A5101761309- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Concrete Properties and Behavior
- Magnesium Oxide Properties and Applications
- Concrete Corrosion and Durability
- Welding Techniques and Residual Stresses
- Recycled Aggregate Concrete Performance
- Glass properties and applications
- Risk and Safety Analysis
- Safety and Risk Management
- Building materials and conservation
- Fire effects on concrete materials
- Recycling and utilization of industrial and municipal waste in materials production
- Fire Detection and Safety Systems
- Metal Forming Simulation Techniques
- Structural Response to Dynamic Loads
- Layered Double Hydroxides Synthesis and Applications
- Material Properties and Applications
- Crystallization and Solubility Studies
- Aluminum Alloys Composites Properties
- Thermal and Kinetic Analysis
- Advanced machining processes and optimization
- CO2 Sequestration and Geologic Interactions
- Innovations in Concrete and Construction Materials
- Nuclear materials and radiation effects
Hong Kong Polytechnic University
2020-2024
Central South University
2018-2022
Jiangsu University of Science and Technology
2007
Interest in exploring the use of seawater as mixing water for preparing concrete is increasing due to lack freshwater some coastal regions and remote islands, where more accessible. However, up now, mechanism accelerating effect on hydration portland cement (PC) remains unclear. In this study, alite, a major clinker phase PC, was hydrated with common salt solutions (NaCl, Na2SO4, MgCl2) explore acceleration. The heat release peaks salt-added systems shifted an earlier time higher peak value,...
Aluminum alloy 7075 is one of the materials widely used in manufacture structural components by aviation industries. High precision required producing shapes such due to shape stability and dimensional accuracy being difficult maintain throughout different stages manufacturing. In this work, an experimental study effect VSR (Vibratory Stress Relief) on deformation residual stresses aluminum thin-walled presented. It was concluded that improved size material a significant level relieving...
This work investigated the strength degradation mechanisms of seawater ordinary Portland cement (OPC) pastes. Two types specimens were prepared ((i) OSD sample (i.e. OPC was mixed with seawater, and then cured in deionized (DI) water) (ii) ODD DI water, as reference system)). The use preparing pastes effectively increased hydration rate early-age mechanical strength, but lowered at later age. higher degree larger amounts carbonates a smaller crystal size enabled to exhibit increasing by...
Relieving the residual stress in components is essential to improve their service performance. In this study, a roll-bending process was proposed reduce quenching large-size 2219 Al alloy ring. The effect on evaluated via finite element method (FEM) combined with experiment. of radial feed quantity, friction coefficient, and roller rotational speed during analyzed. A set optimized parameters obtained. results reveal that best reduction rates circumferential axial reached 61.72% 86.24%,...
Abstract While the MgCl 2 mixing alite paste causes degradation of modulus and hardness C–S–H formed, underlying mechanism needs to be better understood. This study comprehensively analyzed mechanical properties pastes mixed with solutions, examining effects at both mesoscale nanoscale. The in situ X‐ray diffraction analysis revealed that formation brucite occurred a very early age together portlandite, which may induce loosened packing density C−S−H served as primary cause degradation. We...
The hydration kinetics of tricalcium silicate (C3S) pastes mixed with different concentrations NaCl solutions were investigated by performing isothermal calorimetry tests. At the same time, Boundary Nucleation and Growth (BNG) model was used to analyze data. fitted well calorimetric results. C3S followed a similar reaction path those prepared DI water, an accelerated rate as concentration increased. BNG indicated that increasing significantly increased nucleation products while decreasing...