One persistent myth is that lightweight concrete is less durable. ACI 213R-14 disproves this with data. It shows that properly air-entrained LWC has exceptional freeze-thaw resistance. Furthermore, due to its lower conductivity, LWC provides significantly better fire resistance than normal weight concrete of the same thickness.
However, owning the PDF is only half the battle. You must own the correct PDF. Using a bootleg scan from 2010 might contain errors, missing appendices, or outdated equations that could fail a plan check. aci 213r-14 pdf