Revised ACI benchmark factors internal curing, recycled aggregates, SCC, MOE

Sources: American Concrete Institute, Farmington Hills, Mich.; CP staff The American Concrete Institute has expanded the scope of ACI 301-20, Specifications for Concrete Construction, to include internal curing, mineral fillers and recycled aggregates, along with evaluation requirements for elements cast with self-consolidating mixes and structures with defined modulus of elasticity requirements. Compliance details throughout the document have been updated to…

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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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