ACI PRC-237.2-21 (IN-LB, SI) PDF Download

ACI PRC-237.2-21 (IN-LB, SI) is a standard that focuses on the form pressure exerted by self-consolidating concrete (SCC) and factors affecting it. SCC has high flowability and a fast casting rate which can lead to high form pressure. This standard provides information on key parameters such as constituent materials, mixture proportioning, and casting parameters that influence the thixotropy (structural buildup) of SCC and its form pressure. It also presents prediction models that can be used to estimate the form pressure exerted by SCC.

The report discusses how factors like casting rate, concrete temperature, and reinforcement percentage can impact the thixotropy and form pressure of SCC. It highlights the importance of accurately assessing form pressure for safety and economic reasons. The standard includes examples and techniques for estimating and measuring form pressure in field applications.

This standard is relevant to professionals in the concrete industry, including concrete suppliers and formwork designers. It provides valuable insights into the primary factors influencing form pressure in SCC and offers tools and models to predict and measure form pressure accurately.