While this article provides a deep dive into the contents of ACI 213R-14, we do not host pirated PDFs. To ensure you are working with the correct, enforceable code, you must purchase the document from the American Concrete Institute (ACI). What is ACI 213R-14? The ACI 213R-14 is a 48-page guide published by the American Concrete Institute. The "R" stands for "Report" or "Guide," distinguishing it from a mandatory code (like ACI 318). However, in practice, 213R-14 is the definitive reference for specifying, mixing, placing, and curing structural lightweight concrete.
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If you have searched for the term , you are likely a civil engineer, a contractor reviewing a spec, or a student trying to understand how to reduce structural mass without sacrificing integrity. This article serves as a comprehensive overview of the standard, what it contains, why it is the gold standard for lightweight concrete (LWC), and how to legally obtain the document. While this article provides a deep dive into