Do Moisture Meters Really Work?

Concrete moisture meters are non-destructive testing tools used to measure the moisture content of concrete. They are essential for determining if concrete is dry enough to receive floor coverings and coatings or if it is too wet and needs additional drying time.

Moisture meters utilize two primary technologies: pin-type and non-pin-type. Pin-type meters have two prongs that are inserted into the concrete, while non-pin-type meters use electromagnetic waves to measure moisture content.

How Accurate Are Moisture Meters?

The accuracy of moisture meters can vary depending on various factors, including concrete density, temperature, and calibration. It is recommended to use multiple readings from different locations and average the results for a more accurate measurement.

How to Use a Moisture Meter

• Clean the surface of the concrete to be measured.
• For pin-type meters, insert the prongs into the concrete to the recommended depth.
• For non-pin-type meters, place the sensor on the surface of the concrete and ensure good contact.
• Read the moisture content reading from the meter’s display.

Choosing the Right Moisture Meter

When choosing a moisture meter, consider the following factors:

• Accuracy: Look for meters with a high level of accuracy.
• Ease of Use: Choose meters that are easy to calibrate and operate.
• Durability: Select meters that can withstand jobsite conditions.

Conclusion

Moisture meters are valuable tools for ensuring the proper drying of concrete. They provide reliable moisture content readings, allowing contractors to make informed decisions about when to apply floor coverings and coatings.