There are two main tests within ASTM C309 Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete:  the Water Retention Test and Reflectance Test.  These two test are performed by making a specified mortar and placing it in this rectangular pan then spraying or brushing on a curing compound such as US SPEC Wax White.  Then the water loss measurements are taken and a reflectance measurement at 72 hours.

More Curing and Sealing Repairs