Prestressing Steel Ropes - Corrosion Impact on its Properties

Abstract:

Steel reinforcement made of refined maraging steel in the form of wires and tendons has been for a long time used commonly for reinforcement of prestressed concrete structures. Defects on some of them and unfortunately even accidents of some cases of bridge objects, mainly recently published by media, related to corrosion of prestressed reinforcement awoke interest of both professional and wide non-professional public related to its durability. This issue also opens up a question of durability and liability of prestressed structures. In majority of existing prestressed structures the anticorrosion protection of reinforcement was traditionally secured mainly by alkalinity of the environment, i.e. concreting and/or grouting of prestressed elements in ducts. The abstract presents information related mainly to mechanical characteristics of corrosion-affected prestressed elements.

• Periodical: Solid State Phenomena (Volume 309)
• Pages: 272-280
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.309.272
• Online since: August 2020
• Authors: Jiří Kolisko*, Vítězslav Vacek, Petr Pokorný, Michaela Kostelecká
• Keywords: Bridge, Corrosion, Cross-Section Weakening, Precast, Prestressing Tendons, Suspension Belt

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