Large-scale studies to evaluate the resilient modulus of geocell-reinforced pavement
April 1st, 2019
The 2017 ASCE report card (ASCE 2017) on civil infrastructure assigned grade “D” for America’s roads, and this rating necessitates the adoption of more sustainable and resilient approaches in design and construction of transport infrastructures such as highway embankments and pavements. Reclaimed asphalt pavement (RAP) material has been considered as one of the sustainable options […]
The GMA Techline
April 1st, 2019
Vegetation causing gases under geomembrane? Q: I have a site where we are installing a high-density polyethylene (HDPE) liner in an existing pond. Because of some residual heavy metals in the top layer of soil, I would like to strip off the top 3–6 inches (7.6–15.2 cm) of soil and vegetation. Alternatively, we could mow and […]
Plastatech unveils line of prefabricated geomembrane accessories
March 26th, 2019
Plastatech Engineering launched a new line of prefabricated accessories, featuring product styles such as a straight pipe boot, angled pipe boot, inside corner, outside corner and other customizable options. Designed to provide time-saving solutions for a variety of geomembrane projects, accessories are available in polyvinyl chloride (PVC), high-density polyethylene (HDPE), reinforced polyethylene (RPE), linear low-density […]
Solmax introduces RockArmour geomembrane for oil and gas pipeline protection
March 25th, 2019
Solmax has partnered with Rock Armour LLC to introduce an innovative rockshield pipeline protection offering to the oil and gas industry. RockArmour is a conductive geomembrane material designed to shield pipelines from rock impact damage during backfilling and problems caused by land movement after pipeline installation. “Solmax has a long-standing relationship with Rock Armour LLC and we […]
A leachate pond geomembrane after 25 years of service
February 1st, 2019
This article reports on the evaluation of an exposed geomembrane liner in a landfill leachate pond after being in service for 25 years. The evaluation was performed in two campaigns: in August 2014 and in May 2018. The purpose of the evaluation was to determine the condition of the geomembrane and to provide a recommendation […]
Layfield launches gas barrier geomembrane
January 14th, 2019
Layfield Geosynthetics announced the release of VaporFlex® Premium geomembrane. VaporFlex® Premium is a 7-layer coextruded geomembrane barrier with an ethylene vinyl alcohol (EVOH) core layer. This high-performance geomembrane is specifically designed to provide an ultra-low permeability gas barrier in a broad range of geoenvironmental applications. When compared to high-density polyethylene (HDPE), the VaporFlex® Premium was […]
GSI to host short course on QA/QC in waste containment, GMA members get discounted rates
December 20th, 2018
The Geosynthetic Institute (GSI) will sponsor a short course “Quality Assurance/Quality Control of Geosynthetics in Waste Containment Facilities,” Jan. 14–16, 2019, from 11 a.m. to 12:30 p.m. and 2 p.m. to 3:30 pm EST. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. This […]
GSI to host webinar on pond liners, GMA members get discounted rates
December 18th, 2018
The Geosynthetic Institute (GSI) will sponsor a webinar “Pond Liner Design and Performance,” on Jan. 10, 2019, from 11:30 a.m. to 1 p.m. EDT. GMA member companies and their employees receive discounted rates on all GSI webinar and short course registrations. The first ponds lined with geomembranes were installed in the 1930s. That said, the […]
EPT introduces new string-reinforced LLDPE geomembrane
December 13th, 2018
To meet the growing demand for linear low density polyethylene (LLDPE) by geomembrane fabricators and installers, Engineered Polymer Technologies (EPT) has announced a new string-reinforced LLDPE fabric. LLDPE has been in increasing demand due to its superior flexibility and better layflat versus high density polyethylene (HDPE). EPT has specially formulated its LLDPE fabric for high […]
SGS and Cipatex release new PVC geomembranes
December 3rd, 2018
Southern Geosynthetics Supplies Pty. Ltd (SGS) is now offering new Cipatex DG and Hipertech R geomembranes. Cipatex and SGS collaborated on the development of the new DG200 which is a 0.8mm PVC geomembrane bonded on either side with 200 gsm nonwoven geotextile. The composite material provides a geomembrane with extraordinary puncture and tear resistance, as well […]