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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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| #The suitable apparent opening size (AOS) for non-woven fabrics, or percent open area (POA) for woven fabrics, to maintain water flow even with sediment and microbial film build-up. | | #The suitable apparent opening size (AOS) for non-woven fabrics, or percent open area (POA) for woven fabrics, to maintain water flow even with sediment and microbial film build-up. |
| | | |
− | {|class="mw-collapsible mw-collapsed wikitable" | + | {|class="wikitable" |
| |- | | |- |
− | ! style="background:white; color:red"|Recommended criteria for selection of geotextile fabric'''
| + | |+Recommended criteria for selection of geotextile fabric |
| |- | | |- |
− | !style="background: darkcyan; color: white"|Percent soil/filter media 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=== |
| + | http://www.mdpi.com/2073-4441/7/4/1595/htm |
| + | ---- |
| [[category:materials]] | | [[category:materials]] |