What are the Different Methods of Concrete Moisture Testing?


Concrete moisture testing is a crucial step in ensuring the quality and durability of concrete structures. By measuring the moisture content in concrete, potential issues such as excessive moisture, which can lead to mold, mildew, or flooring failures, can be identified and addressed early on. In this article, we will explore various methods of concrete moisture testing and their significance in construction and maintenance projects.

1. Calcium Chloride Test

The calcium chloride test, also known as the ASTM F1869 test, is one of the most common methods used to measure concrete moisture. It involves placing a small dish with calcium chloride crystals on a concrete surface and covering it with a plastic dome. Over a specific period, the dish absorbs moisture from the concrete, and the weight gain is measured to determine the moisture vapor emission rate (MVER).

2. Plastic Sheet Test

The plastic sheet test is a simple and cost-effective method to assess moisture in concrete slabs. It involves placing a plastic sheet tightly over a concrete surface for a specified duration. After removing the sheet, any condensation or darkening of the concrete indicates the presence of excess moisture.

3. Electrical Resistance Test

Electrical resistance tests, such as the ASTM F2170 test, utilize specialized probes inserted into pre-drilled holes in the concrete. These probes measure the relative humidity (RH) within the concrete slab. By monitoring the RH levels, construction professionals can evaluate the moisture condition and determine if it meets the required standards for flooring installation.

4. Moisture Meters

Moisture meters are handheld devices used to measure the moisture content of various materials, including concrete. These meters employ different technologies, such as pin-type or pinless sensors, to assess moisture levels. While moisture meters provide immediate results, they are more suitable for surface-level moisture testing rather than evaluating moisture deeper within the concrete slab.

IFTI’s Concrete Testing Services

At IFTI, we understand the importance of accurate and reliable concrete moisture testing. Our team of experienced professionals is well-versed in a wide range of testing methods, ensuring comprehensive evaluations for our clients. With state-of-the-art equipment and a commitment to excellence, we offer rigorous, comprehensive testing options. By choosing IFTI’s concrete testing services, clients can confidently proceed with their construction projects, knowing that the moisture levels in their concrete are thoroughly evaluated and controlled.


Concrete moisture testing plays a vital role in ensuring the integrity and longevity of concrete structures. With various testing methods available, construction professionals can accurately assess the moisture content and make informed decisions during construction, renovation, or flooring installations. Contact IFTI today to benefit from our expertise and reliable concrete testing services.

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