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Title: RESEARCH PAYS OFF: LIGHTWEIGHT WOOD FIBER MATERIAL USED FOR EMBANKMENT
Accession Number: 00638801
Record Type: Component
Availability: Find a library where document is available Abstract: In 1986 the Washington State Department of Transportation (WSDOT) planned to construct a portion of a new highway partially across a wetland in a coastal area of western Washington. The surficial layer of the foundation soils in the project area was of very soft and compressible organic sandy silt. After studying three options for solving the settlement, stability, and environmental problems of the site, WSDOT chose the option of using wood fiber as lightweight fill material over the soft ground and reinforcing it with geotextile because of the large required height for the fill. The cost was $972,221, a saving of $500,000 to $700,000 over other options. In 1992, samples from the 5-year-old wood fiber fill exhumed from beneath the 0.6-meter topsoil cover were found to be nearly fresh. Despite the traffic of predominately logging trucks, the pavement showed no distress. Water samples taken near the fill showed no negative impacts from any leachates.
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Pagination: p. 24-25
Publication Date: 1993-7
Serial: Features: Figures
(2)
; Photos
(1)
TRT Terms: Uncontrolled Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Environment; Finance; Geotechnology; Highways; Materials; I35: Miscellaneous Materials; I42: Soil Mechanics
Files: TRIS, TRB
Created Date: Nov 16 1993 12:00AM
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