NAGS Announces 2nd Presentation of Its 2014 Webinar Series

Bob MackeyEvent: NAGS 2014 Webinar Series: Presentation #2
Date: Wednesday July 9, 2014, 1:00 – 2:00 pm EDT
Location: Online Webinar


NAGS is very pleased to announce the 2014 Webinar Series:Presentation #2:
“Composite Drainage Nets – Design and Testing”

Presented by:
Bob Mackey, P.E., BCEE
S2L, Incorporated
Maitland, Florida, USA

DATE: Wednesday July 9, 2014, 1:00 – 2:00 pm EST

ABSTRACT: The development of composite drainage nets (CDNs) (a.k.a. “geocomposites”) has advanced from the initial biaxial nets to tri-axial nets to the current composite drainage products of various geosynthetic materials and structures. The use of CDNs requires a fundamental knowledge of the CDN components and the specifications for those materials.

This North American Geosynthetics Society webinar will address the various design, testing and installation issues one must consider with composite drainage nets. Issues include:

  • Various CDNs and their components
  • Ply adhesion (geotextile/geonet)
  • Flow pattern considerations
  • Reduction factors
  • Creep reduction estimates and testing
  • Transmissivity testing
  • Design specifications (cap and leachate collection)
  • Installation issues
  • Construction and historical issues

ABOUT THE SPEAKER: Mr. Mackey is a civil/environmental engineer with 28+ years of experience in the solid waste management field. Bob is currently president of the North American Geosynthetic Society and Chairman of the ASTM International Committee D35on Geosynthetics. Mr. Mackey is an adjunct professor at the University of Central Florida, former co-instructor for the ASCE continuing education course “Design of Waste Containment Liner and Closure Systems,” and a member of ASCE’s Body of Knowledge Committee, 2nd Edition. Bob has received ASTM’s Award of Merit (the association’s highest award), and he has been honored with the designation of Fellow by ASTM, ASCE and the Florida Engineering Society.

$100 – Presentation #2 MEMBER Fee: NAGS / CGS / IGS
$300 – Presentation #2 NON-MEMBER Fee ( Save money and become a member of NAGS today! )
$25 – Presentation #2 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.


NOTES: All fees are in USD. Why not join NAGS for $75 USD? Please see for details.

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