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I-CORP INTERNATIONAL is a completely independent international geosynthetic materials performance consulting and testing company. Dr Ian D. Peggs, President, is a materials scientist/engineer with over 25 years experience working with engineering plastics; welding, durability, stress cracking, nondestructive testing, microstructure, residual stress, leak surveys, failure analyses, and expert witness work. I-CORP has clients in over 40 countries. We help resolve materials performance problems.

Dipole Survey

Geomembrane CQA: When Should a Liner Integrity Survey Be Performed?

Geosynthetica has reached a major milestone: its 20th anniversary of delivering geosynthetics stories! In internet years, that’s a long, long time. The publication was founded by Dr. Ian D....

Story of a Photo: Geomembrane Integrity Survey from a Crane

While nosing around in Geosynthetica's archives, we happened upon an interesting photo (dated 2004) of Ian Peggs conducting a liner integrity survey while suspended from a crane. Though liner integrity surveys are common, the conditions in which they must be conducted vary wildly. We asked Dr. Peggs if he might offer a few notes about this particular situation. Here's what he shared with us. Read more.
Photo of whales (bubbles) in a geomembrane liner

Preventing HDPE Geomembrane Whales – A Primer

Following news that Ian Peggs, founder of Geosynthetica, is retiring from I-CORP International (though not retiring completely from geosynthetics), we thought we'd look back on some of his most...
Photo of Ian Peggs Receiving IGS Recognition

Geosynthetica Founder Ian Peggs Retires from I-CORP

After 40+ years of geosynthetic materials performance consulting work, Dr. Ian D. Peggs has made a strategic decision to close I-CORP INTERNATIONAL, Inc. for the foreseeable future and to...

Graphene and the Next Generation of Geosynthetics

By Ian D. Peggs – Geosynthetic materials and products continue their steady development, as additive packages and manufacturing technologies evolve. Today, however, is different. Today, we are truly...

SURVEY: Extra-Wide Geomembranes

I-CORP International’s Dr. Ian D. Peggs, P.E., P.Eng has shared a survey on extra-wide geomembranes. Your participation is invited. Responses are sought from manufacturers, distributors, installers, construction/contracting...

Geoelectric Liner Survey Equipment and Expertise in Australia

After performing geoelectric liner leak location and integrity surveys worldwide since about 1985 and teaching others how to do so since 2004, Dr. Ian D. Peggs, P.E.,...
Slideshow of Whales - Geomembranes

A Primer for Preventing HDPE Geomembrane Whales

By Ian D. Peggs, Ph.D., P.E., P.Eng  – There continue to be failures of HDPE geomembrane lining systems in waste water treatment plant (WWTP) lagoons and farm manure ponds....
Anaerobic Digester Designs: Critical Issues to Avoid Whales

Avoiding Whales in Anaerobic Digesters

By Ian D. Peggs – In 2014, shortly after being placed in service, one of two geomembrane-lined and covered anaerobic digesters generated extensive whales—“bubbles” in the lining system. Attempts to...
Ian Peggs, Australia

10 Geomembrane Questions

Questioning the practice of engineering has long been part of the geosynthetics field. It is this on-going dialogue and re-evaluation that leads to new manufacturing innovations, better CQA, more...
I-CORP International - 25 Years of Consulting in Geosynthetics

I-CORP Marks 25 Years of Geosynthetics Consulting

By Ian D. Peggs – On 21 March 2016, I-CORP will celebrate 25 years of geosynthetics consulting, with particular emphasis on geomembranes, pipes, and other engineered plastic...

Latest Articles

GeoAsia 7 Announces Calendar Move to November 2021

The 7th Asian Regional Conference on Geosynthetics, GeoAsia 7, has proactively moved its dates from March to 22 – 26 November 2021. Conference chair,...