JOURNAL ARTICLES

Massive Mining Evaporation Ponds Constructed in Chilean Desert Massive Mining Evaporation Ponds Constructed in Chilean Desert

3/1/2007

Dominic Berube, Patrick Diebel, Andre Rollin, and Timothy D. Stark

Geosynthetics Magazine

The Salar de Atacama in Chile is the site of the largest PVC geomembrane installation in the world - more than 16 million sf. utilized in mining operations since 1996.

Saving Prospect Lake Saving Prospect Lake

1/1/2006

Geosynthetics Magazine Volume 24, No. 1

The use of PVC geomembrane facilitates the saving of Prospect Lake since problematic lakebed soils did not have to be disturbed to accommodate the liner. This is the largest US PVC geomembrane installation to date and is a great example of a PVC geomembrane success.

Air-channel testing landfill geomembrane seams Air-channel testing landfill geomembrane seams

3/1/2005

T.D. Stark, Ph.D, P.E, J. Heap, S. Lange, D. McLaury, S. Slifer

GRF March 2005 volume 23 number 2

An extreme test Year 10 An extreme test Year 10

1/1/2005

F. Konvalinka

GFR 2005 Volume 23, Number 8

10 years ago, the founders of the PVC geomembrane institute were determined to test materials in field use. They partnered with the Minnesota Department of Natural Resources

Influence of plasticizer molecular weight on plasticizer retention in PVC geomembranes Influence of plasticizer molecular weight on plasticizer retention in PVC geomembranes

10/31/2004

T. D. Stark, H. Choi and P. W. Diebel

Plasticizers can migrate from PVC geomembranes over time because of contact with air, liquid, and/or an absorbent solid material. Plasticizer migration can reduce the flexibility of PVC geomembranes, resulting in brittle behavior. This paper discusses the three mechanisms of plasticizer migration and the factors influencing these mechanisms, such as plasticizer molecular weight and linearity of the plasticizer.

PLASTICIZER MOLECULAR WEIGHT AND PLASTICIZER RETENTION IN PVC GEOMEMBRANES PLASTICIZER MOLECULAR WEIGHT AND PLASTICIZER RETENTION IN PVC GEOMEMBRANES

10/26/2004

T. D. Stark, Ph. D, P.E, H. Choi and P.W Diebel

57TH CANADIAN GEOTECHNICAL CONFERENCE

This paper discusses the three mechanisms of plasticizer migration and the factors influencing these mechanisms, such as plasticizer molecular weight and linearity of plasticizers. The paper recommends that a minimum average plasticizer molecular weight of 400 be used to ensure long-term plasticizer retention in the field.