ISSN: 1945-7545
CODEN: GTJODJ
Published Online: 12 July 2006
Page Count: 8

Bubblepoint Testing of Geotextiles: Apparatus and Operation

Elton, DJ
Assistant Professor, Civil Engineering, Auburn University, AL

Hayes, DW
Graduate Student, Civil Engineering, Auburn University, AL

Adanur, S
Professor, Polymer & Fiber Engineering, Auburn University, AL

(Received 9 June 2005; accepted 6 June 2006)

Abstract

A simple, inexpensive device for measuring geotextile pore sizes, using ASTM D 6767, is described and its operation is outlined with guidance for correct operation. The accuracy and consistency of the test are shown. The test appears to have better consistency than the apparent opening size (AOS) test, avoids the inherent and operator-dependent problems of theAOS test, and further, describes the entire pore size distribution of a geotextile, making it useful for developing a more complete filter criterion. Suggestions are made for improving ASTM D 6767.

Keywords:
bubblepoint test, O95, apparent opening size, filtration, pore size distribution, geotextile

Paper ID: GTJ100308
DOI: 10.1520/GTJ100308
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