A5051565137- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Electromagnetic wave absorption materials
- Smart Materials for Construction
- Concrete Properties and Behavior
- Structural Behavior of Reinforced Concrete
- Optimization and Variational Analysis
- Magnesium Oxide Properties and Applications
- Innovations in Concrete and Construction Materials
- Grouting, Rheology, and Soil Mechanics
- Advanced Antenna and Metasurface Technologies
- Lattice Boltzmann Simulation Studies
- Systemic Lupus Erythematosus Research
- Granular flow and fluidized beds
- Advanced ceramic materials synthesis
- Advanced Optimization Algorithms Research
- Urticaria and Related Conditions
- Optimization and Mathematical Programming
- Hydrogen Storage and Materials
- Fixed Point Theorems Analysis
- High-Voltage Power Transmission Systems
- Mathematical Inequalities and Applications
- Geotechnical Engineering and Underground Structures
- Contact Mechanics and Variational Inequalities
- Monoclonal and Polyclonal Antibodies Research
Beijing University of Technology
2005-2024
Gansu University of Traditional Chinese Medicine
2023
Taizhou University
2007-2009
The discrete element method (DEM) was used to establish the slump model and J-Ring of concrete describe flow behavior in test test. Then, contact parameters particle-particle particle-geometry for DEM model, including restitution coefficient, rolling friction static surface energy, were measured. In order avoid influence shape size aggregate, this paper high-precision glass spheres as aggregate meso-calibration test, Comparing simulation results with result, a very high agreement between...
This study investigates the influence of rheological parameters on unyielded zone, pressure drop, and secondary flow pattern non-Newtonian fluid like fresh cement mortar through a pipe bend with different curvatures. The regularized Herschel–Bulkley model is employed in framework lattice Boltzmann method to effects visco-plastic shear-thickening/thinning characteristics variations yielding stress σ0 power-law index n. sharper curvature, higher contributes smaller more asymmetric zone even...
The fact that high-strength concrete is easily to crack has a significant negative impact on its durability and strength. This paper gives an optimum design method of for improving resistance based orthogonal test artificial neural networks (ANN) genetic algorithm (GA). First, operated determine the influence mix proportion slump, compressive strength, tensile strength elastic modulus, followed by calculating predicting performance using ANN. Based results from ANN, functional relationship...
In this paper, the mesocalibration test was used to measure contact parameters (restitution coefficient, rolling friction static and surface energy) between coarse aggregate particles mortar in Discrete Element Method (DEM) model of concrete. Then, DEM concrete slump established according gradation study flow behavior fresh The result compared with output high consistent, indicating promising reliability test. Finally, based on results, pumping established. It obtained that pressure...
In this paper, the effects of quartz fibers on resistivity, complex permittivity, permeability, and S-parameters high-alumina cement pastes are investigated. Meanwhile, change microstructure after adding were analyzed by mercury intrusion porosimetry (MIP) scanning electron microscope (SEM). The results show that with increase content fiber, real part permittivity decreases, while imaginary dielectric loss tangent, resistivity increased. At same time, there more small pores, interface...