ACI 318-19 brings new provisions for alternative cements and aggregates


There’s a newly released version of the American Concrete Institute’s ACI 318: “Building Code Requirements for Structural Concrete,” the document that governs design and construction of structural concrete. While the document is primarily used by engineers and building officials, it incorporates provisions that address materials advancements and applications that have been making inroads in the marketplace. Therefore, it will have an impact on concrete producers.

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ACI 318-19 Building Code debuts with new aggregate, SCM provisions

Sources: American Concrete Institute, Farmington Hills, Mich.; CP staff

ACI 318-19 Building Code Requirements for Structural Concrete has been released in print and digital formats. The new edition has full-color illustrations to improve clarity, and includes major technical changes in higher reinforcing steel yield strengths; added shotcrete and deep foundation provisions; seismic requirements for deep foundations and other applications; vertical seismic motions; nonlinear analysis for seismic design; modification to development length equations; and, updated shear design provisions and equations. 

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Public comment period for ACI 318-19 draft continues

Source: American Concrete Institute, Farmington Hills, Mich.

ACI is accepting feedback through February 6 on the proposed ACI 318-19: Building Code Requirements for Structural Concrete, the draft posted here. The new edition will be the first since a reorganized format was published in 2014 and include new or updated provisions on transverse reinforcement and shear in wide beams, hanger reinforcement, bi-directional interaction of one-way shear, and reference to ACI certifications. Existing provisions expected to receive significant updates and clarifications include two-way shear strength, ordinary walls, seismic loads, reinforcement detailing, analysis, and numerous materials requirements. Analysis methods for two-way slabs and provisions on shear heads and composite concrete columns are expected to be removed.  

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