Field Test of a MESL (Membrane-Enveloped Soil Layer) Road Section in Central Alaska

The MESL (Membrane-Enveloped Soil Layer) concept for using fine- grained soil as a structural embankment for expedient military uses was tested in a subarctic environment over two freeze-thaw seasons. The encapsulated silt was placed at a moisture content of approximately 4.5% below the optimum of 1...

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Bibliographic Details
Main Authors: Smith, North, Pazsint, Daniel A.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1975
Subjects:
Civil Engineering
Construction Equipment
Materials & Supplies
*POLYPROPYLENE
*FINE GRAINED MATERIALS
*ROADS
ALASKA
ASPHALT
COLD REGIONS
SOILS
MEMBRANES
PAVEMENT BASES
THAWING
RUNWAYS
EMBANKMENTS
WATERPROOFING
SILT
MILITARY VEHICLES
PERMAFROST
PAYLOAD
PERFORMANCE(ENGINEERING)
MEMBRANE ENVELOPED SOIL LAYER
MESL(MEMBRANE ENVELOPED SOIL LAYER)
AS894
PE62112A
WU001
permafrost
Subarctic
Alaska
Online Access:http://www.dtic.mil/docs/citations/ADA047366
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA047366
Description
Summary:The MESL (Membrane-Enveloped Soil Layer) concept for using fine- grained soil as a structural embankment for expedient military uses was tested in a subarctic environment over two freeze-thaw seasons. The encapsulated silt was placed at a moisture content of approximately 4.5% below the optimum of 17. 5% for the CE-12 compaction effort. Non-woven polypropylene membrane with CRS-2 emulsified asphalt was used as a waterproofing agent for both the bottom and top membranes. The emulsion was hand-applied with roofing cement brushes to simulate a remote tactical situation. The test section had dimensions of approximately 200 by 20 by 2-1/2 ft and had a sand surfacing about 1-1/2-in. thick. The north end of the section, which was undamaged by snow removal equipment, withstood over 500 traffic passes of a loaded military dump truck having a gross weight of nearly 9 tons during the second and third spring thaw seasons without major rutting.

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