Standard Guide for Preliminary Evaluation of Comparative Moisture Condition of Concrete, Gypsum Cement and Other Floor Slabs and Screeds Using a Non-Destructive Electronic Moisture Meter

Importancia y uso:

5.1 Moisture in concrete floor slabs affects the performance of flooring systems such as resilient, wood, and textile floor coverings and coatings. Manufacturers of such systems generally require moisture testing be performed before installation of coverings on floor slabs and screeds. The measurement of sub-surface comparative moisture condition in the upper 1.0 in. (25.4 mm) stratum of a concrete slab with a non-destructive moisture meter is one such method.

5.2 Excessive moisture in floor slabs after installation can cause floor covering system failures such as delamination, bonding failure, deterioration of finish flooring and coatings, and microbial growth.

5.3 5.3 Comparative moisture content tests indicate the moisture in the slab, which is usually referenced to the percentage of dry weight. That is:



Results indicate conditions at the time of the test.

5.4 Methods of meter calibration and factors affecting equilibration are described in Section 8.

Subcomité:

F06.40

Referida por:

F3513-24, D5295_D5295M-18, F3311-24, D7954_D7954M-22A

Volúmen:

15.04

Número ICS:

91.060.30 (Ceilings. Floors. Stairs)

Palabras clave:

anhydrite; comparative moisture content; concrete; dew point; flooring; floor slabs; gypsum; moisture; moisture content; moisture emission; moisture equilibrium; moisture vapor; relative humidity; temperature;