Calcium Chloride (CC) Moisture Test Kit

American Moisture Test provides high-quality Calcium Chloride Moisture Test Kits. AMT designs their calcium chloride moisture tests to follow the exact specifications in the ASTM 2016 protocol.

This test is used to obtain a numerical value indicating the rate of moisture vapor escaping from a concrete floor surface in a 24 hour period. The results indicate whether or not a surface is suitable to receive floor coverings, coatings or cement toppings. The test may be used for testing vapor control coating products before and after application as a field quality control test.

Developed by the US Rubber Manufactures Association (RMA) in the 1950’s, this test method was released as ASTM F1869 in late 1998 and remains the most widely used test method for testing.

Application

Clean a 20” x 20” area free of flooring, coatings, patching cements, adhesive residue and expose a clean concrete surface. To speed the process, a dustless grinder may be used to clean the surface. Do not use acid etching, water, strippers or clean sweeping agents.

The amount of tests required is a simple calculation of the total square feet to be floored, at all grade levels. ASTM F1869 guidelines state three (3) tests for the first 1,000 square feet and one (1) additional test for each additional 1,000 square feet thereafter. Examples: 1,000 ft² = 3 tests | 10,000 ft² = 12 tests.

Begin testing at the same temperature and humidity expected during normal building use. If this is not possible, ASTM F1869 allows for test conditions to be 65ºF to 75ºF and 40% to 60% relative humidity this needs to be maintained for 48 hours prior to and during testing. The use of a temperature and humidity data logger may be used to verify conditions during testing. Contact our technical department for details.

Results

The final test results are reported as a quantity of moisture expressed as the weight of condensed gas (liquid) in pounds that is emitted over 1,000 ft² area during a 24 hour period. Results may vary from 0.00 to 30.00 /1,000 ft²/24 hours.