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| + | [[File: Geotextile-GSI.JPG|thumb|The properties of geotextiles vary widely.]] |
| + | See [[Clogging]] for notes on their application in LID structures. |
| + | |
| Geotextiles can be used to prevent downward migration of smaller particles in to larger aggregates, and slump of heavier particles into finer underlying courses. | | Geotextiles can be used to prevent downward migration of smaller particles in to larger aggregates, and slump of heavier particles into finer underlying courses. |
| The formation of biofilm on geotextiles has also been shown to improve water quality: | | The formation of biofilm on geotextiles has also been shown to improve water quality: |
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| | | |
| {|class="wikitable" | | {|class="wikitable" |
− | |+ Recommended criteria for selection of geotextile fabric | + | |- |
| + | |+Recommended criteria for selection of geotextile fabric |
| |- | | |- |
− | !style="background: darkcyan; color: white"|Percent soil/biomedia passing 0.075 mm (#200 sieve) | + | !Percent soil/filter media passing 0.075 mm (#200 sieve) |
− | !style="background: darkcyan; color: white"|Non-woven fabric apparent opening size (AOS, mm) | + | !Non-woven fabric apparent opening size (AOS, mm) |
− | !style="background: darkcyan; color: white"|Woven fabric percent open area (POA, %) | + | !Woven fabric percent open area (POA, %) |
− | !style="background: darkcyan; color: white"|Permittivity (sec<sup>-1</sup>) | + | !Permittivity (sec<sup>-1</sup>) |
| |- | | |- |
| |>85||≤ 0.3||-||0.1 | | |>85||≤ 0.3||-||0.1 |
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| |≤ 5||≤ 0.6||≥ 10||0.5 | | |≤ 5||≤ 0.6||≥ 10||0.5 |
| |} | | |} |
− | | + | ===Performance research=== |
− | ==References== | + | http://www.mdpi.com/2073-4441/7/4/1595/htm |
− | ''<references />''
| + | ---- |
| [[category:materials]] | | [[category:materials]] |