Help solve floor moisture problems with the ACI 302.2R-06!
This guide contains materials, design, and construction
recommendations for concrete slabs-on-ground and suspended slabs that are to
receive moisture-sensitive flooring materials. These flooring materials include
sheet rubber, epoxy coatings, vinyl composition tile, sheet vinyl, carpet,
athletic flooring, laminates, and hardwood. Chapters 1 through 8 provide an
understanding of concrete moisture behavior and drying, and show how recommended
construction practices can contribute to successful performance of floor
covering materials. This background provides a basis for the recommendations in
Chapter 9 to improve performance of floor covering materials in contact with
concrete moisture and alkalinity.
Because this guide is specific to floor moisture problems and
solutions, refer to the most current editions of both ACI 302.1R, “Guide for
Concrete Floor and Slab Construction,” and ACI 360R, “Design of
Slabs-on-Ground,” for general information. These two documents contain
guidance on floor design and construction that is needed to achieve successful
floor covering performance. 42 pp.
ACI 302.2R-06 - Guide for Concrete Slabs that Receive Moisture-Sensitive Flooring Materials
- Table of Contents:
- Introduction and background
- Introduction
- Flooring moisture issues
- Concrete slabs that receive flooring materials
- Changes in construction methods and materials that affect floor systems
- Floor flatness changes with time
- Other considerations
- Chapter 2-Concrete moisture basics, p. 302.2R-5
- Introduction
- Moisture movement
- Concrete drying profiles
- Effects of moisture movement
- Equilibrium moisture content
- Drying and wetting of concrete
- Moisture loss during drying
- Concrete moisture testing, p. 302.2R-12
- Introduction
- Standard guides and test methods
- Qualitative and quantitative tests
- Test parameters
- Underlayment testing
- Comments on moisture vapor emission rate tests
- Concrete pH testing, p. 302.2R-19
- Introduction
- Test methods
- ASTM test differences
- Factors affecting pH test results
- Floor covering and adhesive manufacturer’s recommendations, p. 302.2R-21
- Introduction
- Manufacturer’s recommendations
- Dealing with multiple floor covering requirements
- Drying of concrete, p. 302.2R-23
- Introduction
- Concrete drying with no external source of moisture
- Concrete drying: exposed to moisture from below
- Concrete drying: exposed to moisture from above
- Concrete drying from both sides
- Effect of concrete-making materials
- Effect of fresh and hardened concrete properties
- Effect of thickness
- Effect of curing
- Drying of mature concrete
- Effect of drying environment
- Drying at exposed edge
- Drying of lightweight concrete
- Vapor retarder/barrier, p. 302.2R-28
- Introduction
- Vapor retarder/barrier location
- Vapor transmission through retarder/barrier
- Floor covering materials, p. 302.2R-32
- Introduction
- Communication between architect and engineer
- Floor covering technical resources
- Floor adhesives and coverings
- Effect of moisture in flooring adhesives
- Effect of concrete moisture on adhesive performance
- Design and construction recommendations, p. 302.2R-35
- Introduction
- Testing
- Vapor retarder/barrier
- Concrete materials
- Concrete properties
- Surface finish
- Curing
- Surface preparation
- Repairs
- Protection
- Moisture mitigation
- References, p. 302.2R-39
- Referenced standards and reports
- Cited references
- Appendix-Two case studies of moisture-related flooring problems, p. 302.2R-41
- A.1-Value engineering results in flooring failure
- A.2-Postconstruction trench drains results in flooring failure
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