AS 1012.21:1999 (R2014) PDF Download

AS 1012.21:1999 (R2014) is a standard that outlines the procedure for determining the water absorption and apparent volume of permeable voids in hardened concrete. The test involves immersing the concrete specimen in water and measuring the amount of water absorbed by the concrete. Additionally, if required, the test can also determine the boiled absorption.

It is important to note that the absorptions indicated by this test are higher than those typically experienced by concrete in normal service conditions. This test is not intended to provide an absolute measure of durability. The accuracy of the test results can be influenced by various factors, including compaction, curing, age, air entrainment, and the nature of the aggregate. Additionally, the shape and condition of the concrete specimen can also affect the test results.

Furthermore, the Standard includes a note indicating that the test may involve the use of hazardous materials and equipment, as well as engagement in hazardous operations. This highlights the importance of following proper safety protocols while conducting the test.