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Lab Services: Geosynthetic testing

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Test Method Title

Standard Test Method for Determining Apparent Opening Size of a Geotextile

Reference Number

ASTM D4751

Material

Geocomposite

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.

Preferred Test Sample Size

3' wide x roll width

Number of Test Specimens

5

Test Specimen Size

10" diameter (effective 8" diameter)

Keywords

AOS, O95, apparent opening size

For more information, contact GeoTesting Express:



Atlanta

770.645.6575


Boston

978.635.0424


Chicago

224.676.1371


New York

212.566.6630



info@geotesting.com

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