Calcium Chloride Test

Concrete slab moisture can cause problems with adhesion of coatings to your floor. This test should be done during the wettest time of the year. You'll need a small scale that is capable of measuring grams to two decimal places.

Sources of Moisture:
- Condensation.
- Moisture migration through the slab from wet soil under the slab
- Broken or leaking pipes buried below or in the concrete
- Surface water from leaks or flooding collecting on the concrete

• Calcium Chloride Test Method. ASTM F 1869, Standard Test Method for Measuring Moisture Vapor Emission Rate (MVER) of Concrete Subfloor Using Anhydrous Calcium Chloride
• Calcium Chloride Test allow you to achieve a quantitative figure which will coincide with floor manufactures requirements. Please note: The measurement obtained performing a Calcium Chloride only reflects the current condition of the concrete.
• Results will reflect a figure of weight in pounds of water evaporations giving off over 1000 square feet over a 24 hour period. The test must be done when the building is at the same temperature and humidity.