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ACI 222.2-14

Current Revision

Report on Corrosion of Prestressing Steels (Reapproved 2024)

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This report covers various types of prestressing steel, including some discussion on metallurgical differences, and supplements information presented in ACI 222R to include topics specifically related to prestressing steels. Deterioration mechanisms are discussed, including hydrogen embrittlement and stress-corrosion cracking. Methods to protect prestressing steel against corrosion in new construction are presented, along with a discussion of field performance of prestressed concrete structures. Finally, field evaluation and remediation techniques are presented. Appendixes present detailed information on stress corrosion cracking and hydrogen embrittlement issues in prestressed concrete and mitigation techniques. Keywords: anchorage; bonded; corrosion; duct; durability; grout; hydrogen embrittlement; post-tensioned; prestressed; tendon; strand; stress-corrosion cracking; unbonded.

SDO ACI: American Concrete Institute
Document Number 222.2
Publication Date Jan. 1, 2014
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2014 ACI 222.2-14 Revision