Title: CFM: Concrete Floors and Moisture

Author(s): Howard M. Kanare

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 164

Keywords: alkalies; concrete floors; construction practices; floor coverings; flooring; mildew; moisture; moisture-proofing; mold; vapor retarders.

DOI:

Date: 1/1/2008

Abstract:
Unwanted moisture in concrete floors annually causes millions of dollars in damage to buildings in the United States. Problems from excessive moisture include deterioration and de-bonding of floor coverings, trip-and-fall hazards, microbial growth leading to reduced indoor air quality, staining, and deterioration of building finishes. Understanding moisture in concrete leads to design of floors and flooring systems that provide excellent service for many years. This publication discusses sources of moisture, drying of concrete, methods of measuring moisture, construction practices, specifications, and responsibilities for successful floor projects. The second edition incorporates a brief discussion of terrazzo issues, an extended discussion of issues with ASTM F1869 moisture emission testing, additional references on drying times of lightweight concrete, and updates to the sources of supplies and standards.