White Paper

11 Pages
  • 11 Pages

Concrete In-situ Relative Humidity Testing – Friend or Foe?


Moisture related floor covering system failures continue at an unacceptable rate.

Distress and failure claims are not limited to slab-on-ground construction, moisture-related claims occur when floor coverings are installed over suspended concrete slabs as well. All affected parties understand that moisture-related floor covering system distress and failure is an extremely costly occurrence. Whether the cost is in dollars, reputation or good will, failures are costly. It is long past time that such failure should be widespread. Concrete dryness testing must be properly performed, accurately interpreted, and acted on with a ferocious desire to prevent failure. This white paper is intended to consider the value associated with concrete in-situ relative humidity testing under normal field conditions and contains background information related to concrete drying and the passage of moisture from concrete.



George James Donnelly

George James Donnelly

George Donnelly Testing and Inspections

  • Principal at George Donnelly Testing and Inspections
  • Business focus is on concrete dryness testing and floor covering system failure analysis
  • Conducts regular seminars dealing with concrete moisture emission and its effect on floor covering systems
  • Author, co-author of related articles ‘When 3 Pounds is not 3 Pounds’, ‘Concrete In-situ Relative Humidity Testing, Friend or Foe’, ‘Burnished Concrete and Floor Covering Installation’
  • Member ASTM committee E.06 on Building Standards, F.06 on Resilient Floors, ACI associate member committee 302, ICRI
  • Can be contacted at (501) 915-0626 or [email protected]

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