Department of Civil and Structural Engineering
Sir Frederick Mappin Building
I graduated in Civil Engineering from the University of Benghazi in 1998. In 2007, I was awarded an MSc. in Concrete Engineering at the University of Sheffield (UK). In 2011 I was granted a scholarship from Libya government that I used to join the University of Sheffield in April 2012 for my PhD studies.
Recent activities and achievements
Project title: Durability of GFRP bars in concrete structures under sustained stress
Objectives: the primary objective of this research is to provide better understanding of long term performances of GFRP bars in a concrete environment under the combined effects of temperature, moisture conditions and chemical solutions in the presence of sustained stress. This may offer unique information to establish unified standard test method for durability tests. The development of new accurate predictive model for long term performance of FRP for various environmental conditions could be used as a design tool for FRP bars embedded in concrete.
Tasks and methodology: In order to achieve the main aims of my research, the experimental program is involve exposure of GFRP bars in concrete, mortar ,alkaline solution and water at temperatures of 20°C, 40°C, 60°C in the presence of sustained stress. After exposure, the specimens will be tested in direct tension, bonding and flexure to investigate the environmental effects on mechanical properties of the specimens. The change in physical properties and possible degradation of the GFRP reinforcement are examined using a set of complementary techniques including scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and differential scanning calorimetry (DSC).
Expected results: This research may provide unique information which may be useful for development of test methods and fib TG 9.3, 2007 predictive approach for long term applications of FRP bars in concrete environments. Consequently the results from this research may contribute to improve the design code and guideline of practice for using GFRP in the construction industry in order to evolve their future applications.
Supervisor: Dr Maurizio Guadagnini