Standard Specification for Circular-Knit Geotextile for Use in Subsurface Drainage Applications
NORMA vydána dne 15.2.2019
Označení normy: ASTM D6707/D6707M-06(2019)
Datum vydání normy: 15.2.2019
Počet stran: 2
Přibližná hmotnost: 6 g (0.01 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
This specification covers circular-knit geotextiles for use on the outside of perforated pipes and Class B geocomposites in subsurface drainage applications. Material covered by this specification comprises Type A and Type B fabric geotextiles, which have been used extensively as filtration geotextiles in combination with subsurface drainage pipes. The geotextile shall be manufactured from polymeric materials by a circular-knit process, which will ensure a consistent, continuous fabric without seams. Tests for water permittivity, apparent opening size, and puncture strength shall be performed and shall conform to the requirements specified. Per service requirement, additional tests for chemical resistance and durability may be performed as well.
Keywords:
circular-knit, drainage pipe, fabric, filter, geocomposite, geotextile, perforated pipe,, ICS Number Code 59.080.70 (Geotextiles)