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Mr Ali A. Mohammed

TOPIC: Composite repair systems for damaged concrete columns

Authors: Ali A. Mohammed, Allan C. Manalo, Ginghis B. Maranan and Yan Zhuge  from the Centre for Future Materials, Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, Queensland, Australia

Presented by:  Mr Ali A. Mohammed, PhD candidate at the Centre for Future Materials at the University of Southern Queensland, Toowoomba, Queensland, Australia


A new type of a pile repair system and concrete formwork jacket with an innovative mechanical joining system has been developed recently. This novel repair system is quick and safe to install due to the easy-fit and self-locking mechanical jointing system. This repair system works by wrapping the prefabricated and flexible FRP jacket around the damaged structure and placing an infill between the jacket and the repaired structure producing a cylindrical confinement. A recent study indicated that this new rehabilitation technique can be an effective repair and strengthening system for columns, and also it can be used as a permanent concrete formwork as it can provide structural continuity and confinement to the repaired structure. This paper reviews the existing FRP composites techniques in terms of concrete, wood, steel structures’ rehabilitation, and their categories based on their manufacturing process. Also it shows the advantages and the drawbacks of each method based on the previous applications and studies. Finally, it presents a detailed explanation and description about the proposed and the novel FRP composite jacket with showing its privilege aspects that distinguish it over the traditional rehabilitation and strengthening techniques.

Presenter’s resume

Ali A. Mohammed is undertaking his PhD at the Centre for Future Materials at the University of Southern Queensland. He completed his Bachelor of Science degree in structural engineering at the University of Technology, Baghdad, Iraq in 2010 and went on to successfully complete a Master of Technology in infrastructure engineering at JNTUH University in Hyderabad, India in 2013.