What is Relative Humidity?
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Relative humidity measures the density of water vapor in a space relative to the temperature in the same space." |
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ASTM- F2170
This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory tests. This test method comprises two procedures for forming holes in the concrete into which a relative humidity probe is placed. Procedure A for hardened concrete involves drilling a cylindrical hole in the concrete with a rotary hammer drill, then placing a hollow sleeve to line the hole. Procedure B is an alternate procedure for fresh concrete, which involves forming a cylindrical hole in concrete by placing a hollow cylindrical tube in the formwork, then placing and consolidating concrete around the tube. The liner or tube permits measurements of Relative Humidity at a specific well-defined depth in the concrete. Relative humidity and temperature sensors in the cylindrical probe is then read by a digital meter and information recorded on our service report. |
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