Article
Construction & Building Technology
Junjie Feng, Xiaomin Jia, Xiaomei Dong, Pengbo Wang, Bing Xu, Zheng Wang
Summary: One strategy to improve compressive strength in recycled aggregate concrete (RAC) is the addition of fiber, yet little research has focused on the cyclic compressive behavior of hybrid fiber reinforced recycled aggregate concrete (HFRRAC). This study investigated the mechanical properties of HFRRAC with different fiber combinations and recycled coarse aggregate (RCA) replacement rates under cyclic compression. Results showed that the cyclic stress-strain curve for HFRRAC closely resembled the monotonic stress-strain curve. RCA replacement rates and fiber combinations had minimal effect on plastic strain and stress deterioration, while the addition of fibers improved stiffness degradation and energy dissipation. The proposed constitutive equations accurately described the cyclic compressive behavior of HFRRAC. Additionally, mesoscale numerical models were used to study the fracture mechanisms of HFRRAC under uniaxial compression loading, showing that the cohesive zone model was suitable for simulating the compressive behavior of HFRRAC, which primarily exhibited mixed fracture modes, particularly mode II fractures.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Shaolong Guo, Dongjian Zheng, Lihong Zhao, Qun Lu, Xiaoke Liu
Summary: The use of Recycled Plastic Fiber Reinforced Recycled Concrete (RPFRRC) can improve the mechanical properties of concrete and reuse waste. Adding an appropriate amount of recycled plastic fibers can enhance the compressive and flexural tensile strength of RPFRRC. Fiber length, confining pressure, and fiber volume ratio have significant influences on the performance of RPFRRC.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Dongming Huang, Zhenzhen Liu, Wentao Ma, Yiyan Lu, Shan Li
Summary: This paper proposes a new composite column-steel fiber-reinforced recycled concrete-filled GFRP tube (SFRACFFT) column and investigates its axial compressive performance. The results show that increasing the GFRP tube thickness and adding an appropriate amount of steel fibers can improve the axial stress of the column. Additionally, replacing all natural coarse aggregate with recycled coarse aggregate reduces the peak stress.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Huanhuan Yan, Danying Gao, Aofei Guo, Zhiqiang Gu, Dongdong Ji, Yu Zhang
Summary: This study investigated the bond behavior of steel bars with steel-polypropylene hybrid fiber reinforced recycled aggregate concrete (HFRAC) under monotonic and cyclic loadings. The bond response and inner damage evolution of specimens were monitored using the acoustic emission (AE) technique, and the microstructure of HFRAC was analyzed through scanning electron microscope (SEM). The experimental results showed that the bond strength degradation was more pronounced for HFRAC specimens under cyclic loading compared to monotonic loading. The degradation rate increased rapidly with the increase of displacement amplitude. The AE parameters analysis confirmed a good correlation between the results and the cracking process of the specimens. Bond-slip models of steel bars with HFRAC under monotonic and cyclic loadings were proposed based on the Weibull cumulative distribution function, taking into account the coupling effect of hybrid fibers and recycled coarse aggregates.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Mechanics
Dongming Huang, Zhenzhen Liu, Peng Liu, Yiyan Lu, Shan Li
Summary: This paper investigates the performance of steel fiber reinforced recycled concrete-filled GFRP tube columns, and proposes formulas for calculating the bias bearing capacity and mid-span bending moment.
COMPOSITE STRUCTURES
(2022)
Article
Construction & Building Technology
Pengtuan Zhao, Yue Huang, Zhenzhen Liu, Han Wang, Yiyan Lu
Summary: This study investigated the seismic performance of steel fiber-reinforced recycled concrete-filled steel tube (SRACFST) columns. The addition of steel fiber effectively compensated for the defects of recycled aggregate concrete (RAC) and improved lateral bearing capacity, ductility, and energy dissipation. However, higher axial compression ratio and concrete strength weakened the deformation capacity, ductility, stiffness stability, and strength stability. The study recommended the use of the AIJ-2001 code to calculate the compression bending bearing capacity of SRACFST columns and proposed a fiber modelling (FM) method for further elastoplastic analysis.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Mechanics
Ping Li, Zhenzhen Liu, Yiyan Lu, Chenlong Lin, Wentao Ma
Summary: An experimental study was conducted on cylindrical steel fiber reinforced recycled aggregate concrete (SFRAC) specimens subjected to hydrostatic pressure and dynamic axial loading. The effects of confining stress, strain rate, volume fraction of steel fiber, and replacement ratio of recycled coarse aggregate were investigated. The results showed that an increase in confining pressure led to changes in failure modes, increased peak strength and ductility. Steel fibers had little influence on failure modes, but significantly improved ductility and toughness. The addition of recycled coarse aggregates reduced peak strength by nearly 20%.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Zhenzhen Liu, Dongming Huang, Yiyan Lu, Shan Li
Summary: A comprehensive study was conducted to investigate the eccentric compressive behavior of steel-fiber-reinforced recycled concrete filled steel tube (SRCFST) columns. The effects of variables including eccentricity ratio, steel fiber volume, quality replacement rate of recycled aggregate, concrete strength grade, and diameter-thickness ratio of steel tube were analyzed. The results showed that the addition of steel fibers can offset the adverse effects of recycled aggregate on the performance of SRCFST columns, especially in cases with higher eccentricity ratios. Based on the unified theory, a calculation model was proposed to predict the ultimate capacity of SRCFST columns under combined loadings.
STRUCTURAL CONCRETE
(2023)
Article
Construction & Building Technology
Zhenzhen Liu, Dongming Huang, Yiyan Lu, Shan Li
Summary: A comprehensive study was conducted to investigate the eccentric compressive behavior of steel-fiber-reinforced recycled concrete filled steel tube (SRCFST) columns. Various variables were investigated, including eccentricity ratio, steel fiber volume, quality replacement rate of recycled aggregate, concrete strength grade, and diameter-thickness ratio of steel tube. The study analyzed the failure mode, load-lateral deflection behavior, and moment-curvature response of the columns. It was found that the use of recycled aggregate had little influence on the performance of SRCFST columns with smaller eccentricity ratios, but significantly reduced the ultimate load and deformability of columns with higher eccentricity ratios. The addition of steel fibers helped offset this adverse effect.
STRUCTURAL CONCRETE
(2023)
Article
Construction & Building Technology
Yuliang Chen, Qin He, Xin Liang, Zongping Chen, Hao Li
Summary: This study investigates the effects of three design variables, namely the replacement rate of recycled aggregate, the content of steel fiber, and the loading rate, on the stress-strain relationship and mechanical properties of steel fiber reinforced recycled concrete (SF-R-RAC) under cyclic loading. The failure mode and cyclic stress-strain curve law of SF-R-RAC are observed and summarized. The influence of different design variables on stiffness degradation and energy dissipation is described, while a piecewise function is used to fit the envelope of the cyclic stress-strain curve. This research provides a theoretical basis and experimental reference for further study of SF-R-RAC.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Jianyang Xue, Hechao Li, Rui Ren, Xin Zhang
Summary: The study reveals that the bond stress of steel reinforced recycled concrete declines significantly under cyclic reversed load, with energy dissipation mainly occurring in the falling and residual stages.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Yu Tang, Yuzhu Guo, Xudong Chen, Zhen Wang, Yang Wei
Summary: This study conducted an experimental investigation on the acoustic emission characteristics of concrete cylinders reinforced with steel fiber-reinforced composite bars (SFCB) under uniaxial compression. The results showed that the damage in SFCB-reinforced cylinders was mainly microcracks, while the damage in fiber-reinforced polymer (FRP) bar-reinforced cylinders was macroscopic cracks. Moreover, the damage process of SFCB was relatively stable and mild.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Junjie Feng, Guansheng Yin, Hongliang Tuo, Congge Wen, Zhu Liu, Jianhong Liang, Yunjie Zhang
Summary: The study investigated the fresh properties and uniaxial compressive behavior of recycled aggregate concrete reinforced with hybrid fibers, showing the effects of different fiber combinations and optimal synergy. Empirical formulas for predicting the performance of recycled aggregate concrete were proposed, offering an effective method to predict the behavior of recycled aggregate concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Civil
Hui Ma, Chenjun Jia, Jiacheng Xi, Jing Dong, Xicheng Zhang, Yanli Zhao
Summary: The study investigated the seismic behavior of a composite frame with steel reinforced recycled concrete columns and steel beams through experimental and numerical analysis. The results showed that the composite frame has good deformation capacity, energy dissipation capacity, and collapse resistance under earthquake conditions, and increasing material strength can improve horizontal bearing capacity and lateral stiffness of the frame while affecting deformation capacity.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Zongping Chen, Yuhan Liang, Linlin Mo, Maogen Ban
Summary: This study investigated the axial bearing capacity and residual properties of steel reinforced recycled aggregate concrete columns after elevated temperature through static loading tests and finite element analysis. The results showed that various parameters affected the residual bearing capacity, and elevated temperatures caused changes in concrete color and reduced bearing capacity.
STEEL AND COMPOSITE STRUCTURES
(2021)
Article
Biophysics
Antonetta B. C. Buskermolen, Hamsini Suresh, Siamak S. Shishvan, Andrea Vigliotti, Antonio DeSimone, Nicholas A. Kurniawan, Carlijn V. C. Bouten, Vikram S. Deshpande
BIOPHYSICAL JOURNAL
(2019)
Article
Materials Science, Multidisciplinary
Siamak S. Shishvan, Gabor Csanyi, Vikram S. Deshpande
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2020)
Article
Multidisciplinary Sciences
H. Suresh, S. S. Shishvan, A. Vigliotti, V. S. Deshpande
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2019)
Article
Chemistry, Physical
S. S. Shishvan, N. A. Fleck, R. M. McMeeking, V. S. Deshpande
JOURNAL OF POWER SOURCES
(2020)
Article
Mechanics
A. Vigliotti, S. S. Shishvan, R. M. McMeeking, V. S. Deshpande
Summary: The study shows that cell spreading, contractility, and mechano-sensitivity on a bed of micro-posts increase with the stiffness of the foundation. Traction forces exerted by cells are concentrated along the cell periphery and are independent of cell area on average. The increased foundation stiffness leads to higher levels of stress-fibre polymerization, causing both cell area and average tractions to increase.
Article
Materials Science, Multidisciplinary
S. S. Shishvan, N. A. Fleck, R. M. McMeeking, V. S. Deshpande
Article
Engineering, Mechanical
Siamak Soleymani Shishvan
Summary: A high-temperature discrete dislocation plasticity framework is used to predict the tensile and creep responses of Cu-Nb composites at 400 degrees C. The creep response is found to be dependent on the laminate length scale and stress, with experimental data and predictions showing good agreement.
INTERNATIONAL JOURNAL OF PLASTICITY
(2021)
Article
Chemistry, Physical
Siamak S. Shishvan, Norman A. Fleck, Vikram S. Deshpande
Summary: The study reveals the importance of considering power-law creep and dislocation motion in predicting void growth in the Li electrode. The modified Butler-Volmer kinetics for the interface flux associated with creep deformation of the Li electrode in a single-ion conductor solid electrolyte is key in understanding the process.
JOURNAL OF POWER SOURCES
(2021)
Article
Mechanics
Siamak S. Shishvan, Saeid Assadpour-asl, Emilio Martinez-Paneda
Summary: A new gradient-based formulation for predicting fracture in elastic-plastic solids is presented, utilizing a phase field model and strain gradient constitutive model to capture damage and material deformation. The role of plastic strain gradients is found to enhance fracture in sharp defects, but delay failure in non-sharp defects due to additional work hardening.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Mechanics
S. S. Shishvan, M. H. Dini Zarnagh, V. S. Deshpande
Summary: The study introduces a new modeling approach for elastomeric metamaterials by applying concepts from statistical mechanics. By developing a theoretical homogenization framework and utilizing the Nested Sampling algorithm, effective predictions for compressive responses of the composite materials are made, incorporating an additional internal state variable to characterize the vibrational modes of the microstructure.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
J. A. B. Agier, S. S. Shishvan, N. A. Fleck, V. S. Deshpande
Summary: The growth of voids at the electrode/electrolyte interface in solid-state Li batteries is analyzed using a framework that incorporates power-law creep deformation of the Li electrode and Li+ flux through a single-ion conductor solid electrolyte. The results suggest that void growth is influenced by the interfacial resistance, electrolyte conductivity, and the presence of dislocations within the electrode. The findings provide insights into the failure mechanisms of Li batteries due to void growth.
Article
Computer Science, Interdisciplinary Applications
Siamak S. Shishvan, Azam Rahgouy, Burigede Liu
Summary: In this study, an RVE-based virtual testing framework was developed to predict the shear behavior of fibre-reinforced polymer matrix composite materials. The framework utilizes the crystal plasticity formulation to model the constitutive behavior of the plies and accurately captures the shear response of the composites. The method was validated on two different composite materials and successfully predicted their shear behavior.
ENGINEERING WITH COMPUTERS
(2023)
Article
Chemistry, Multidisciplinary
Antonetta B. C. Buskermolen, Tommaso Ristori, Dylan Mostert, Mark C. van Turnhout, Siamak S. Shishvan, Sandra Loerakker, Nicholas A. Kurniawan, Vikram S. Deshpande, Carlijn V. C. Bouten
CELL REPORTS PHYSICAL SCIENCE
(2020)
Article
Computer Science, Interdisciplinary Applications
Gholamreza B. Golpasand, Masood Farzam, Siamak S. Shishvan
COMPUTERS AND CONCRETE
(2020)
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)
