The Feasibility of Using High Strength Stainless Steel in Pre-stressing Applications

Author's Department

Construction Engineering Department

Second Author's Department

Construction Engineering Department

Third Author's Department

Construction Engineering Department

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https://doi.org/10.1007/978-3-031-96767-2_10

All Authors

Rana Khaled Morsy Mohamed Naguib Abu Zeidi Ezzeldin Yazeed Sayed Ahmed

Document Type

Research Article

Publication Title

Lecture Notes in Civil Engineering

Publication Date

1-1-2025

doi

10.1007/978-3-031-96767-2_10

Abstract

Climate change poses significant challenges to infrastructure performance. Designing structures without accounting for potential failure mechanisms can lead to high mitigation expenses and increased risks to safety, serviceability, and durability. As a result, it is crucial for engineers to ensure structural reliability under extreme weather conditions and evolving climatic scenarios. The severity of such environments emphasizes the need for more resilient construction materials. This study investigates the potential use of high strength, corrosion-resistant stainless steel strands—specifically HSSS Duplex 2205—for pre-stressing applications. This advanced steel alloy presents a promising alternative to traditional carbon steel strands due to its superior mechanical performance and resistance to corrosion, particularly in marine environments. Although the initial investment may be higher, the material’s longevity contributes to lower life-cycle costs over time. In this research, HSSS Duplex 2205 is assessed by performing experimental testing related to the material’s chemical composition, mechanical properties, and stress corrosion resistance. The results demonstrate the desirable properties of the HSSS strands which are highlighted to showcase the construction industry the urge of using this material in aggressive marine environments. The chemical composition testing reflects the high content elements that provides better corrosion resistance properties. Tensile testing performed showed that the minimum requirements of ASTM were met. The low fracture strain and high modulus of elasticity were examined in depth concluding a dual fracture mode being experienced by the material. Thus, using the experimental work results in this research, a modified Mattock power formula for stress–strain has been proposed for the ACI-PCI-AASHTO codes. The newly proposed modified formula would account for the different properties that the HSSS Duplex 2205 material has than that of the conventional carbon strands. Furtherly, the stress corrosion cracking test showed a 64% decrease in corrosion rate when using a HSSS Duplex 2205 than using carbon steel.

First Page

109

Last Page

126

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