Enhance the shear strength of concrete faced rockfill dams

ENHANCE THE SHEAR STRENGTH OF CONCRETE FACED ROCKFILL DAMS Ahmed Sadiq HASSAN Master of Science in Civil Engineering Advisor: Prof. Dr. Ender SARIFAKIOĞLU Co-Advisor: Asst. Prof. Dr. Salih YILMAZ August 2022 Enhancing reinforced concrete dam face is an essential structural task which is used to improve dam's surface form different stresses reflection and deformation. The effect of SFRC and PFRC protects and improves reinforced dam concrete face strength. In this study, the experimental work using a model of SFRC, PFRC panels was carried out to study response and resistance against subjected loads. The experimental program marked as four groups in which each group contains a panel without steel fiber, a panel with SFRC, a panel with PFRC and finally a panel with mix SFRC with PFRC. The specimens of slab concrete with the dimensions of 500 × 500 × 60 mm have been subjected to different testing machines to obtain the shear strength behavior of each specimen type. The recent research results indicate that the steel fiber has a significant improvement on the behavior of concrete in groups under the same conditions, also in general the shear strength improved with respect to PFRC and the results observed more concrete ability with it. Finally, mixing SFRC with PFRC presents a superior results of concrete mechanical characteristic which can be used as an enhanced alternative of dam concrete surface. 2022, 66 pages Keywords: SFRC, PFRC, Shear strength, Conventional steel reinforcement