A5015084700- Innovative concrete reinforcement materials
- Structural Behavior of Reinforced Concrete
- Concrete and Cement Materials Research
- Concrete Corrosion and Durability
- Advanced Fiber Optic Sensors
- Innovations in Concrete and Construction Materials
- Structural Response to Dynamic Loads
- Mechanical Behavior of Composites
- Concrete Properties and Behavior
- Structural Load-Bearing Analysis
- Structural Health Monitoring Techniques
- Magnesium Oxide Properties and Applications
- Polymer Nanocomposites and Properties
- Fiber-reinforced polymer composites
- Infrastructure Maintenance and Monitoring
- Ultrasonics and Acoustic Wave Propagation
- Smart Materials for Construction
- Analytical Chemistry and Sensors
- Geotechnical Engineering and Underground Structures
- BIM and Construction Integration
- Advanced ceramic materials synthesis
- Rock Mechanics and Modeling
- Fatigue and fracture mechanics
- Fire effects on concrete materials
- Photonic and Optical Devices
University of Hong Kong
2016-2025
The Alfred Hospital
2025
Monash University
2025
Queen Mary Hospital
2025
Hong Kong Eye Hospital
2025
Grantham Hospital
2025
Hong Kong University of Science and Technology
2015-2024
University of Michigan
2016
Hong Kong College of Technology
2015
Hong Kong Chu Hai College
2012
This paper analyzes the pseudostrain‐hardening phenomenon of brittle matrix composites reinforced with discontinuous flexible and randomly distributed fibers, based on a cohesive crack‐mechanics approach. The first crack strength strain are derived in terms fiber, matrix, interface micromechanical properties. Conditions for steady‐state cracking multiple found to depend two nondimensionalized parameters that embody all relevant material parameters. results therefore quite general applicable...
Polyvinyl alcohol (PVA) fiber reinforced engineered cementitious composite (ECC) is a class of high performance composites with pseudo strain-hardening behavior and excellent crack control when subjected to uniaxial tension. However, the compressive ECC has not been well characterized in literature. In this paper, compression tests were carried out on five different mix proportions strength ranging from 35 60 MPa. Complete stress-strain curves obtained. Based test results, parameters, such...
The use of fiber-reinforced polymer (FRP) reinforcement in structural engineering has attracted great attention due to high tensile strength, good fatigue performance, and inherent corrosion resistance. Engineered cementitious composite (ECC) is a class high-performance composites with pseudo-strain-hardening behavior excellent crack control. Substitution concrete ECC can avoid the cracking durability problems associated brittleness concrete. In this paper, six FRP-reinforced ECC, or...
The relation between the component strain and on a surface-attached optical fiber is governed by effectiveness of shear transfer through adhesive polymeric coating(s) fiber. A classical lag model can predict soft layer well. However, experiments showed that results are unsatisfactory for bare with stiff case. 3D-FEM established to surface-mounted sensor it verified experiments. Then, used investigate influence four geometric parameters adhesive: (1) side width, (2) top thickness, (3) bond...
Strain-hardening cementitious composites (SHCCs) exhibiting tensile strain-hardening and multiple cracking are attractive for many structural applications. However, the high cement content makes typical SHCCs less ecofriendly than conventional concrete. One possible approach to improve sustainability is substitute with industrial wastes such as fly ash. This paper presents an attempt develop ultrahigh-volume ash (HVFA, 80% by weight of binder) From literature, polyvinyl alcohol (PVA) fiber...
This paper presents the results of an extensive test program on residual mechanical properties engineered cementitious composites (ECC) exposed to elevated temperatures up 800°C. ECC cube specimens were heated four different target (200, 400, 600, and 800°C) in electric furnace then kept at constant temperature for three time durations (0.5, 1, 2 h). Two cooling schemes, quenching water air, used cool specimens. The evaluated. strength stiffness generally decreased with increasing heating...