Call number:
ZSP-201-79/16
In:
CRREL Report, 79-16
Description / Table of Contents:
In 1973 two membrane encapsulated soil layer (MESL) test sections were constructed into existing gravel surfaced roads at Elmendorf A FB and at Ft. Wainwright in Anchorage and Fairbanks, Alaska, respectively. The Elmendorf AFB MESL contains a silty clay soil and the Ft. Wainwright MESL contains a nonplastic silt. Both sections were constructed at soil moisture contents of approximately 2% to 3% below optimum for the CE-12 compactive effort. There were no indications of soil moisture migration during freezing in either test section and after-thaw field California Bearing Ratio values were nearly equal to values measured before freezing. There is growing evidence of a slight increase in the overall soil moisture content in the Elmendorf AFB MESL possibly from moisture entering through the single layer polyethylene sidewalls which were not treated with asphalt emulsion. There is good evidence that the membrane of the same section might have received damage during a soil sampling operation which allowed localized moisture infiltration. A two-layer polyethylene membrane used in the Ft. Wainwright MESL is considered a more positive moisture barrier than the single sheet and a justifiable added cost for permanent construction.
Type of Medium:
Series available for loan
Pages:
v, 27 Seiten
,
Illustrationen
Series Statement:
CRREL Report 79-16
URL:
https://cdm16021.contentdm.oclc.org/digital/collection/p266001coll1/id/5297/rec/1
URL:
https://hdl.handle.net/11681/9048
Language:
English
Note:
CONTENTS
Preface
Introduction
Laboratory studies
General
Elmendorf AFB silty clay
Fairbanks silt
Field studies
Elmendorf AFB MESL
Ft. Wainwright MESL
Traffic use
Elmendorf AFB MESL
Ft. Wainwright MESL
Performance observations
Elmendorf AFB MESL
Ft. Wainwright MESL
Conclusions
Elmendorf AFB MESL
Ft. Wainwright MESL
General
Literature cited
Appendix A. The MESL concept
Appendix B. Classification, compaction, freezing and CBR test results for Fairbanks silt
Location:
AWI Archive
Branch Library:
AWI Library
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