A5077136095- Innovative concrete reinforcement materials
- Structural Behavior of Reinforced Concrete
- Concrete Corrosion and Durability
- Structural Load-Bearing Analysis
- Seismic Performance and Analysis
- Concrete and Cement Materials Research
- Fire effects on concrete materials
- Smart Materials for Construction
- Structural Response to Dynamic Loads
- Innovations in Concrete and Construction Materials
- Infrastructure Maintenance and Monitoring
- Concrete Properties and Behavior
- Recycled Aggregate Concrete Performance
- Coal Combustion and Slurry Processing
- Geotechnical Engineering and Underground Structures
- Thermochemical Biomass Conversion Processes
- Advanced Energy Technologies and Civil Engineering Innovations
- Asphalt Pavement Performance Evaluation
- Structural Engineering and Vibration Analysis
- Coal and Its By-products
- Magnesium Oxide Properties and Applications
- Structural Health Monitoring Techniques
- Masonry and Concrete Structural Analysis
Henan University of Urban Construction
2020-2024
Zhengzhou University
2019-2020
A comprehensive study was conducted to assess the co-gasification characteristics of sewage sludge and high-sodium coal. As gasification temperature increased, CO2 concentration decreased, concentrations CO H2 were while change CH4 not obvious. coal blending ratio initially increased then decreased increased. The mixture shows synergistic effect co-gasification, promote reaction positively. average activation energies reactions calculated by OFW method, energy decreases increases as...
The corrosion of steel fibers is a direct cause the deterioration fiber-reinforced concrete in chloride environments. This study mainly investigated behavior exposed to NaCl solutions with pH=7, 10, 11, 12, and 13. rate was calculated according change diameter ultimate tensile load. electrochemical parameters were continuously monitored. morphology affected by attack observed scanning electron microscope (SEM). results reveal that decreased as pH solution increased from 7 13, it very small...
Abstract Ultra-high-performance concrete (UHPC) is widely recognized for its high toughness, which directly affected by the dispersion of steel fiber and loading mode. To investigate reinforcement effect fiber, this paper summarizes influencing factors, evaluation methods, theoretical models in UHPC. First, results reveal that a scientifically designed mixture can reduce cost dosage UHPC improve adjusting matrix rheological properties. The optimum plastic viscosity slurry should range from...
The application of composite materials in bridge engineering is increasingly widespread, thanks to their excellent properties such as high strength, low density, and good corrosion resistance.However, practical applications, material bridges often face complex thermal environments, especially cycling, which imposes higher demands on the thermodynamic materials.Thermal cycling can cause not only heat transfer expansion but may also lead fatigue damage, thereby affecting stability safety...
The use of reinforced concrete (RC) shear wall with filled steel tube (CFST) columns and fiber (SFRC) has aroused widespread attention in recent years. A new wall, named SFRC CFST columns, is proposed this paper, which makes column wall. Six specimens were tested under cyclic loading. effects test parameters including volume fraction strength on the failure mode, strength, ductility, rigidity dissipated energy investigated. results showed that all exhibited a distinct mode. Steel fibers...
To improve the seismic behavior of shear walls, a new composite wall composed steel-fiber-reinforced high-strength concrete (SFRHC) web and two square concrete-filled steel tube (CFST) columns, namely with CFST is proposed in this paper. Therefore, main purpose paper to present an experimental investigation SFRHC columns. Pseudo-static tests were carried out on seven performance walls was studied quantified terms aspects energy consumption, ductility stiffness degradation. Furthermore,...
The steel fiber reinforced concrete (SFRC) shear wall with filled tube (CFST) columns is an innovative composite structure. In order to calculate the strength of SFRC CFST columns, softened strut and tie model (SSTM) was proposed based on analysis mechanism columns. SSTM composed diagonal, horizontal, vertical mechanisms, in which contributions concrete, reinforcement, web were identified. capacities 24 walls calculated compared available test results, reasonable agreement obtained. results...
In the paper, an innovative shear wall, which is referred to as steel fiber reinforced concrete (SFRC) wall with filled tube (CFST) columns, introduced, based on high bearing capacity and large stiffness of column (CFSTC) good cracking resistance strong toughness concrete. The loading mechanism (SFRCSW) columns analyzed, calculation method. A simplified model web softening tension bar proposed, distributed reinforcement identified. Furthermore, a new algorithm obtain established, then it...
External prestressing is widely employed in structural strengthening engineering due to its numerous advantages. However, external prestressed steel bars are prone corrosion when exposed the service environment. This paper dedicated examining use of fiber-reinforced polymer (FRP) as materials strengthen one-way concrete slabs. Five slabs were strengthened with externally FRP different prestress levels and amounts bars, while one non-strengthened slab was used for comparison. The effects on...
Chinese construction industry is gradually transforming to industrialization, which promotes the development of prefabricated buildings. As an efficient lateral force resisting system, steel-plate concrete composite shear wall structure has become a research hotspot in field architecture at home and abroad. Based on mechanical characteristics wall, this paper proposes end steel plate connection structure. Through numerical simulation analysis with different areas cast-in-place verified...
Concrete with good mechanical properties and durability has always been a necessity in engineering. The addition of fibers supplementary cementitious materials to concrete can enhance its performance through series chemical physical interactions. This study aims investigate the effects key parameters on compressive strength, splitting tensile chloride penetration resistance combined ground granulate blast furnace slag (GGBS) macro polypropylene synthetic fiber (MSF). Based Taguchi method,...
Steel-fiber-reinforced recycled coarse aggregate concrete (SFRCAC) has great potential for use in structural members due to environmental and economic reasons. A comparison of SF’s reinforcing effect on the strength RCAC with natural (NCAC) was conducted through experiments analysis. Three types steel fiber—milling (MF), shear-wave (SWF), both-end hooked (BF)—were used. The SF volume fraction (Vf) taken as 0, 0.5%, 1.0%, 1.5%, 2%. results show that a similar NCAC RCAC. is relevant matrix....
In this paper, the loading mechanism of steel-fiber-reinforced concrete (SFRC) shear wall (SW) under low-cycle repeated is analyzed, and softened strut-and-tie model (SSTM) SFRC SW composed horizontal vertical resistant members diagonal strut proposed, in which contributions distributed web reinforcement, concrete, steel fiber (SF) to bearing capacity (SBC) identified. Furthermore, a new algorithm obtain SBC established, then it validated by using test results high-strength (SFHSC) loading....