Evolution of Durability Provisions in ACI Building Codes from the Early 20th Century to Today

May 6, 2025 to May 6, 2025

Starting Time:   1:00PM EST

End Time:   2:00PM EST

Sponsor(s): ACI

Description:
This presentation discusses the evolution of durability provisions in ACI 318 Building Codes and predecessors from the early 1900’s to today and how that evolution will likely continue. Historic aspects of scientific discovery, incorporation of provisions in codes, and introduction of materials and systems to address freezing and thawing deterioration, corrosion of embedded metals, alkali-aggregate reaction, and sulfate attack are described. The lineage of ACI building codes and supporting guide documents, as well as an introduction on the progression of ideas through industry standards to jurisdictional requirements are presented. By attending, those with general technical interests in concrete history, durability, and code progress will gain perspective, and practitioners that evaluate and repair existing buildings will gain an understanding of the types of issues that may be more prevalent in older structures constructed before conditions were known or addressed in codes.

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