ACI 232.4T-20 PDF Download

ACI 232.4T-20 is a standard that focuses on the limits on the proportions of fly ash in concrete. This standard is aimed at addressing the implications of these limits in project specifications. It specifically discusses the use of fly ash that meets current and applicable specifications, such as ASTM C618.

The standard highlights that prescriptive specifications for concrete construction projects often include a clause that restricts the proportion of supplementary cementitious materials (SCMs), including fly ash. This implies that there are specific limitations on the amount of fly ash that can be used as a partial replacement for cement in concrete mixes.

By setting limits on the proportions of fly ash, this standard ensures that the concrete mix remains within acceptable parameters for strength and performance. It also helps to maintain consistency and quality in concrete construction projects.