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Home > News and Events > News > News Detail
4/22/2025
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The American Concrete Institute (ACI), in collaboration with the Post-Tensioning Institute (PTI), proudly announces the joint release of ACI/PTI CODE-320-25: Post-Tensioned Structural Concrete—Code Requirements and Commentary in PDF format. This new code provides minimum requirements and guidance for the materials, design, and detailing of post-tensioned concrete buildings and, when applicable, nonbuilding structures. ACI/PTI CODE-320-25 was developed through a consensus process and outlines minimum requirements for post-tensioned structural concrete systems, including members with bonded and unbonded tendons. The PTI Technical Advisory Board Code Task Group played a key role in developing the provisions and commentary, and ACI is pleased to acknowledge their expertise and dedication. While the code was initially made available to ACI 320 PLUS subscribers, the release of the PDF edition now makes the document more widely accessible before the upcoming printed version. The ACI PLUS Platform continues to evolve, giving industry professionals digital access to several essential codes. In addition to ACI 320 PLUS, available subscriptions include ACI 318 PLUS, ACI 319 PLUS, ACI 323 PLUS, and the ACI 562 PLUS Repair Subscription—all offering interactive features such as 3D graphics, advanced search tools, in-document cross-referencing, and multi-set digital notetaking. ACI/PTI CODE-320-25 is now available in PDF format through the ACI Store. Explore the ACI 320 PLUS subscription and discover more valuable concrete resources at www.concrete.org. To explore PTI’s ongoing work in the post-tensioning industry, visit www.post-tensioning.org. About the Post-Tensioning Institute: Strength in Concrete - The Post-Tensioning Institute is the leading informational site on the post-tensioning construction method, sponsored by the Post-Tensioning Institute (PTI) - a nonprofit organization for the advancement of post-tensioned, prestressed concrete design and construction. PTI is recognized as the world-wide authority on post-tensioning and is dedicated to expanding post-tensioning applications through marketing, education, research, teamwork, and code development. PTI represents a community of businesses and professionals dedicated to expanding quality post-tensioning applications. ### For more information, contact: aubree.stamper@concrete.org Marketing Coordinator American Concrete Institute | Always advancing concrete.org Always advancing – The American Concrete Institute is a leading global authority for the development, dissemination, and adoption of its consensus-based standards, technical resources, and educational, training, & certification programs. Founded in 1904, ACI is headquartered in Farmington Hills, Michigan, USA, with a regional office in Dubai, UAE, and resource centers in Southern California, Chicago/Midwest, and the Mid-Atlantic. Visit concrete.org for additional information. ###
The American Concrete Institute (ACI), in collaboration with the Post-Tensioning Institute (PTI), proudly announces the joint release of ACI/PTI CODE-320-25: Post-Tensioned Structural Concrete—Code Requirements and Commentary in PDF format. This new code provides minimum requirements and guidance for the materials, design, and detailing of post-tensioned concrete buildings and, when applicable, nonbuilding structures.
ACI/PTI CODE-320-25 was developed through a consensus process and outlines minimum requirements for post-tensioned structural concrete systems, including members with bonded and unbonded tendons. The PTI Technical Advisory Board Code Task Group played a key role in developing the provisions and commentary, and ACI is pleased to acknowledge their expertise and dedication.
While the code was initially made available to ACI 320 PLUS subscribers, the release of the PDF edition now makes the document more widely accessible before the upcoming printed version.
The ACI PLUS Platform continues to evolve, giving industry professionals digital access to several essential codes. In addition to ACI 320 PLUS, available subscriptions include ACI 318 PLUS, ACI 319 PLUS, ACI 323 PLUS, and the ACI 562 PLUS Repair Subscription—all offering interactive features such as 3D graphics, advanced search tools, in-document cross-referencing, and multi-set digital notetaking.
ACI/PTI CODE-320-25 is now available in PDF format through the ACI Store. Explore the ACI 320 PLUS subscription and discover more valuable concrete resources at www.concrete.org.
To explore PTI’s ongoing work in the post-tensioning industry, visit www.post-tensioning.org.
About the Post-Tensioning Institute: Strength in Concrete - The Post-Tensioning Institute is the leading informational site on the post-tensioning construction method, sponsored by the Post-Tensioning Institute (PTI) - a nonprofit organization for the advancement of post-tensioned, prestressed concrete design and construction. PTI is recognized as the world-wide authority on post-tensioning and is dedicated to expanding post-tensioning applications through marketing, education, research, teamwork, and code development. PTI represents a community of businesses and professionals dedicated to expanding quality post-tensioning applications.
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For more information, contact:
aubree.stamper@concrete.org Marketing Coordinator American Concrete Institute | Always advancing concrete.org
Always advancing – The American Concrete Institute is a leading global authority for the development, dissemination, and adoption of its consensus-based standards, technical resources, and educational, training, & certification programs. Founded in 1904, ACI is headquartered in Farmington Hills, Michigan, USA, with a regional office in Dubai, UAE, and resource centers in Southern California, Chicago/Midwest, and the Mid-Atlantic. Visit concrete.org for additional information.
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