Geocomp > Geosynthetic > Standard Test Method for Determining Apparent Opening Size of a Geotextile

Standard Test Method for Determining Apparent Opening Size of a Geotextile

Test Method Title

Standard Test Method for Determining Apparent Opening Size of a Geotextile

Reference Number

ASTM D4751

Material

Geotextile

Test Property

Apparent Opening Size (AOS)

Description of Test

A geotextile specimen is placed in a sieve frame, and sized glass beads are placed on the geotextile surface. The geotextile and frame are shaken laterally so that the jarring motion will induce the beads to pass through the test specimen. The procedure is repeated on the same specimen with various size glass beads until its apparent opening size has been determined.

Number of Test Specimens

5

Test Specimen Size

10" diameter (effective 8" diameter)

Keywords

AOS, apparent opening size, O95