Jinpei Gao, Quan Li, Junbo Zhang, Kunkai Cui, Zhizhuang Wu, Man Shi, Xinzhang Song
Summary: Nutrient resorption can affect plant growth, litter decomposition, and nutrient cycling. The combined effects of nitrogen and biochar on the nutrient resorption of Moso bamboo show that nitrogen addition inhibits plant nutrient resorption, while biochar amendment enhances this negative effect in young bamboo but reduces it in mature bamboo.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Geochemistry & Geophysics
Jiankai Huang, Chen Pang, Jian Zhou, Yongzhen Li, Xuesong Wang
Summary: Accurate measurement of plant complex permittivity is crucial for remote sensing applications. The complex dielectric properties of moso bamboo were measured using the coaxial transmission/reflection method, revealing a better fit with a second-order polynomial model in terms of moisture content. The real parts of relative dielectric permittivity decrease with frequency, while the imaginary parts exhibit a decrease followed by an increase. The longitudinal direction of moso bamboo has a higher dielectric permittivity than the cross-sectional direction due to its anisotropic fibrocyte structure.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2021)
Article
Plant Sciences
Ruofei Zha, Tianguo Chen, Qingnan Liu, Qiang Wei, Feng Que
Summary: This study discovered a stable new dwarf variant of Phyllostachys edulis called Phyllostachys edulis f. exaurita T.G. Chen. The variant's height was found to be only 49% of the wild-type (WT) Moso bamboo. The decrease in internode number and length, as well as lower concentrations of IAA and zeatin in the buds, were identified as the causes of dwarfism in P. edulis f. exaurita. These findings are valuable for understanding the molecular mechanisms behind primary thickening growth in bamboo.
Article
Plant Sciences
Yaxiong Zheng, Fengying Guan, Shaohui Fan, Xinrong Yan, Lanying Huang
Summary: The study found that strip cutting in moso bamboo forests did not significantly affect litter production and nutrient return. However, annual litter biomass and nutrient return were significantly higher in reserved belts compared to the control group. Additionally, phosphorus and potassium resorption efficiencies in reserved belts were significantly higher during certain periods of bamboo growth compared to the control group.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Jie-Yu Cui, Ning Zhang, Jian-Chun Jiang
Summary: The effects of microwave assisted liquid hot water (MA-LHW) pretreatment on the chemical composition and fiber structure of Moso bamboo were investigated. The results showed that MA-LHW pretreatment had high selectivity for the degradation of hemicellulose in Moso bamboo, and the extracted hemicellulose could be used to prepare xylooligosaccharide. Moreover, MA-LHW pretreatment increased the removal of hemicellulose and lignin, and retained more cellulose with crystalline structure.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Forestry
Wenbo Zhang, Zehui Jiang, Yanting Chang, Benhua Fei, Yanjun Ma, Yayun Deng, Xue Zhang, Tao Hu
Summary: This study compared the cell structure characteristics of different bamboo varieties and analyzed the differences from a genetic perspective. The results showed that Moso bamboo (M) had the highest measurements in terms of fiber cell length, fiber cell width, length, and parenchyma width, while GJ had the lowest values in these measurements. Q had the smallest fiber wall thickness and highest fiber lumen diameter. This research provides reference data for the utilization of non-woody forest resources.
Article
Construction & Building Technology
Yu Luan, Yuting Yang, Lin Chen, Yifan Ma, Menghong Jiang, Benhua Fei, Huanrong Liu, Xinxin Ma, Xiubiao Zhang, Fengbo Sun, Changhua Fang
Summary: This study proposes an effective and environmentally friendly method that combines flattening and densification to modify the heterogenous structure and enhance the properties of natural bamboo. After modification, the density and mechanical properties of bamboo were significantly improved, and the weaker section was reinforced and possessed a strength equivalent to the sturdy part of natural bamboo. Furthermore, the tensile and bending properties of full-thickness bamboo splits were improved, and the structure became more stable.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Multidisciplinary Sciences
Qi Chen, Changhua Fang, Ge Wang, Xinxin Ma, Junji Luo, Meiling Chen, Chunping Dai, Benhua Fei
Summary: This study investigates the water vapor sorption behaviors of bamboo at different structural levels, revealing that at the cell wall level, longitudinal sorption rate and equilibrium moisture content are higher than transverse; at the cellular scale, pits result in enhanced transverse sorption rate and moisture content compared to longitudinal; at the macro scale, vessel cells largely control the sorption rate and moisture content of bamboo blocks.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Paper & Wood
Ge Han, Rongrong Li, Chuangui Wang
Summary: The study found that the mechanical strength of moso bamboo increases with age, with samples without outer layer showing decreased performance. The outer layer of bamboo plays a crucial role during bending, while the inner layer, relatively brittle, has negative effects on flexural strength.
Article
Forestry
Qi Chen, Yingyue He, Shaozhi Lai, Jinqiu Qi, Shaobo Zhang, Shanshan Jia, Hui Xiao, Yuzhu Chen, Yongze Jiang, Benhua Fei, Jiulong Xie
Summary: In this study, the 3D structural changes of the vascular bundle in the moso bamboo node were visualized and quantified, and the compressive properties and failure mechanisms of the bamboo node were discussed based on the structural changes. The results showed that the bamboo node had three types of horizontal vascular bundles: branching, cross-linking, and thickening. The vertical vascular bundles in the node increased in cross-sectional area and shifted to the outer side after passing through the node. The research provided key information for understanding the structure and mechanical properties of bamboo and its potential applications.
Article
Plant Sciences
Chunju Peng, Yandong Song, Chong Li, Tingting Mei, Zhili Wu, Yongjun Shi, Yufeng Zhou, Guomo Zhou
Summary: Mixed stand plantations of moso bamboo and Chinese fir exhibited better physiological-ecological performance compared to monoculture plantations, with higher leaf net photosynthesis rate, antioxidant enzyme activities, and chlorophyll content. However, there were some decreases in non-photochemical quenching in Chinese fir and water use efficiency in the mixed stand.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Yingji Wu, Yunyi Liang, Changtong Mei, Liping Cai, Ashok Nadda, Quyet Van Le, Yucheng Peng, Su Shiung Lam, Christian Sonne, Changlei Xia
Summary: Nanocellulose based gas barrier materials have gained increasing importance due to their environmentally friendly nature, but they face challenges such as water absorption and shape deformation under high humidity conditions, which compromise their gas barrier performance.
Article
Environmental Sciences
Haoran Ye, Yang Wang, Qinghan Yu, Shengbo Ge, Wei Fan, Minglong Zhang, Zhenhua Huang, Maurizio Manzo, Liping Cai, Lishu Wang, Changlei Xia
Summary: Green composite processing technology of wood fibers is a necessary choice for sustainable global development. The research used waste poplar powder of different particle sizes to prepare glue-free biocomposites with good mechanical and waterproof properties through hot-molding. Biocomposites made of larger size wood powder showed better tensile strength, while those made of smaller size wood powder exhibited greater bending strength. The biocomposites had a low thickness swelling rate after soaking in water for 24 hours.
Article
Forestry
Bingbin Kuai, Jiewei Tong, Yaoli Zhang, Tianyi Zhan, Jianxiong Lu, Liping Cai
Summary: This study successfully prepared densified wood from faber fir by chemical pretreatment and high-temperature pressing, which exhibited significantly improved performances compared to natural wood. The densified wood with a pretreatment process of 10 hours had extremely small cell lumen size, high density, and relatively higher crystallinity. In addition, infusing paraffin improved the dimensional stability of the high-strength wood without compromising its strength.
Article
Agricultural Engineering
Zehui Ju, Tianyi Zhan, Nicolas Brosse, Yang Wei, Haiyang Zhang, Jianxin Cui, Xiaoning Lu
Summary: This study investigated the effects of acid/alkali pretreatment and high voltage electrostatic force (HVEF) on windmill palm fiber (WPF) and its application in reinforced laminated veneer lumber (LVL). The results showed that alkali treatment efficiently improved the mechanical properties of WPF, while HVEF treatment enhanced the chemical composition and wettability of WPF. The synergistic effect of acid/alkali pretreatment and HVEF improved the interfacial properties between the adhesive and WPF.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Materials Science, Paper & Wood
Fengze Sun, Kaiwen Chen, Yujing Tan, Hui Peng, Jiali Jiang, Tianyi Zhan, Jianxiong Lyu
Summary: The study investigated the water transport in wood through experiments and simulations. The results showed that wood exhibited non-uniform and directional behaviors for water imbibition, with variations between different tree species. Poplar showed higher water uptake and faster migration compared to Chinese fir. Water preferentially accumulated at the wetting front in Chinese fir. The heterogeneous water uptake and faster water migration in latewood were observed in Chinese fir. The simulation assessments were consistent with the experimental results.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Kaiwen Chen, Yujing Tan, Fengze Sun, Jianyi Zhu, Hui Peng, Jiali Jiang, Jianxiong Lyu, Tianyi Zhan
Summary: This study investigated the electrochemical deposition of titanium dioxide (TiO2) particles on the surface of heat-treated wood and evaluated its anti-weathering properties through natural and artificial weathering tests. The TiO2 and Ti-OH formed during the electrochemical deposition process played a crucial role in reducing degradation and discoloration of heat-treated wood. The stability of wood color was maintained, and the photodegradation of lignin was effectively alleviated. The results suggest the feasibility of using electrochemical deposition of TiO2 as an effective strategy for industrial wood modification.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Construction & Building Technology
Bingbin Kuai, Ziheng Wang, Jingshu Gao, Jiewei Tong, Tianyi Zhan, Yaoli Zhang, Jianxiong Lu, Liping Cai
Summary: In this study, an effective method for preparing dimensionally stable wood with high mechanical strength and flame retardancy was proposed. The modified wood exhibited significantly increased flexural strength, modulus of elasticity and compressive strength compared to unmodified wood. The method also improved the dimensional stability and fire-resistant performance of the wood.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Chunheng Zhou, Zongping Chen, Zhenhua Huang, Liping Cai
Summary: In this study, a double spiral reinforcement was developed for reliable lateral confinement in square reinforced concrete columns. The structural behavior of the columns was investigated through testing, and it was found that the double spirals provided satisfactory confinement, increasing the load-carrying capacity, stiffness, and ductility of the columns.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Forestry
Qian He, QianQian Hou, Fangxin Wang, Kailai Wang, Daiyuan Zhang, Yongfan Gong, Tianyi Zhan, Xiaoning Lu, Brosse Nicolas, Dingyi Yang, Shengcai Li
Summary: Through studying the adhesive reaction and wetting behavior during HVEF treatment, it was found that PF adhesive underwent extensive curing reactions, leading to improved bonding strength. The decrease in adhesive absorptivity was in the order of tangential section < cross section < radial section. The radial-combined composites achieved the highest bonding strength, with a significant correlation between absorptivity and bonding strength. Higher dispersion degree of absorptivity was observed for longitudinal sections, which is attributed to the type and size of pores among wood sections.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Chemistry, Multidisciplinary
Kaiwen Chen, Hongchen Yu, Hui Peng, Jiali Jiang, Jianxiong Lyu, Tianyi Zhan
Summary: This study reports an effective method for improving the weathering resistance of heat-treated wood by activating metal particles under a high voltage electrostatic field, resulting in the formation of a deposited layer on the wood surface. The metal activated heat-treated wood showed less chromaticity changes and surface roughness after artificial and natural weathering tests, surpassing the performance of the original heat-treated wood.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Construction & Building Technology
Tianyi Zhan, Rui Li, Zhiting Liu, Jianxiong Lyu, Hui Peng
Summary: Hygroscopic movement in plants is a self-shaping response that doesn't require external force or energy. Applying this principle to biomimetic wooden building systems is challenging, as achieving programmed shape changes on an appropriate time scale is difficult.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Agricultural Engineering
Zihao Wang, Xuan Wang, Yaoli Zhang
Summary: Based on the selection of different positions of bamboo and adjustment of delignification time, this study optimized the process of preparing transparent bamboo. The transparent bamboo prepared from the middle layer bamboo after a 5-hour delignification treatment showed the best comprehensive performance, with a light transmittance of 89.6% and haze of 43.3%. It has excellent tensile strength (89.7 MPa), good thermal insulation performance (0.187Wm-1K-1), certain UV aging resistance, thermal dimensional stability, and waterproof properties for outdoor conditions. It not only allows for the selection of transparent bamboo with the best performance, but also minimizes the use of raw materials, expanding its application range.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Yujing Tan, Kaiwen Chen, Jianyi Zhu, Fengze Sun, Hui Peng, Tianyi Zhan, Jianxiong Lyu
Summary: Metal organic frameworks (MOFs) have great potential as heterogeneous catalysts for sulfate radical-based advanced oxidation. However, the aggregation of MOF crystals and the complicated recovery procedure impede their practical applications. To address this, a gravity-driven rattan-based catalytic filter was designed, where ZIF-67 was grown on the inner surface of rattan channels using a continuous flow method. The filter exhibited excellent catalytic activity, recyclability, and stability for organic pollutant degradation, making it an effective strategy for developing renewable and continuous catalytic systems for wastewater treatment.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Forestry
Liang Wen, Xuan Wang, Qin Xu, Jiewei Tong, Wanwan Zhao, Yaoli Zhang, Jianxiong Lv, Liping Cai, Changlei Xia
Summary: The monthly variation of dynamic viscosity and interfacial tension of xylem sap in different tree species and their influencing factors were analyzed. The dynamic viscosity and interfacial tension of poplar and metasequoia samples changed in a similar manner each month, but the metasequoia samples had higher values than the poplar samples. The differences in organic components and inorganic cations concentration in their xylem sap due to disparate xylem structures resulted in the variation in dynamic viscosity and interfacial tension between poplar and metasequoia samples.
Article
Green & Sustainable Science & Technology
Jianyi Zhu, Hui Peng, Xiaoning Lu, Jianxiong Lyu, Tianyi Zhan
Summary: By statistically analyzing the physiomechanical properties of domestic wood species in China, it was found that the mechanical properties were closely related to wood density, while shrinkage properties showed less correlation. Principal component analysis proved to be an effective method to explore the information of physiomechanical properties. Based on the cluster results of physiomechanical properties, a reasonable grading method was proposed. These statistical results provided insights into analyzing the properties of domestic Chinese wood species and were helpful for developing tree breeding strategies and wood processing technologies.
JOURNAL OF RENEWABLE MATERIALS
(2023)
Article
Construction & Building Technology
Qi Jiang, Wei Liu, Shaopeng Wu, Xuanwen Gou
Summary: This study analyzes the erosion mechanisms of NaCl solution on asphalt concrete and finds that NaCl solution softens asphalt and promotes the intrusion of crystalline salt into it. Salt crystallization alters the surface roughness of aggregates, resulting in a decrease in skid resistance but an improvement in compressive strength. Additionally, the concentration of NaCl solution initially has no significant impact on the mechanical performance of asphalt concrete, but its domination gradually increases with the intensification of cyclic effects.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Lili Kan, Lan-qing Dai, Ning Kong, Bin Peng, Fei Wang
Summary: This paper investigates the effect of freezing and thawing cycles on the tensile behavior of cracked ultra-high performance concrete (UHPC). The results show that long-term freezing and thawing action deteriorates the cracking strength, tensile strength, tensile strain, and strain energy of cracked UHPC. On the other hand, the action of water generally favors the development of tensile properties of UHPC. The crack distribution tends to be unsaturated under freezing and thawing environment, and the re-hydration reaction is hindered. The pore structure near the crack varies under different environments.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Xin Xiao, Jingwei Li, Qingke Meng, Xiangshan Hou, Yanhui Liu, Xujiang Wang, Wenlong Wang, Shengtao Lu, Yuzhong Li, Yanpeng Mao, Tong Li
Summary: Preparing gypsum-based self-leveling mortar (GSLM) using beta-hemihydrate gypsum and solid wastes-derived sulfoaluminate cement (WSAC) can improve the mechanical performance of the mortar, but phosphorus impurities can weaken the hydration speed and degree.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Sihang Bao, Junzhen Di, Yanrong Dong, Ziqing Gao, Qing Gu, Yuanfang Zhao, Hongyu Zhai
Summary: Tailings dam break and leakage accidents pose a threat to the safety of people in mining areas and cause severe environmental pollution. This study focuses on solidifying tailing sand using microbial induced calcite precipitation (MICP) to improve strength and fix heavy metals. The curing time of MICP bio-cemented tailings is found to significantly impact the strength of tailings, while its effect on heavy metal fixation is minimal. The optimized MICP curing time is 10 days, resulting in improved strength and cementation of tailings particles.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Ferhat Benmahiddine, Fares Bennai, Achraf Charaka, Ameur El Amine Hamami, Abdelkader Tahakourt, Rafik Belarbi
Summary: This paper studied the effects of hysteresis on the hygrothermal behavior at the building scale. Through laboratory validation and numerical simulations, it was found that hysteresis has a significant impact on the relative humidity and total heat fluxes in buildings, while it does not have a noticeable effect on temperature variations.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
You Gao, Wei He, Xiayang Zhang, De'an Sun, Pei Li
Summary: This study determined the boundary line between the swelling and compression deformation zone in lateritic clay through wetting tests, and proposed a simple bimodal SWRC model. It also found that the existing strength model underestimated the tested values in the medium to high suction range, therefore a segmented strength equation was introduced for enhanced predictions of the strength properties of lateritic clay.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Prabhath Ranjan Kumar Soda, Asheer Mogal, Kalyan Chakravarthy, Nikhil Thota, Nimish Bandaru, Sanjay Kumar Shukla, K. M. Mini
Summary: This study investigates the use of encapsulated bacteria to improve the self-healing ability of concrete. Through various tests, it is found that using 20% cement-coated alginate beads (CCAB) and 5% nanosilica (NS) can achieve optimal strength and healing. This research is significant for enhancing the durability of concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Shizhe Wang, Haiping Wu, Wen Yang, Wei Wang, Zhibo Zhu, Kun Nie, Luoxin Wang, Hua Wang, Jing Wu
Summary: In this study, photothermal-heat storage concrete (PHSC) was developed with excellent photothermal conversion performance and heat storage capacity. By absorbing and storing solar energy during the day and releasing it at night, PHSC can effectively reduce energy consumption in buildings.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Robin Deb, Jialuo He, Geetika Mishra, Yaghoob (Amir) Farnam
Summary: Incorporation techniques of phase change materials in cementitious composites have a significant influence on thermal properties. This study investigated the thermal behavior of low-temperature PCM when subjected to varying temperature change rates and pore confinement inside the porous network of lightweight aggregates. The results showed that ramp rates affect the nucleation and crystallization growth process during the phase transition, and the pore structure of the aggregates affects the supercooling phenomenon and confinement pressure of the PCM.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Eduardo Ferreira, Payam Sotoudeh, Dagmar Svecova
Summary: This study investigates the fatigue behavior of concrete under different stress reversal conditions. The results indicate that stress reversal generally causes more severe damage and reduces the cycles to failure compared to tensile fatigue. Additionally, adding some level of compression contributes to the energy required for failure under stress reversal fatigue. Specimens with higher concentration of fractured aggregates achieve longer fatigue lives.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Mag Raj Gehlot, Sandeep Shrivastava
Summary: This study evaluates the compatibility relationship between plaster bonds and the substrate under an accelerated aging environment, and finds that incorporating an appropriate amount of granite cutting waste can improve the strength parameters and adhesion of the cement mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Min Zhang, Qirui Luo, Mingke Deng, Shixing Zhao
Summary: This study investigated the bond behavior between carbon FRCM composites with added short fibers and concrete substrates. The effects of different factors were considered and 36 specimens were tested and discussed. The experimental results were analyzed in terms of failure mode, load-slip curve, and characteristic parameters, and the contribution of weft yarns was taken into account in the developed bondslip model.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Dengkai Liu, Hongniao Chen, Ray Kai Leung Su
Summary: The susceptibility of building stones to fire and high temperature was investigated in this study by examining their physical and mechanical properties. The results show that both compressive and tensile properties of stones are affected by temperature changes. The tensile strength is particularly sensitive to temperature changes, requiring special attention to the components subjected to tensile stress in stone buildings. Principal component analysis was used to predict the mechanical properties of stones, providing a new method for calculating the residual mechanical properties after high temperature or fire.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Joso Maria Raposo, Eduardo Cavaco, Luis Costa Neves, Eduardo Julio
Summary: This paper investigates the correlation between the friction coefficient and the surface roughness of concrete-to-concrete interfaces. Experimental tests were performed on specimens with different surface treatments, and the surface roughness parameters were analyzed and correlated with the shear strength and friction coefficient. The results showed that certain roughness parameters had a strong positive correlation with the friction coefficient, while others had little or no correlation. A novel combined roughness parameter with optimized correlation was proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Construction & Building Technology
Chiara Riccardi, Massimo Losa
Summary: The interest in using bio materials in asphalt pavements is growing due to economic reasons and environmental benefits. This study aimed to review the use of bio extenders as additives in binders, with a focus on replacements greater than 20% of fossil binder. The properties of bio-extended binders were found to vary substantially depending on the biomass source and production process.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
