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Thursday, May 21, 2020 | History

2 edition of Protection from moisture for slab-on-ground construction and for habitable spaces below grade. found in the catalog.

Protection from moisture for slab-on-ground construction and for habitable spaces below grade.

National Research Council (U.S.). Special Advisory Committee on Protection from Moisture for Slab-on-Ground Construction and for Habitable Spaces below Grade.

Protection from moisture for slab-on-ground construction and for habitable spaces below grade.

by National Research Council (U.S.). Special Advisory Committee on Protection from Moisture for Slab-on-Ground Construction and for Habitable Spaces below Grade.

  • 4 Want to read
  • 27 Currently reading

Published by National Academy of Sciences, National Research Council in Washington .
Written in English

    Subjects:
  • Dampness in buildings.

  • Edition Notes

    StatementPrepared and edited by William S. Brown, staff architect.
    ContributionsBrown, William Saunders, 1909-
    Classifications
    LC ClassificationsTH23 .N333 no. 15
    The Physical Object
    Paginationvi, 66 p.
    Number of Pages66
    ID Numbers
    Open LibraryOL5788499M
    LC Control Number59060066
    OCLC/WorldCa2186620

    single-storey construction with 90 mm framing, a mm wide footing and a 45 mm thick thermal break (see Figure 4a), there will be a 30 mm wide thermal bridge between the wall plate and the edge of the floor. Similarly, if mm framing is used in two-storey construction with a mm thick footing (see Figure 4b), there will be a 15 mm groundFile Size: KB. (R)OK N/A Alert (K) Waterproofing: Where high water tables or other soil-water conditions are know to exist, exterior foundation walls that retain earth and enclose habitable or usable spaces located below grade shall be waterproofed with a membrane extending from the top of the footing to the finished grade.

      The Advantages & Disadvantages of a House Built on a Slab Vs. a Crawl Space. Slab or crawl-space foundations present about the same number of advantages and disadvantages, so the choice you make. A slab-on-grade construction method in which the footings, foundation walls, and slab are cast at the same time. A sealing device used at concrete construction joints to serve as a moisture barrier. Foundation; above-grade framing system Footings must rest on undisturbed earth below the _____ line. (Determined by local building code.

    Solutions: Prevent soil below the slab from freezing. Never pour concrete on a frozen sub-grade. Frozen soil is unstable and may settle unevenly, causing the slab to stress and crack. Keep moisture out of the materials that come in contact with the slab. Provide heat in the house during construction to prevent freezing of the soil below the slab.   The next post, “Slabs for Colder Climates, Part 2: Installing Frost-Protected Shallow Foundations, will discuss design criteria for and installation issues with FPSFs. The American Society of Civil Engineers (ASCE) developed Standard for the Design and Construction of Frost-Protected Shallow Foundations.


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Protection from moisture for slab-on-ground construction and for habitable spaces below grade by National Research Council (U.S.). Special Advisory Committee on Protection from Moisture for Slab-on-Ground Construction and for Habitable Spaces below Grade. Download PDF EPUB FB2

National Research Council (U.S.). Special Advisory Committee on Protection from Moisture for Slab-on-Ground Construction and for Habitable Spaces below Grade.

Protection from moisture for slab-on-ground construction and for habitable spaces below grade. Washington, National Academy of Sciences, National Research Council, (OCoLC) Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book.

APPENDIXES Design Criteria for Residential Slabs-on-Ground. Final Report. Publica- tion Protection from Moisture for Slab-on-Ground Construction and for Habitable Spaces Below Grade. Publication No. Criteria for Hydraulic Fills. Publication No. Criteria for Compacted Fills. Publication No.

Protection of Slab on Ground Against Moisture Penetration The slab constructed above the ground is highly subjected to moisture penetration if no proper treatment is carried out. The moisture protection is provided for the floor over the slab by means of flooring materials like wood, carpet, linoleum, vinyl, impermeable floor coatings Author: Neenu Arjun.

feasibility of using post-tensioning in slab-on-ground construction and verified many of the BRAB assumptions. In the writer developed a complete, overall design system, later modified to con-form, in format, to BRAB Report #33 and fur-ther influenced by the work done by H. Platt Thompson, P.E.

This system gained wide. Fasteners used below grade to attach plywood to the exterior side of exterior basement or crawl-space wall studs, or fasteners used in knee wall construction, shall be of Type or stainless steel. Fasteners used above grade to attach plywood and all lumber-to-lumber fasteners except those used in knee wall construction shall be of Type or stainless steel, silicon bronze, copper.

Slab on Grade foundation, detail design; the basics. There are many different soil conditions and corresponding slab designs. This page is about how to build a thickened edge concrete slab on grade FPSF footing on soil with a high water table to prevent frost heave, by first installing drainage below the slab.

Related slab on grade foundation pages:Author: Emmanuel Cosgrove. And if a proper vapor retarder was installed, it has likely deteriorated and may no longer provide adequate moisture protection below the slab.

In this case, unless you install a moisture control system on top of the slab, moisture may be able to move to the slab’s surface, potentially leading to serious problems; even floor covering failures.

for design of slabs-on-ground, with the exception of highway and airport pavements, parking lots, and mat foundations. ACI Committee develops recommendations for construction of slab-on-ground and suspended-slab floors for industrial, commercial, and institutional buildings.

ACI R provides guidelines and recommendations on. Fasteners used below grade to attach plywood to the exterior side of exterior basement or crawlspace wall studs, or fasteners used in knee wall construction, shall be of Type or stainless steel.

Fasteners used above grade to attach plywood and all lumber-to-lumber fasteners except those used in knee wall construction shall be of Type or stainless steel, silicon bronze, copper. – Slabis onefoot or less below grade Summary Slab is one foot or less below grade • R‐10 insulation required, extending – 2 feet below grade for climate zones 4 and 5 – 4 feet below grade for climate zone 6 • Insulation should extend downward from the top of.

A concrete slab-on-ground is the heart of an industrial facility. The means are at hand to thwart the threat of operational disruption in these buildings.

We have it within our power to produce and place concrete in a way that will solve the two most egregious problems associated with slabs-on- ground: high shrinkage leading to curling and warping and uncontrolled vapor transmission.

Slab-On-Grade Construction - Technical Guide Deciding to build your home with a slab-on-grade foundation instead of a conventional basement or raised crawlspace foundation can greatly reduce your environmental impact during construction, and has the potential to offer significant financial savings as well.

By replacing concrete with lower-impact and better performing building materials like Author: Emmanuel Cosgrove. (Walking surface height is measured vertically to the floor or grade below at any point within 36 inches horizontally to the edge of the open side.) R and R Guards.

Required guards shall not have openings from the walking surface to the required guard height which allow passage of a sphere ___ inches in diameter. The sub-grade is the ground on which the floor is built. The sub-base is an optional layer located on top of the sub-grade and beneath the slab bottom (see Figure 1).

The sub-base, while not mandatory, can provide added benefits to the construction and performance of the File Size: 1MB.

Thomas K. Butt, Avoiding and Repairing Moisture Problems in Slabs on Grade, The Construction Specifier, December, 6.

Malcolm Rode and Doug Wendler, Methods for Measuring Moisture Content in Concrete, Concrete Repair Bulletin, March-April, 7. Steven H. Kosmatka, Floor-Covering Materials and Moisture. According to Chapter 9 (“Designing and Proportioning Normal Concrete Mixture”) of PCA’s Design and Control of Concrete Mixtures.

For any particular set of materials and conditions of curing, the quality of hardened concrete is determined by the amount of water used in. for below-slab moisture protection to either be omitted from the building design or for the materials used to provide a less than adequate protection, be installed improperly, or compromised during construction.

There are several other factors, such as the change from solvent-based to water-based adhesive formulations and. drying process, moisture behavior in concrete, testing for pH and moisture, and vapor retarders/barriers.

Based on this information, recommendations for the design and construction of concrete slabs that will receive moisture-sensitive or pH-sensitive flooring materials or. Below-grade insulation enhances thermal performance in buildings and helps protect concrete from freeze-thaw damage.

The U.S. Department of Energy (DOE) estimates insulating the exterior edge of slabs in slab-on-grade buildings can reduce winter heating bills from 10 to 20 percent.

1 Likewise, the lack of insulation on below-grade foundations, crawlspaces, and under slabs accounts. Many of the recommendations are established practice among architects, engineers, and tion of wood frame structures to provide maximum service-life involves four methods of control, which can be handled by proper design and construction: (1) control moisture content of wood, (2) provide effective termite controls, (3) use of.below grade, e.g.

basement walls (both above and below ground), basement oor slab, joints, intersections, and drainage. - the basement envelope elements consist of several sub-systems. Subgrades and Subbases for Slabs Use a vapor retarder that’s a minimum of 10 mils thick—15 mils is better moisture protection and also less likely to be punctured during designers will specify a loose sand layer on top of the subbase as a cushion layer.

Nothing dictates the performance of a concrete slab on ground.