AS 1012.4.1:2014 PDF Download

AS 1012.4.1:2014 is a standard that outlines the procedure for determining the air content of freshly mixed concrete by measuring the reduction in concrete volume with increased air pressure. This method is primarily used for quality control purposes, such as plant production testing or mixer uniformity tests. The standard provides guidelines for compaction methods, including rodding, vibration, or the use of self compacting concrete (SCC) placed in a bowl.

It is important to note that the results obtained using this method are influenced by the type of compaction method used. The standard also specifies that this method is suitable for concretes made with dense natural aggregates and may not be recommended for use with lightweight aggregates or aggregates with high porosity.

Additionally, the standard includes two important notes. The first note emphasizes that the method is intended for use with concretes made with relatively dense natural aggregates and provides guidance on determining the aggregate correction factor. The second note highlights the potential hazards associated with using this standard, including hazardous materials, operations, and equipment. It emphasizes the user's responsibility to establish appropriate safety practices and consider regulatory limitations before applying the standard.