The North American Chapter of the
International Geosynthetics Society

Category

webinar

IGS-NA Announces a New Webinar: Understanding the Role of Minimum Average Roll Values (MARV) in Geosynthetic Specifications

wufooform-logo-igs-naIGS North America Presents
WEBINAR: Understanding the Role of Minimum Average Roll Values (MARV) in Geosynthetic Specifications
Presented by Beth Wilbanks
Tuesday, December 19, 2017 | 1:00 – 2:00pm EST

Registration Cost: $20.00
FREE for IGS-NA Members!
Earn 1 PDH

REGISTER TODAY

Understanding minimum average roll value (MARV) is essential in ensuring data supports product requirements reported by the manufacturer. There appears to be confusion in the geosynthetic industry concerning the application and definition of product requirements particularly as they relate to MARV. MARV is a statistical value and not a ‘minimum’ number. The interpretation of these values has become an issue and actual data may not support a calculated MARV that meets or exceeds the published MARV.

Attendees will learn about:

  • The statistical approach used to determine MARV
  • Current methods of calculation for MARV as compared to the statistical approach based on process performance
  • Additional guidance including ASTM test methods will be discussed to provide an organized approach to sampling, testing and management of test data and certifications

 
Participants will earn 1 PDH at the conclusion of this webinar.

Presenter Bio: Beth Wilbanks has been with TenCate Geosynthetics for approximately 20 years. During most of that time she led the Quality department and was instrumental in achieving ISO 17025 laboratory and ISO 9001 quality management accreditation. Her current role at TenCate Geosynthetics is Director of Product Management role. She is actively involved in ASTM Committee D35 on Geosynthetics and was recently recognized for her efforts in the development of D8102 Practice for Manufacturing Quality Control of Geotextiles. She continues to work in the quality area and has coauthored and presented a paper on the MARV topic and its impact on the geosynthetics industry.

DOWNLOAD FLYER (PDF)

Please send all questions to info@IGS-NA.org or call +1 561 768 9489.

IGS-NA ELL Webinar Series – Episode 1: Overview of Electrical Leak Location (ELL) Methods and Their Application

igs-na-webinar-ell-fieldimgsIGS North America Presents:
Electrical Leak Location Webinar Series

Episode 1: Overview of Electrical Leak Location (ELL) Methods and Their Application
Presented by Abigail Gilson, M.S., P.E.

Date: Tuesday, November 21, 2017 @ 1:00 – 2:00pm EST
Registration Cost: FREE
EARN 1 PDH
Presenter: Abigail Gilson, Director of TRI Environmental’s Liner Integrity Services | ABeck@TRI-ENV.com | +1 512 623 0511

REGISTER TODAY

Overview of Electrical Leak Location (ELL) Methods and Their Application

All geomembrane-lined containment facilities should be tested for leaks before going into service. Early detection of leaks allows for swift and effective repair pre-service, protecting the engineer, contractor, owner and in many cases the environment. There are a variety of different methods available for electrical leak location. Choosing and specifying the most appropriate method requires an understanding of the technologies available: their benefits and limitations. In many applications an ELL method must be specified in the design phase, before construction starts, to ensure a successful test.

This presentation identifies the various common ELL technologies and identifies criteria which should be considered when specifying electrical leak location (ELL) methodology. Earn 1 PDH at the conclusion of the first webinar.

DOWNLOAD EVENT PDF

Attendees will learn about:

  • The ELL methods for exposed geomembranes and the applicable ASTM standard practices
  • The ELL methods for soil and/or water-covered geomembranes and the applicable ASTM standard practices
  • The advantages and limitations of each method
  • How to choose a method based on site conditions and engineering objectives

 

igs-na-webinar-ell-abigail-gilsonPresenter Bio: Abigail Gilson, M.S., P.E., is the Director of TRI Environmental’s Liner Integrity Services. She has a wealth of experience in geomembrane-lined containment facility design and construction and has performed electrical leak location surveys since 2004. As a graduate of TRI’s inaugural liner integrity class in 2003, her electrical leak location field experience has exceeded 100 projects and 110 million square feet. She has written and presented papers to industry conferences and taught short courses worldwide regarding the technical aspects of liner integrity and leak location surveys.

Ms. Gilson’s expertise is available for providing equipment, field training, classroom education, instructional presentations, engineering consulting, and liner integrity survey execution. She has trained staff in all of TRI’s office locations to provide local assistance on survey projects.

NAGS Announces 3rd Presentation of Its 2014 Webinar Series

RJonathanFanninEvent: NAGS 2014 Webinar Series: Presentation #3
Date: Wednesday, October 8, 2014, 1-2 pm EDT
Location: Online Webinar
REGISTRATION NOW OPEN (Registration Closes October 7th, 2014)

REGISTER HERE

NAGS is very pleased to announce the 2014 Webinar Series:Presentation #3:
“Geofilters”

Presented by:
R. Jonathan Fannin, Ph.D., P. Eng.
University of British Columbia
Vancouver, Canada;

DATE: Wednesday October 8, 2014, 1:00 – 2:00 pm EST

ABSTRACT: The origins of current design practice for a granular filter are first examined, along with some of the lessons learned over the years from construction of very large embankment dams, including the WAC Bennett dam in British Columbia. The origins of current design practice for a geotextile filter are then examined, in conjunction with some of the lessons learned from their use in earthworks, including the rehabilitation of the Alouette dam spillway in British Columbia. The evidence to-date suggests that both sand-gravel filters and geosynthetic filters have generally performed well at controlling seepage flow in earthwork applications for many years. However there have also been problems reported, both for granular filters and for geotextile filters. This lecture draws upon industry-university research on the sinkhole incident at the WAC Bennett dam in British Columbia, and industry-university research on the filter compatibility of geotextiles in unidirectional and reversing flow, to understand better the significance of issues affecting the performance of geofilters in earthworks. The merits of mandating the use of a geosynthetic filter as an adjunct to a granular filter, in critical infrastructure, are then considered within the context of risk management.

ABOUT THE SPEAKER: Jonathan Fannin obtained a B.Sc. (Civil Engineering) from the Queen’s University of Belfast, and a D. Phil. (Geotechnical Engineering) from the University of Oxford for studies on geosynthetics for soil stabilization. He is a recipient of several awards, including an IGS Award for contributions of laboratory and field research to engineering practice, a CGS Quigley Award for the best paper in the Canadian Geotechnical Journal, a Karl Terzaghi Fellowship from the Norwegian Geotechnical Institute and most recently, a Distinguished Visiting Fellow award from the U.K. Royal Academy of Engineering. Jonathan has provided specialist technical advice on a number of dam projects in North and South America and, in 2013, was made a Fellow of the Engineering Institute of Canada in 2013.

PRESENTATION #3 REGISTRATION FEE:
$100 – Presentation #3 MEMBER Fee: NAGS / CGS / IGS
$300 – Presentation #3 NON-MEMBER Fee ( Save money and become a member of NAGS today! )
$25 – Presentation #3 NAGS Student Member Rate ( Students may apply to NAGS at no charge for membership! )

PDHs: Professional development credit will be available for each participant paying a registration fee.

GROUPS: Small groups of up to five people are welcome to participate for one registration fee. Groups larger than five must pay a second registration fee.

REGISTRATION NOW OPEN (Registration Closes October 7th, 2014)

REGISTER HERE

NOTES: All fees are in USD. Why not join NAGS for $75 USD? Please see www.nags-igs.org for details.

cgs_logo
Co-sponsored by the Geosynthetics Division of the Canadian Geotechnical Society (CGS)

NAGS – Providing leadership in advancing the education and research of geosynthetics

NAGS Announces 1st Presentation of Its 2014 Webinar Series

rowe_picEvent: NAGS 2014 Webinar Series: Presentation #1
Date: Wednesday March 19, 2014, 1 – 2 pm EDT
Location: Online Webinar

REGISTER HERE

NAGS is very pleased to announce the 2014 Webinar Series:Presentation #1:
“Recent insights on the performance of GCLs in bottom liners and covers”

Presented by:
R. Kerry Rowe
GeoEngineering Centre at Queen’s-RMC
Queen’s University, Kingston, Canada

DATE: Wednesday March 19, 2014, 1-2 pm EST

ABSTRACT: The available evidence suggests that both geosynthetic clay liners (GCLs) and composite liners with a geomembrane (GMB) over a clay liner have performed extremely well at controlling leakage in field applications for a couple of decades. However there have also been some problems reported and recent research has allowed us to have a much better understanding of the key design and construction factors affecting good and poor performance. This lecture examines some of these issues affecting GCL performance such as the water retention curve of GCLs, subgrade grain size and initial water content, GCL water content and normal stress on the GCL, the effect of daily thermal cycles on hydration, GCL panel shrinkage, and cation exchange. Factors affecting composite liner performance examined include the potential for desiccation of the clay liner under a sustained thermal gradient, GMB/GCL interface transmissivity, wrinkles in the GMB when the ballast layer is placed over the composite liner, and the potential interaction between wrinkles and GCL panel overlaps. Recent insights regarding leakage through composite liners are discussed. Although a number of potential issues with liner performance are discussed, it is concluded that all can be addressed by appropriate design, material selection, construction, and operation.

ABOUT THE SPEAKER: Professor Rowe holds the Canada Research Chair in Geotechnical and Geoenvironmental Engineering at Queen’s University. He is an author of 300 journal papers, 3 books, 18 book chapters, and 290 full conference papers. He has presented many prestigious lectures including the Giroud Lecture (2002), Rankine Lecture (2005), and Casagrande Lecture (2011). He is a fellow of the Royal Society of Canada, the Canadian Academy of Engineering, the Royal Academy of Engineering and The Royal Society. He is past president of the International Geosynthetics Society, Canadian Geotechnical Society, and Engineering Institute of Canada.

PRESENTATION #1 REGISTRATION FEE:
$100 – Presentation #1 MEMBER Fee: NAGS / CGS / IGS
$300 – Presentation #1 NON-MEMBER Fee ( Save money and become a member of NAGS today! )
$25 – Presentation #1 NAGS Student Member Rate ( Students may apply to NAGS at no charge for membership! )

PDHs: Professional development credit will be available for each participant paying a registration fee.

GROUPS: Small groups of up to five people are welcome to participate for one registration fee.
Groups larger than five would be required to pay a second registration fee.

NOTES: All fees are in USD. Why not join NAGS for $75 USD? Please see www.nags-igs.org for details.

cgs_logo
Co-sponsored by the Geosynthetics Division of the Canadian Geotechnical Society (CGS)

NAGS – Providing leadership in advancing the education and research of geosynthetics