Digest a summary of the discussions and learnings gained from the IGS Technical Committee on Barrier Systems (TC-B) workshop held at last year's 12^th International Conference on Geosynthetics (ICG).

The report summarizes presentations made by a range of experts during the workshop held on September 20, and covers insights into Geosynthetic Barrier Quality Assurance, Quality Control, and Installation.

The recap includes an update by TC-B chair Jonathan Shamrock on the activities of the Committee since the last ICG in Seoul, South Korea, in 2018, and future planned events. This is followed by summaries on the following talks:

• Boyd Ramsey, of Boyd Ramsey Consulting – 'To do and not to do during geomembrane installation', which outlines suggested basic steps for successful barrier installation.
• Todd Harman, of Hallaton Environmental Linings – an introduction and update on the International Association of Geosynthetic Installers, of which Mr Harman is President.
• Bruno Herlin, of Terrafix Geosynthetics – 'Using the appropriate GCL based on the working conditions/application'.
• Samuel Allen, of TRI Environmental and IGS President – 'Importance and suggestions for QC and QA of geomembranes and GCLs'
• George Koerner – 'Interpretation of geosynthetic barriers test results during QA' where Dr. Koerner, from the Geosynthetic Institute (GSI), presents on the differences between Material Quality Control (MQC) and Construction Quality Assurance (CQA).
• The outcome of a panel discussion facilitated by Amir Shahkolahi, TC-B secretary, on current HDPE geomembrane dual track fusion weld welding standards. Panelists were Eddie Weiser (Leister), Bruno Herlin (Terrafix), Boyd Ramsey (Boyd Ramsey Consulting), Todd Harman (Hallaton Environmental Linings), Jonathan Shamrock (Tonkin + Taylor), Samuel Allen (TRI), George Koerner (GSI) and Kent von Maubeuge (Naue).

Read the full report here.

During the event, the TC-B held a separate moment of appreciation for two special individuals, Kent von Maubeuge and Boyd Ramsey, former chair and vice chair of the committee.

Learn more about the IGS's Technical Committees here.