Laboratory Performance of Wicking Fabric H2Ri in Silty Gravel, Sand and Organic Silt

Connor, Billy; Zhang, Xiong

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Laboratory Performance of Wicking Fabric H2Ri in Silty Gravel, Sand and Organic Silt

2016-05-01
By Connor, Billy ; Zhang, Xiong

File Language:

English

Details

Creators:

Connor, Billy ; Zhang, Xiong
Corporate Creators:

Alaska University Transportation Center
Corporate Contributors:

Alaska. Department of Transportation. Research, Development, and Technology Transfer ; Pacific Northwest Transportation Consortium (PacTrans) (UTC)
Subject/TRT Terms:
Publication/ Report Number:

4000130
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Alaska University Transportation Center
Abstract:

The use of wicking fabric, H2Ri, is growing in its use to remove water from roadway and airport embankments. Past research has shown H2Ri to be effective in sands and fine grained materials in roadways up to 32 feet in width. However, there is a desire to use H2Ri for airports which require a minimum width of 75 ft. This project tested H2Ri in a 73-foot flume in a crushed surface course with 14 % fines. In addition, the fabric was tested in a 22-foot flume with a sand and with an organic clay. The intent was to bracket the material for which the H2Ri will work. The study showed that the fabric will easily move water 73 feet in a silty gravel. The study showed that the fabric was also able to readily remove water in sand. However, the fabric blinded when used in organic silt and proved ineffective. The study also showed that using simple overlap of the H2Ri as a splice, while effective, was not as efficient at moving water as the fabric itself. Consequently, moisture tended to build up around the splice.
Format:

PDF
Funding:

Alaska DOT&PF: Z630410000;AUTC: G8085 Fund 338035
Download URL:

https://rosap.ntl.bts.gov/view/dot/31014/dot_31014_DS1.pdf
File Type:

[PDF - 3.95 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha-512:9d1acacf64ea6164cb2343b73c60800843125874bd15f1aa7e004f6d48d0e5a11c0fd001a2f774086c5897fc2e1bf7d88024bba93c6ccd9a725d28259b8549fc

File Language:

English

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