Calcium Chloride Testing

Calcium chloride kits have been in use for quite some time but have proven to be unreliable in their results because they are only measuring moisture passage from the concrete at a very shallow depth. Their use is covered under ASTM F1869 but that standard has recently been amended so that calcium chloride is no longer acceptable as a test method for lightweight concrete. Some specs still include calcium chloride kits but this may not meet the ASTM requirements for your project.

Your thoughts and comments are appreciated