Call number:
ZSP-201-76/22
In:
CRREL Report, 76-22
Description / Table of Contents:
Several membrane materials used or considered for MESL (membrane-enveloped soil layer) utilization of poor soils in road construction have been tested for cold effect on puncture and stiffness. PE (polyethylene) film was also tested for solvent soak effects. A simple blunt needle apparatus was devised for puncture testing. For plastic films (mainly PE), both puncture resistance and stiffness increase at low temperature (0 F, -18 C). For non-woven, spunbonded fabrics these properties are little affected by cold. For both non-wovens and PE film, puncture and bending strengths increase linearly with weight or thickness. The slope is steeper for the non-wovens, which generally are stronger on a per unit weight basis. PE film soaked in a hydrocarbon solvent swelled approximately 17% and lost about 30-40% its puncture strength. These effects are apparently reversible upon drying. Consideration has been given to sealing and patching requirements and to the drying of sealant liquids when adhering film to film. Also considered have been possible slippage related to the reported low angle of friction of plastic films in soil and the possibility of lamination for improved membrane properties.
Type of Medium:
Series available for loan
Pages:
v, 60 Seiten
,
Illustrationen
Series Statement:
CRREL Report 76-22
URL:
https://cdm16021.contentdm.oclc.org/digital/collection/p266001coll1/id/6187
Language:
English
Note:
CONTENTS
Page
Abstract
Preface
Introduction
Experimental
Materials
Apparatus
Procedure
Results
Discussion
PE solvent soak and swelling
PE solvent soak and puncture
Film puncture rate effect
Bending orientation
Comparative tables and graphs
Puncture and temperature
Bending and temperature
Test result vs thickness and weight
General considerations
Conclusion and recommendations
Literature cited
Appendix
Detailed data tables
Denier explanation
Location:
AWI Archive
Branch Library:
AWI Library
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