ASTM F2170 STANDARD TEST METHOD PDF

Concrete slab moisture is a major cause of concrete flooring failure. When concrete is mixed and poured, water vapor migrates from the bottom of the slab to the surface to evaporate. This process requires time and quantifiable concrete moisture measurements to verify. ASTM F formally recognizes the use of in situ probes as a means of conducting relative humidity testing. In lay terms, the American Society for Testing and Materials recognizes that floor coverings often fail due to unsuitable concrete moisture levels beneath them.

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In the rapidly changing world of commercial flooring, new adhesives, mitigation products, installation methods, and flooring materials, alongside increasing environmental regulations and fast-track construction have created a complex environment in which floor covering products are installed.

This creates a demand for professional concrete moisture testing conducted by an experienced independent concrete slab moisture testing company. Pioneering solutions is what we do. Just ask and we may be able to provide a custom solution.

IFTI offers some of the most accurate and innovative testing methods on the market today. Most qualified professionals agree that the two most effective test methods to determine concrete moisture are the calcium chloride test for moisture vapor emission rate MVER and the in-situ relative humidity test RH. This test method provides valuable information about how much moisture is being emitted from the surface of the concrete.

This test is conducted by placing a dish of calcium chloride on an abraded concrete surface, then covering the test site with a plastic dome. The test site will remain sealed for hours to allow moisture from the surface of the concrete to absorb into the calcium chloride dish. Afterward, the amount of moisture absorbed during the test will measured by calculating the difference in the weight of the dish pre and post-test.

The final test result is expressed by pounds of vapor over 1, square feet of concrete over a 24 hour period. Testing with this method will provide valuable information about how much moisture is within the concrete. Detection of concrete moisture levels only at the surface of your concrete does not provide an adequate assessment, which is why it typically makes sense to test for relative humidity RH in addition to calcium chloride testing.

Relative humidity RH testing has been common practice outside the United States since the s. Since then, much research and field data has been obtained, and today almost all product manufactures recognize this test method for warranty purposes.

This test is conducted by drilling a hole into the body of the concrete and measuring the relative humidity at the bottom of the hole using a probe. A recent update to the ASTM standard has reduced the minimum equilibrium time to 24 hours, making this test more viable in time-sensitive situations.

This test method measures the concentration of hydrogen ions within an aqueous solution. Both high concentrations acidic and low concentrations alkaline are known to negatively affect the viability of flooring and adhesives. Since flooring manufacturers specify guidelines for pH, it is also critical to know if your concrete is within these specifications in order to avoid flooring failures or expensive flooring installation mistakes. Our IFTI certified field technicians have the skills and expertise necessary to inspect any floor.

If needed we can provide a comprehensive photo survey of an existing floor. Using high resolution cameras and cloud storage, you will have access to many high quality photos at the tip of your fingers.

To find out more about the capabilities of the software, call us at In these situations we recommend our subslab condition inspection where we will core through the concrete slab and determine the presence and location of the vapor retarder. All observations made during these audits will be compiled into a report, complete with photo documentation. If you are unsure which tests are required for your specific site and products, just give us a call.

We have solution specialists on call that can help determine the specific test necessary for any project. Contact Us Having a moisture problem? Ask the expert! Testing and Inspection Services. Concrete Moisture Testing In the rapidly changing world of commercial flooring, new adhesives, mitigation products, installation methods, and flooring materials, alongside increasing environmental regulations and fast-track construction have created a complex environment in which floor covering products are installed.

Inspection Services Our IFTI certified field technicians have the skills and expertise necessary to inspect any floor. Free Quote.

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ASTM F2170 Explained

For flooring and concrete professionals, ASTM F provides the standard for using relative humidity RH testing when measuring moisture content in concrete slabs. Meeting this standard provides the groundwork for limiting moisture-related flooring problems and the many liabilities and mitigation problems that can result from excess moisture. The standard provides precise guidelines for RH testing methods. While any professional must understand the exact requirements of standard F the most recent version , the following are 10 guidelines to help ensure that you have met the criteria laid out in ASTM F These requirements for the standard apply regardless of the RH test method being used. Is this acceptable or compromise the test? Thanks for the reply, Patrick.

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10 Guidelines for ASTM F2170 Preparation and Testing

In the rapidly changing world of commercial flooring, new adhesives, mitigation products, installation methods, and flooring materials, alongside increasing environmental regulations and fast-track construction have created a complex environment in which floor covering products are installed. This creates a demand for professional concrete moisture testing conducted by an experienced independent concrete slab moisture testing company. Pioneering solutions is what we do. Just ask and we may be able to provide a custom solution.

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