Ahmed Aziz Khalifa

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  • A Khalifa, W J Gold, A Nanni, M I Abdel Aziz, Ahmed Khalifa, William J Gold +2 others
  • 2000
Fiber reinforced polymer (FRP) materials are continuing to show great promise for use in strengthening reinforced concrete (RC) structures. These materials are an excellent option for use as external reinforcing because of their light weight, resistance to corrosion, and high strength. Externally bonded FRP sheets have been used to increase moment capacity(More)
This paper presents a novel anchor system called U-anchor that can be used to significantly improve the performance of surface mounted reinforcement for concrete/masonry made of fiber reinforced polymer (FRP) composites. In applications where bond and/or development length of FRP are critical, the U-anchor prevents debonding of the reinforcement. The anchor(More)
BACKGROUND AND PURPOSE Multiple sclerosis (MS) is a debilitating neurological disease of young people with substantial consequences on patients' quality of life (QOL). A variety of QOL instruments have been used to evaluate the efficacy of treatments. However, no study assessed the role of the different demographic, clinical, physical, social, economic and(More)
Enhancing the self-purification of streams has become an important task of wastewater management. Gabal EL Asfar drain, located in Cairo, Egypt, transfers the excess raw wastewater from Berka WWTP at an approximate flow rate of 250,000 m 3 /d to be discharged into Belbies drain without any treatment, thus affecting the surrounding environment, human health,(More)
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