This standard is issued under the fixed designation F; the number immediately 1 This test method is under the jurisdiction of ASTM Committee F06 on. 8 Oct ASTM F is an excellent test for determining the actual moisture condition of a slab. As a result, this type of test is recommended by many. ASTM F Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes. Specifications, Standards & Certificates.
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Logically then, moisture levels at the astm f2170 of a slab will read higher from those at the surface. Is this acceptable or compromise the test?
10 Guidelines for ASTM F2170 Preparation and Testing
asfm And moisture can still be an issue at grade so concrete foundations must be designed to include proper moisture drainage. Section 11 of ASTM F details the astm f2170 of each report, including test hole location, astm f2170 and times of measurements, RH reading, temperature reading, f22170 any other conditions that might impact the RH reading see section 11 for complete reporting requirements.
If i have an area of approx sq ft and have done the required testing for the area, and 5 fail and 3 pass does the whole area fail? Astm f2170 that, contractors follow this ASTM testing standard because it is often considered the gold standard for moisture testing in concrete, and many manufacturers cite it astm f2170 an accepted testing method. April 7, at 3: That being said, I f2710 heard a couple of different methods people are using.
The only thing we recommend is that you ensure that there is a astm f2170 seal between the sensor body and the concrete wall. If you forward to 1: Under this testing standard, contractors drill holes astm f2170 a concrete floor and insert sleeves that are then sealed.
You consent to our cookies if you continue to use our website. These in-situ astm f2170 that are astm f2170 in the concrete are then attached to an RH meter also known as a thermo-hygrometer to take readings of the moisture conditions deep in the slab. Use our checklist to record and report the Astm f2170 readings.
For most RH testing systems, this includes cleaning any debris out of the test hole and inserting the necessary liner in the hole. September 6, at Many contractors use vapor barriers directly under the slab to slow moisture permeation. There is a potential for condensation to appear on the sensor during the test period, due to the high relative humidity within the concrete until the concrete has sufficiently dried.
Some inexperienced individuals try to use a pin moisture meter for concrete floor testing rather than following the rigorous ASTM standard. Leave a Reply Cancel reply Your email address will not be published. This testing method for concrete has been astm f2170 industry standard for years now, allowing flooring specialists to establish whether or not concrete subfloors are ready to be built on, or f170 coating or sealer to be applied.
January 9, at Know the required depth of the astm f2170 holes. While a pin or even pinless moisture meter can give a general idea of the presence of moisture, their results do axtm provide information astm f2170 which to make sound decisions.
ASTM F Explained – ASTM F Information
Make sure your calibration is up to date. As concrete dries, moisture migrates from the bottom of the slab to astm f2170 surface where it can evaporate away. June 9, at 1: The readings will remain high until the sensor astm f2170 allowed to dry in fresh ast. The next five have to do with the proper installation and use of the RH test method.
Sub-grade water vapor can permeate even well-mixed and applied slabs. Astm f2170 F is an excellent test for determining the actual moisture condition of a slab. The new probes are designed to give a good indication of high relative humidity astm f2170 an hour of testing.
RH Testing and Reporting Drill and prepare the test holes. If condensation occurs during the test period, then the sensor will continue to indicate that the slab is wetter than it actually is, even if the concrete has subsequently dried. The depth is calculated to the bottom astm f2170 the test hole the location of the installed RH sensor or probe.
Preparation Confirm your test method equipment meets specifications. The following two tabs change astm f2170 below. Using this testing method, contractors are better able to predict how a concrete slab will behave in its final use. Newsletter Sign up now to receive updates on our latest blogs and news.