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Article
Engineering, Civil
Zhaochao Li et al.
Summary: This study proposes a new method to rehabilitate deteriorated pipelines using a novel thin-walled polyhedral liner with functionally graded porous (FGP) metal and graphene platelets (GPLs). The liner's buckling behavior is analyzed due to underground water flow and hydrostatic pressure. Parametric evaluations are conducted to investigate the influence of key parameters on the buckling pressure. The findings show that the proposed method yields consistent results compared to conventional circular liners and the buckling pressure is highly dependent on certain parameters.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Ceramics
Fuzhou Mao et al.
Summary: In this work, a three-dimensional hierarchical CNTs/VO2 composite microsphere was successfully synthesized using an ultrasonic atomization process. The addition of CNTs improved impedance matching and provided multiple attenuation modes. The highly conductive CNTs enhanced conductivity and the heterogeneous interfaces between CNTs and VO2 generated strong polarization loss. The 3D structure not only benefited the stability of the structure but also extended the paths of electromagnetic wave reflection and scattering, resulting in increased energy absorption.
CERAMICS INTERNATIONAL
(2023)
Article
Computer Science, Interdisciplinary Applications
Junfei Zhang et al.
Summary: This study proposes a machine learning approach for shear design of RC beams. A random forest model is constructed and the hyperparameters are tuned using an improved search algorithm and inertia weight. The developed model accurately predicts the shear strength of RC beams with and without stirrups. This method shows powerful and efficient capabilities in shear design, leading to intelligent construction.
ENGINEERING WITH COMPUTERS
(2022)
Article
Materials Science, Ceramics
Wei Zhou et al.
Summary: A novel ternary layered ceramic of Y3Si2C2 was successfully synthesized on the surface of KD-SA SiC fiber for the first time, significantly improving the EMW absorption performance and achieving effective absorption bandwidth of 5.44 GHz.
CERAMICS INTERNATIONAL
(2022)
Article
Construction & Building Technology
Jianwei Li et al.
Summary: The study investigates the feasibility of utilizing electrically conductive cementitious composite (ECCC) in various applications. It is found that while graphite significantly improves conductivity, it also reduces the mechanical performance. By incorporating steel slag and blast furnace slag as substitutes for graphite, the mechanical and conductive performance of ECCC can be improved.
STRUCTURAL CONCRETE
(2022)
Article
Energy & Fuels
Yuantian Sun et al.
Summary: This study investigates the use of stress relief technique in maintaining the stability of coal mine roadways. Theoretical analysis, numerical simulation, and field tests show that this technique effectively controls deformation and anchor cable stress, ensuring the long-term stability of the roadways.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Materials Science, Multidisciplinary
Junbo Sun et al.
Summary: This study proposes methods for activating waste glass powder and combines experimental results, machine learning prediction, and multi-objective optimization design to provide a comprehensive basis for the practical application of activated waste glass powder concrete.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Junbo Sun et al.
Summary: Waste glass can be effectively utilized in construction by chemical activation and mechanical grinding. The optimal dosage of chemical activators and the combined activation method were determined. A multi-objective optimization model based on the firefly algorithm and machine learning was used to optimize the strength, alkali-silica reaction expansion, and cost of waste glass mixtures. The Pareto fronts for mortars containing different sizes of waste glass powder were successfully obtained, contributing to the practical application of waste glass in mortar production.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Genbao Zhang et al.
Summary: This investigation focuses on improving the workability and mechanical properties of self-compacting concrete (SCC) by using treated jute fibers and mineral powders as substitutes for Portland cement. The study concludes that mineral powders and jute fibers can significantly enhance the workability and mechanical properties of SCC, with the combination of 0.1% jute fibers and 75μm zeolite powders achieving the best results.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Genbao Zhang et al.
Summary: This study investigated the influence factors of glass fiber-reinforced polymer (GFRP) rebar reinforced cemented soil, revealing that mechanical properties positively responded to cement proportion and curing period, while negatively correlated to water content. Machine learning models were utilized for prediction and a multi-objective optimization approach was successfully implemented.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Construction & Building Technology
Zhenhua Ren et al.
Summary: This study investigated the effects of different activation methods on the performance of copper slag and nano-graphite wrapped cementitious composites. The results demonstrated that the combined treatment of alkali excitation and ultrasonic vibration significantly improved the mechanical and conductive properties of the samples.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Junbo Sun et al.
Summary: Conductive fillers play an important role in the design of electrically conductive cementitious composites, and the chemical components of the fillers influence the strength and electrical resistance of the materials. This study investigates the interfacial properties of graphite particles, steel slags, and ground granulated blast furnace slag in the composites at the molecular level, and proposes a hybrid mixing design to balance the mechanical and conductive performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Hongsheng Liang et al.
Summary: In this work, the modulation of morphology, composition, interface, defects, and conductivity is achieved by adjusting the ratio of copper salt to reducing agent chitosan. The appearance of twin boundaries accelerates the ability of the homogeneous interfaces to transfer charges, resists the oxidation of metal Cu-0, keeps the high electric conductivity of Cu-0 nanoparticles, and enhances the conduction loss, providing a boost for electromagnetic wave dissipation.
Article
Computer Science, Information Systems
Houhong Lu et al.
Summary: The internal defect detection of magnetic tile before mounting is crucial in the manufacturing industry. However, the current manual operation results in inefficiency and diseconomy. In this work, an intelligent system based on acoustic sound is developed to address these issues. A multimodal fusion convolutional neural network (MMFCNN) is designed for accurate internal defect detection, and a novel attention mechanism is proposed to enhance feature extraction. Extensive experiments demonstrate the effectiveness of the proposed MMFCNN for internal defect detection of magnetic tile.
Article
Construction & Building Technology
Junbo Sun et al.
Summary: By adjusting the hyperparameters of BPNN using the bio-inspired beetle antennae search (BAS) algorithm, the prediction of UCS for HSC can be efficiently carried out with automatic optimization. Through sensitivity analysis, it is found that cement content has the most significant influence on UCS, while superplasticizer content has the least impact. However, due to limitations of the dataset and the performance of ML models, further data collection and model updates are necessary to enhance UCS prediction accuracy.
Article
Green & Sustainable Science & Technology
Yunchao Tang et al.
Summary: The research indicates that the impact of rubber particles on the unstable fracture toughness is greater than that on the initial cracking toughness of RAC after exposure to high temperatures. However, the enhanced effect of rubber on the fracture resistance decreases after subjecting it to high-temperature treatment due to the softening and eventual decomposition of rubber. Therefore, a rubber content of more than 4% is not recommended to avoid drawbacks introduced by rubber, considering the mechanical and fracture performance of RRAC.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Junbo Sun et al.
Summary: Electrically conductive cementitious composites (ECCCs) have become a significant research interest in structural health monitoring. The use of graphite in ECCCs can significantly improve their electrical performance, however, with unsatisfactory friction resistance because of the graphite's smooth microsurfaces. Slag can be incorporated with graphites into ECCCs to achieve good performance in both of mechanical resistance and electrical conductivity.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Junbo Sun et al.
Summary: In this study, the impact of 3D-printed oriented copper fiber on EMW superstructures and microwave reflectivity was investigated. An equivalent waveguide attenuator model was proposed to explain the enhanced dielectric properties, space impedance matching, and multiple scattering. EMW-absorbing elements were manufactured through casting, laminar parallel printing, and cross printing, with the cross superstructure showing excellent low-frequency absorption and the parallel superstructure demonstrating desirable reflectivity at high frequencies.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Junbo Sun et al.
Summary: Land disposal of waste glass leads to environmental contamination, and recycling it as supplementary cementitious material in concrete is a sustainable solution. Different activation approaches were studied to mitigate alkali-silica reaction (ASR) in concrete with waste glass, with combined activation showing optimal improvement in mechanical properties. Hydrothermal activation reduced ASR expansion effectively, while chemical treatment could induce excessive expansion even at low WGP content.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Chemistry, Analytical
Wei Ma et al.
Summary: This study critically reviews the current approaches for developing GD in BIM, proposes new perspectives and reference guides, aiming to guide designers in the building industry to determine the appropriate approaches for developing GD-BIM.
Article
Green & Sustainable Science & Technology
Yuantian Sun et al.
Summary: This study evaluated the quality improvement of coal and grouted coal specimens through a series of direct shear tests, and found that the strength and stiffness of grouted coal were significantly improved with the increase of grout column diameter. Linear regression models were established for predicting mechanical parameters and three failure models associated with coal and grouted coal specimens were revealed. This research can provide a basic evaluation and guideline for the parametric design of cement pre-grouting applications in soft coal mass.
Article
Chemistry, Multidisciplinary
Junbo Sun et al.
Summary: Although waste glass is nonbiodegradable, it can be utilized as a supplementary cementitious material due to its silicon dioxide content. Different activation methods for waste glass powder were studied to improve mortar strength and reduce expansion. A random forest model with hyperparameter tuning by beetle antennae search showed high accuracy in predicting flexural strength and alkali-silica reaction expansion. Particle granularity and waste glass content were found to be the most sensitive variables for mortar performance.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Ceramics
Junbo Sun et al.
Summary: A new fiber-reinforced high-performance lightweight engineered cementitious composite (LWECC) was proposed and thoroughly investigated for its fresh properties, compressive strength, and flexural strength, then calibrated through a printability assessment. The addition of hollow glass microspheres (HGMs) significantly improved the lightweight property of the material but inevitably negated mechanical properties. Superior toughness was observed when the printed filament was perpendicular to the loading direction, resulting in a 63% increase in compressive strength and a 40% increase in flexural strength.
CERAMICS INTERNATIONAL
(2021)
Article
Computer Science, Information Systems
Wang Lei et al.
Summary: Maximizing residual value and reducing resource waste are essential for GGRMS. By using a coupling analysis and an optimization model, the method successfully improved matching efficiency for resource allocation in the generalized growth scheme.
Article
Construction & Building Technology
Guowei Ma et al.
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Construction & Building Technology
Junbo Sun et al.
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Construction & Building Technology
Junbo Sun et al.
CEMENT & CONCRETE COMPOSITES
(2020)
Article
Construction & Building Technology
Farhad Aslani et al.
STRUCTURAL CONCRETE
(2019)
Article
Chemistry, Physical
M. F. Kai et al.
Article
Construction & Building Technology
Junbo Sun et al.
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Construction & Building Technology
Farhad Aslani et al.
STRUCTURAL CONCRETE
(2019)
Article
Construction & Building Technology
Farhad Aslani et al.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2019)
Article
Construction & Building Technology
Guowei Ma et al.
CONSTRUCTION AND BUILDING MATERIALS
(2018)
Article
Chemistry, Physical
Dongshuai Hou et al.
Article
Construction & Building Technology
Shuai Xie et al.
JOURNAL OF BUILDING ENGINEERING
(2016)
Article
Materials Science, Ceramics
E Bonaccorsi et al.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2005)
Article
Chemistry, Physical
ACT van Duin et al.
JOURNAL OF PHYSICAL CHEMISTRY A
(2003)
