In the present study, a new method for retrofitting reinforced concrete beam is introduced in which steel-concrete composite jackets containing steel fiber is used. For this purpose, 75% of the peripheral surface of reinforced concrete beams was initially reinforced using steel plates and bolts, and steel fiber reinforced concrete was used between the steel plates and the peripheral surfaces of...

High-strength concrete is a material often used in the construction of high rise buildings. In the case of unexpected fire, the building concrete elements such as columns, slab and walls will be subjected to extreme temperatures. In order to assess the performance of high-rise reinforced concrete members it is important to understand the changes in the concrete properties due to extreme tempera...

Ultra-high-performance concrete (UHPC) is a kind of high-tech cementitious material with superb mechanical and durability properties compared to other types concrete. However, due the high content cement silica fume used, cost environmental impact UHPC considerably higher than conventional For this reason, several efforts around world have been made develop greener less expensive local pozzolan...

Nowadays, concrete with strength higher than 50 MPa is utilized due to the ever increasing need for higher strength and prolonged healing properties. Despite the widespread use of high-strength concrete, only a few research projects have been conducted on the punching shear strength of high-strength concrete slabs. Reinforced concrete flat slabs are widely employed in structural systems. The lo...

Abstract The application of Ultra High‐Performance Fiber Reinforced Concrete (UHPFRC) is increasing worldwide to repair and strengthen existing structures. One the main applications in bridge components, e.g., decks piers, but also floors residential or industrial buildings realize construction joints prefabricated members. To properly design a strengthening intervention with UHPFRC, bond betwe...