ASTM F formally recognizes the use of in situ probes as a means of conducting relative humidity testing. In fact, ASTM F represents a fundamental. Last previous edition approved in as. F DOI: / F/FA. 2 For referenced ASTM standards, visit the ASTM . ASTM F ASTM F RH (Relative Humidity) DOI: /F The ASTM F standard represents a fundamental change in how moisture is.
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April 7, at 3: October 31, at All sensors must be calibrated no less than 30 days prior to use. This site uses Akismet to reduce spam.
First, I have to state that F is asm for interior applications that are under consistent ambient air controls. This process requires time and quantifiable concrete moisture measurements to verify. Concrete f270-11 moisture is a major cause of concrete flooring failure. The cap fits perfectly and is as flat as can be. F requires three test holes for the first ft 2 and, at least, one additional hole for each additional ft 2.
The first thing I would look at is the assembly that you are installing. June 9, at 1: When concrete is mixed and poured, water vapor migrates from the bottom of the slab to the surface to evaporate. Is this acceptable or compromise the test? At this point, if v2170-11 test fails, they all fail.
Contact My Account 0 items Operation is that easy! And moisture can still be an issue at grade so concrete foundations must be designed to include proper moisture drainage. RH Testing and Reporting Drill and prepare the test holes.
ASTM F Explained – ASTM F Information
Ligno-VersaTecpin-pinless-RH, meter only. 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. These requirements for the standard apply regardless of the RH test method being used.
Once you find out the methodology they require to meet warranty, I would reach out to someone within RCI in your area to conduct the tests. Each test hole must be drilled to the depth determined at Step 5 above section 10 of ASTM F and properly prepared. General contractors must bear in mind two interactive processes when they are looking at construction schedules: Use up or down buttons to correct settings.
Without it, even a well-dried and functioning foundation can end up with concrete slab moisture problems. Depress SET Button to check settings. You consent to our cookies if you continue to use our website. The depth is calculated to the bottom of the test hole the location of the installed RH sensor or probe.
If not, call their technical team and ask the questions. October 27, at This will NOT be valid for ASTM compliance, but can certainly provide a target timeline for schedule decisions or for choosing alternate adhesive or flooring options that might have higher moisture tolerances. It can be used for: The test hole depth is not a fixed depth, but it must be calculated based on slab thickness and number of drying sides: With all areas of ASTM-compliant RH testing, precision is key and data integrity must also be the focus for each flooring professional.
Section 9 of the standard requires that both the slab and the ambient air above it must be at service conditions for a minimum of 48 hours before testing.
Many contractors use vapor barriers directly under the slab to slow moisture permeation. It has been believed that the change in the desiccant weight could be translated into a moisture ratio for the concrete beneath.
10 Guidelines for ASTM F2170 Preparation and Testing
UPS peak season may cause delays. Surface-based test results will fluctuate, even more, under these changes in environmental conditions. 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? If you forward to 1: Section 11 of ASTM F details the requirements of each report, including test hole location, dates and times of measurements, RH reading, temperature reading, and any other conditions that might impact the RH reading see section 11 for complete reporting requirements.
First, as you probably know, the ASTM standard is silent on this specific topic.
Ligno-Tec RH Concrete Moisture Meter
In this way, in situ measurement provides a composite picture of overall slab moisture levels, and provides the data necessary to make business decisions regarding flooring installations. Does the finish roof product have specifications for testing the concrete deck?
Leave a Reply Cancel reply Your email address will not be published. The total area of the slab and the number of test holes must be recorded on your report. Can you please let me know your recommendation on this? RH BluePeg can be used as a measuring device for ambient relative humidity and temperature or placed in a measuring sleeve, which can be inserted into a predrilled hole in the testing area. In-situ probe concrete testing: Instrument turns itself off automatically. How do you handle this problem?