ASTM D , Standard Test. Method for Indicating Moisture in. Concrete by the Plastic Sheet. Method. General Guidance. ASTM E , F ACI R ASTM D Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method. This standard is issued under the fixed designation D ; the 1 This test method is under the jurisdiction of ASTM Committee D33 on.
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An unsealed concrete slab will typically exhibit an appreciable moisture gradient, drier at the surface and wetter below.
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However, it is NOT recommended.
We have no amendments or corrections for this standard. Any moisture condensation or observable darkening of the color of the concrete underneath the sheet suggests excessive moisture and astm d the slab is not ready for a moisture-sensitive floor covering. Need more than one copy?
Some methods of concrete moisture testing use a simple, qualitative approach. A concrete floor slab with excess moisture pretty much guarantees a flooring failure due to serious problems such astj discoloration, bubbles, curling, adhesive deterioration, cupping, buckling, warping, mildew or mold.
This standard is not included in any packages. Instead, always rely on in situ RH moisture testing. As the voice of the U.
The ASTM D Concrete Moisture Test
An unsealed concrete slab will typically exhibit an appreciable moisture gradient, drier at the surface and wetter below. Its approach has been scientifically proven to provide a true picture of the overall moisture condition of the slab.
A concrete floor slab with excess moisture pretty much guarantees a flooring failure due to serious problems such as d42633, bubbles, curling, adhesive deterioration, cupping, buckling, warping, mildew or mold. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Yes, it matters a great deal. Please first verify your email before subscribing to alerts.
However, the reverse is not true. Instead, always rely on in situ RH moisture testing. Nor d it indicate whether additional moisture is entering the slab from below, such as in the absence astk a vapor retarder. For more information about RH testing, click here.
Subscription pricing is determined by: However, the reverse is not true. Accurate Concrete Moisture Measurement? Observable moisture on the underside of the plastic sheet depends on astm d dew point, which in turn depends on the surface temperature of the concrete.
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Yes, it matters a great deal. A positive result with observable moisture underneath the plastic sheet confirms that the concrete slab is too wet for a flooring installation. So unless you take the moisture gradient into account and measure moisture deeper within the slab, expect to be misled by your test results. Ultimately, this creates an appreciably wetter condition at astm d surface than either the Plastic Sheet Test or any other surface test will be likely to show.
Add to Alert PDF. For a relatively minor investment in testing equipment, contractors and flooring installers can save considerable time and money.
And more importantly, expect flooring failures. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.