Wednesday, January 13, 2010

About IGS

Scope

The International Geosynthetics Society (IGS) was founded in Paris, on 10 November 1983, by a group of geotechnical engineers and textile specialists (Council History). The Society brings together individual and corporate members from all parts of the world, who are involved in the design, manufacture, sale, use or testing of geotextiles, geomembranes, related products and associated technologies, or who teach or conduct research about such products.

Objectives

The aims of the IGS are:

  • to collect and disseminate knowledge on all matters relevant to geotextiles, geomembranes and related products, e.g. by promoting seminars, conferences etc.
  • to promote advancement of the state of the art of geotextiles, geomembranes and related products and of their applications, e.g. by encouraging, through its members, the harmonization of test methods, equipment and criteria
  • to improve communication and understanding regarding such products, e.g. between designers, manufacturers and users and especially between the textile and civil engineering communities

Organization

The IGS is registered in the USA as a non-profit organization. It is managed by five Officers and a Council made up of 10 to 16 elected members and a maximum of 5 additional co-opted members. These Officers and Council members are responsible to the General Assembly of members which elects them and decides on the main orientations of the Society.

Various IGS activities are being dealt within open committees:


There are also five closed committees:

Where it befits the objectives of the Society, local chapters can be established. 31 chapters are already in existence and others are in the formative stage.

NTRODUCTION

The International Geosynthetics Society is a professional society composed of many types of members: producers, suppliers, contractors, consultants, academicians, students and others. This variety presents many different points of view and interests.

Our geosynthetics discipline and industry, however, requires that all members support a common code of conduct when dealing with other members of the society, other members of our industry, and the general public who expect the IGS to be a leader in promoting the common good of the geosynthetics discipline.

In 1994 the Corporate Members Committee requested that the IGS Council develop a Code of Ethics in order to increase the credibility and image of the IGS and to remind our members of our professional responsibilities.

This request was approved and the IGS Council in February 1995 tasked this writer to prepare a draft Code of Ethics. The draft was published in the July 1995 edition of the IGS News and on the IGS Web site. Comments were invited from all interested persons.

Based on received comments, two Past Presidents of the IGS, Dr. J.P. Giroud and Prof. R. K. Rowe, and President of the IGS, Prof. C.J.F.P. Jones, revised the draft document.

The final version of the Code of Ethics was presented to the IGS Council during the 10 March 1997 meeting in Long Beach, California. It was unanimously approved by the Council.

This Code of Ethics is clearly a voluntary code, but reflects our wish that members of the IGS execute the mission of our society within a framework of the highest professional conduct.

http://www.geosyntheticssociety.org


Tuesday, January 12, 2010

Laboratory Accreditation Progrem for Geosynthetics

Tests performed by the geosynthetics laboratory include both standard and specialized procedures for determination of physical and engineering properties of geosynthetics. All laboratory staff receive test performance training based on American Standards for Testing Materials (ASTM), Geosynthetic Accreditation Institute (GAI). Geosynthetics laboratory must have an accredited through the Geosynthetic Accreditation Institute-Laboratory Accreditation Program (GAI-LAP).

Geotextiles:
ASTM D 5199 Thickness
ASTM D 5261 Mass per Unit Area
ASTM D 4751 Apparent Opening Size
ASTM D 4491 Permitivity
ASTM D 4632 Grab Strength
ASTM D 4533 Trapezoidal Tear Strength
ASTM D 4595 Wide Width Tensile Strength
ASTM D 4833 Puncture Strength
ASTM D 4884 Sewn Seam Strength

Geosynthetic Clay Liners:
GRI GCL1 Permeability
ASTM D 4643 Bentonite Moisture Content
USP-NF-XVII Bentonite Swell Index
ASTM D 5261 Mass per Unit Area


Geogrids:
ASTM D 4595 Wide Width Tensile
GRI GG1 Rib Tensile
GRI GG2 Junction Tensile

Geomembranes:
ASTM D 5199 Thickness
ASTM D 792 Density
ASTM D 638 Tensile Properties
ASTM D 882 "ASTM D 751
"ASTM D 4595 Wide Width Tensile Strength
ASTM D 1004 Tear Resistance
ASTM D 4833 Puncture Resistance
ASTM D 5321 Direct Shear
ASTM D 413 Seam Peel/Shear
ASTM D 751
"ASTM D 3083
"ASTM D 4437
"ASTM D 6392 "