A5102875557- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Geotechnical Engineering and Underground Structures
- Concrete Corrosion and Durability
- Recycled Aggregate Concrete Performance
- Dam Engineering and Safety
- Concrete Properties and Behavior
- Advanced Fiber Optic Sensors
- Rock Mechanics and Modeling
- Geotechnical Engineering and Analysis
- Infrastructure Maintenance and Monitoring
- Vibration and Dynamic Analysis
- Microbial Applications in Construction Materials
- Magnesium Oxide Properties and Applications
- Structural Health Monitoring Techniques
- Geomechanics and Mining Engineering
- Simulation and Modeling Applications
- Structural Engineering and Vibration Analysis
- Structural Load-Bearing Analysis
- Structural Behavior of Reinforced Concrete
- Geotechnical Engineering and Soil Stabilization
- Smart Materials for Construction
- Building materials and conservation
- Asphalt Pavement Performance Evaluation
- Bacterial biofilms and quorum sensing
Xi'an University of Technology
2010-2024
Gheorghe Asachi Technical University of Iași
2014
Shaanxi University of Technology
2010
In this study, discrete element PFC3D software was used to simulate the uniaxial compression of C30 concrete specimen models after freezing–thawing damage. Based on thickness damage layer and test, meso-parameters cement mortar in weak interface between coarse aggregate under different cycles were calibrated. The axial deformation produced experiment compared with displacement particles obtained by numerical simulation verify accuracy model selected meso-parameters. model, effects...
The morphology and volume fraction of coarse aggregate particles significantly influence the mechanical characteristics concrete. This paper presents development a numerical model for pebble concrete by combining experiments with discrete element method. mesoscopic parameters between mortars contact surface aggregates in were calibrated comparing simulated stress–strain relationships experimental data from Subsequently, validated them results. obtained then utilized modeling uniaxial...
Designing for flood risk is an important reference hydroelectric project planning and design.In this paper, advanced checking-point method (JC method), which usually used to calculate structure reliability introduced analyze the downstream design risk, considering upper reservoirs' influence; besides, hydrograph deduced from typical hydrograph.So, JC not only can consider influence of reservoirs, but also on that impact.This a new attempt study water design.
Roller-compacted concrete (RCC) structures are often destroyed by coupling damage of freeze–thaw and complex loads in cold conditions, resulting degradation the mechanical properties RCC. In this study, failure process RCC triaxial compression test law crack development were studied through a combination tests discrete-element method (DEM). The results showed that degree presents three different stages: (1) growth, (2) slow (3) rapid growth phases. It was found 125 cycles can be regarded as...
Cracks are ubiquitous in concrete materials and can destabilize a structure, regardless of size or type. This study focuses on the cracking behavior main branching cracks concrete. Compression tests an ultrahigh-speed camera utilized to capture crack formation. Crack length speed under compressive load measured calculated. An accurate method for measuring characteristics is presented. Results show that length–time developing speed–time curves exhibit evident fluctuation compared with crack....
Currently, research on the spore production rate and activation of microorganisms is mostly used in pharmaceutical food industries, with little their application repairing concrete cracks. The ability mineralized environment are key influencing factors ensuring repair effect effects various Bacillus alcalophilus (Bacillus cohnii) were studied using a single factor controlled variable method this paper, optimal culture conditions determined. Furthermore, mineralization reaction after...