Geosynthetic
Institute
The GMA Techline*
https://geosyntheticsmagazine.com/qa-gma-techline
Direct answers for your technical questions.
This applies to everyone (GSI members or not) and to anyone
in the world.
Go ahead; try it out!
*This
service is provided by Dr. George R. Koerner.
The responses are offered to the best of his
knowledge
but do not come with any guarantee (direct or implied) whatsoever.