GEOTEXTILES TO MITIGATE FROST EFFECTS IN SOILS: A CRITICAL REVIEW
The use of geotextiles to mitigate frost effects in soils has been studied, but few techniques have been developed. Guidelines developed for the placement of granular capillary barriers are presented to serve as preliminary guidelines for geotextile capillary barriers. Laboratory research shows that pore size distribution, wettability, and, for some geotextiles, thickness influence capillary barrier performance in a given soil. Geotextiles that easily wet do not reduce frost heave and may even exacerbate it. On the basis of the literature reviewed, guidance for selection of geotextile capillary barriers in field trials is given. If geotextiles function as capillary barriers during freezing and reinforce or separate and filter the subgrade at the base course interface during thaw, then the potential exists for their use in a combination of functions to reduce frost-related damage in geotechnical structures. It was found that properly designed geotextiles have the potential to reduce frost heave by functioning as capillary barriers, they can be filters for capillary barriers, and they can provide reinforcement or separation or filtration (or all of these) of the subgrade soil to reduce thaw-related damage.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309059062
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1534, Geosynthetics: Cold Regions, Flexible Pavements, and Other Issues.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Henry, K S
- Publication Date: 1996
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 5-11
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Serial:
- Transportation Research Record
- Issue Number: 1534
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Base course (Pavements); Field studies; Filtration; Frost heaving; Frost susceptibility; Geotextiles; Guidelines; Laboratory studies; Location; Material reinforcement; Performance; Pore size distribution; Thickness; Traffic mitigation; Wetting
- Uncontrolled Terms: Capillary barriers; Mitigation; Separation
- Old TRIS Terms: Frost effects; Frost heave; Placement; Wettability
- Subject Areas: Geotechnology; Highways; Materials; I33: Other Materials used in Pavement Layers;
Filing Info
- Accession Number: 00728450
- Record Type: Publication
- ISBN: 0309059062
- Files: TRIS, TRB
- Created Date: Nov 19 1996 12:00AM