Publication

Rehabilitation of concrete bridges using Ultra-High Performance Fibre Reinforced Concrete (UHPFRC)

2012
Conference Papers

Abstract

Rehabilitation of deteriorated concrete bridges is a heavy burden from the socio-economic viewpoint. Novel concepts for the rehabilitation of concrete structures must be developed. Ultra-High Performance Fibre Reinforced Concretes (UHPFRC) provide the structural engineer with a unique combination of extremely low permeability and very high mechanical strength. An original lifetime oriented concept is presented for the rehabilitation of concrete bridges which consists in using UHPFRC to “harden” the zones exposed to severe environmental and high mechanical loading. This concept combines efficiently protection and resistance properties of UHPFRC and significantly improves the structural performance and life-cycle costs.

Official source

https://infoscience.epfl.ch/entities/publication/e7472527-428d-497b-a43f-c5dcd7bb80cf

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2012
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e7472527-428d-497b-a43f-c5dcd7bb80cf

About this result

Related concepts (32)

Concrete

Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. When aggregate is mixed with dry Portland cement and water, the mixture forms a fluid slurry that is easily poured and molded into shape.

Prestressed concrete

Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete and is done to improve the performance of the concrete in service. Tendons may consist of single wires, multi-wire strands or threaded bars that are most commonly made from high-tensile steels, carbon fiber or aramid fiber.

Structural engineer

Structural engineers analyze, design, plan, and research structural components and structural systems to achieve design goals and ensure the safety and comfort of users or occupants. Their work takes account mainly of safety, technical, economic, and environmental concerns, but they may also consider aesthetic and social factors. Structural engineering is usually considered a specialty discipline within civil engineering, but it can also be studied in its own right.

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Rehabilitation of concrete bridges using Ultra-High Performance Fibre Reinforced Concrete (UHPFRC)

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