- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Concrete Corrosion and Durability
- Concrete Properties and Behavior
- Geophysical Methods and Applications
- Ultrasonics and Acoustic Wave Propagation
- Building materials and conservation
- Innovations in Concrete and Construction Materials
- Structural Behavior of Reinforced Concrete
- Magnesium Oxide Properties and Applications
- Acoustic Wave Resonator Technologies
- Seismic Waves and Analysis
- Microwave and Dielectric Measurement Techniques
- Recycling and utilization of industrial and municipal waste in materials production
- Recycled Aggregate Concrete Performance
- Smart Materials for Construction
- Rock Mechanics and Modeling
- BIM and Construction Integration
- Clay minerals and soil interactions
- Infrastructure Maintenance and Monitoring
- Corrosion Behavior and Inhibition
- Drilling and Well Engineering
- TiO2 Photocatalysis and Solar Cells
- Natural Fiber Reinforced Composites
- Structural Engineering and Vibration Analysis
Georgia Institute of Technology
2015-2024
Carnegie Mellon University
2023
Stevens Institute of Technology
2022
Missouri University of Science and Technology
2017
University of Suwon
2014
Georgia Department of Transportation
2011
Arab Academy for Science, Technology, and Maritime Transport
2007
University of California, Berkeley
1997-2001
University of Illinois Urbana-Champaign
2001
The effect of nanoanatase titanium dioxide (TiO 2 ) powder on early‐age hydration kinetics tricalcium silicate (C 3 S) was investigated. Isothermal calorimetry performed C S pastes with 0%, 5%, 10%, and 15% TiO addition by weight, two mathematical models—the Avrami (or JMAK) model the boundary nucleation (BN model)—were fitted to data. For all mixes, increased peak reaction rate, degree at 12 24 h. rate 10% were accelerated, while 5% paste delayed, lengthening induction period as compared...
Two metakaolins, with similar mineralogical composition but which vary in their surface area (11.1 versus 25.4m2∕g), were evaluated for use as supplementary cementitious materials through measurements of workability, setting time, strength, elastic modulus, heat evolution, calcium hydroxide (CH) content, and area. Compressive flexural strength concrete greater increased at a faster rate when the finer metakaolin was used, expected. The addition early age (i.e., 1–3days) by much 60%. effect...