Evaluate H2RI Wicking Fabric for Pavement Application - Year 2

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Author
Zhang, Xiong
Connor, Billy
Keyword
Geotextiles (Rbmdxcet)
Geosynthetics (Rbmdxce)
Woven fabrics (Rbmdxcxf)
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URI
http://hdl.handle.net/11122/10380
Abstract
The Tencate H2Ri wicking fabric has proven to work well on two roadway sections on the Dalton Highway. In each the fabric has reduced the water content in the embankment resulting in a maintenance free section. This project used a 24 foot flume in the laboratory to evaluate the effectiveness of the fabric on well graded sand and organic silt. The fabric effectively removed the moisture in the well graded sand. However, the organic silt blinded the wicking fibers which eliminated the capillary moisture movement. The results also demonstrated that overlapping the fabric for joints is not efficient
Table of Contents
CHAPTER 1 INTRODUCTION .................................................................................................... 1 CHAPTER 2 LITERATURE REVIEW ......................................................................................... 1 2.1 Adverse Effects of Subsurface Water in Pavement Design .................................................. 1 2.2 Types and Sources of Subsurface Water ............................................................................... 5 2.3 Conventional Drainage Design Methods .............................................................................. 5 2.4 Comparisons of Conventional and New Drainage Design Concept ................................... 12 2.5 Geosynthetic Application in New Drainage Design ........................................................... 14 2.6 Geotextile with Wicking Ability ......................................................................................... 15 2.7 Case Studies of Geotextile with Wicking Ability ............................................................... 20 2.8 Potential Issues .................................................................................................................... 27 2.9 Reference ............................................................................................................................. 31 CHAPTER 3 TESTING FLUME SETUP .................................................................................... 33 CHAPTER 4 TEST RESULTS AND DISCUSSIONS ................................................................ 37 Case 1: Wicking Test for Sand .................................................................................................. 37 Case 2: Wetting Test for Sand ................................................................................................... 39 Case 3: Rewicking Test for Sand .............................................................................................. 41 Case 4: Wicking Test for Silt .................................................................................................... 43 Case 5: Rewicking Test for Silt ................................................................................................. 45 CHAPTER 5 SUMMARY AND CONCLUSIONS ..................................................................... 48
Date
2015-10-31
Type
Technical Report
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