A5009517678- Concrete and Cement Materials Research
- Concrete Properties and Behavior
- Innovative concrete reinforcement materials
- Structural Behavior of Reinforced Concrete
- Dam Engineering and Safety
- Water Quality Monitoring and Analysis
- Enhanced Oil Recovery Techniques
- Fluid Dynamics Simulations and Interactions
- Innovations in Concrete and Construction Materials
- Structural Response to Dynamic Loads
- Geoscience and Mining Technology
- Structural Engineering and Vibration Analysis
- Spectroscopy Techniques in Biomedical and Chemical Research
- Elasticity and Material Modeling
- Educational Strategies and Epistemologies
- Bee Products Chemical Analysis
- Science Education and Pedagogy
- Advanced Measurement and Detection Methods
- Education and Critical Thinking Development
- Lattice Boltzmann Simulation Studies
- Geotechnical Engineering and Underground Structures
- Fire effects on concrete materials
- Soil, Finite Element Methods
- Spectroscopy and Chemometric Analyses
- Rock Mechanics and Modeling
Yunnan Normal University
2023-2024
University of Padua
2022-2024
Beijing Normal University
2020
Hubei University of Technology
2018
Abstract This study combined polypropylene (PP) (rupture strain >20%) and glass fiber <3%) in an epoxy matrix to develop interlayer hybrid reinforced polymer (FRP) element. Cyclic tensile tests were conducted on this FRP composite system investigate the hysteretic behavior, a restoring force model describing cyclic stress–strain relationship was proposed. The experimental findings indicate that response of follows approximately linear envelope curve prior rupture layer with minimal...
Basalt fiber (BF) has received much attention in recent years for engineering practice and scientific research related to basalt reinforced concrete (BFRC) due its advantageous mechanical properties cost-effectiveness. By researching performance characteristics after cryogenic freeze-thaw cycles, the advantages of BFRC's can be further exploited order expand application scope. The effects volume fraction, temperature gradient, number cycles on compressive strength, toughness index, splitting...
A random aggregate (RA) model consisting of mortar, aggregate, and the interfacial transition zone (ITZ) was established to investigate effect existing cracks on tensile properties concrete. Based this, a method for establishing geometric cracked concrete proposed by inserting 0-depth cohesive elements into RA model. The influence crack length, width, area were studied using In addition, key parameters bond strength fracture energy mortar ITZ regions tested. cement is ordinary Portland with...
The present study aimed to investigate factors predicting inquiry-based teaching in science across One Belt Road countries and regions (OBOR economies). Teacher-level ( N = 8,603) school-level 1,385) data were drawn from the Program for International Student Assessment (PISA) 2015. Hierarchical linear modeling was adopted analysis. results showed at teacher level that collaboration positively correlated with OBOR economies, beliefs associated each sample. At school level, no consistent...
In order to study the influence of existing cracks on tensile properties concrete, random aggregate (RA) model was established, which composed mortar, and interface transition zone (ITZ). Subsequently, 0-depth cohesive element inserted into RA model, a method for establishing geometric cracked concrete proposed. Based established crack length, width, affected area were studied. Besides, experiment carried out measure key parameters (tensile strength fracture energy) in mortar regions ITZ...
Abstract Honey is an important agricultural and sideline product in China, which contains the high nutritional value commercial value. An advanced honey adulteration identification model can help beekeepers consumers better identify avoid losses. Given complex operation technical requirements of traditional experimental instruments, a new for quickly efficiently identifying with different kinds concentrations was developed this study. Based on data adulterated varieties obtained by...
Infrared hyperspectral imaging passive telemetry system is applied to chemical gas monitoring. Noise equivalent radiation brightness (NESR) an important index characterize the sensitivity of system. Firstly, theory Equivalent Spectral Radiance infrared introduced. Based on transmission and simple three-layer model, noise under area array detector deduced. Three calculation methods NESR are The principle experimental device long-wave spectrometer (CHIPED-1) developed by ourselves used...
To investigate the effects of cryogenic freeze-thaw cycles and repeated loading on bearing capacity deformation properties reinforced concrete (RC) short beams, RC beams with different reinforcement ratios were subjected to Minus 160°C cycles. Subsequently, a four-point bending tests carried out under monotonic aim exploring performance characteristics test such as failure mode, load‐deflection response, ductility. Experimental results showed that mode changed from ductile brittle shear...
In view of the insufficiency research about steel lined reinforced concrete penstocks in hydropower station crack control standard, Monte Carlo method was combined with width calculation formula Dong Zhe-ren to establish a reliability method. According engineering example and model test parameters, index standard for China were calculated, main influence factors concluded. Studies indicates that level is medium or slightly lower. The limit, cover thickness effective reinforcement ratio on...