Geocomp introduces bi-directional shear testing machine

August 24, 2018  |  Features

Geocomp announced in August it has released an addition to the company’s series of fully-automated laboratory soil testing systems: a Bi-Directional Cyclic Direct Simple Shear (BDCDSS) machine. This table-top unit allows simple shear testing to be performed in two orthogonal horizontal directions …
Geocomposite lamination strength ASTM test method: Time for an update

August 1, 2018  |  Features

Recent project experience that included continuous peel testing across the roll width of geocomposite materials has shed light on the issue of peel strength between geotextiles and geonets that are heat-bonded together. The variability of peel strength across a roll width is found to be much greater…
Case studies using EPS geofoam for mining and energy

August 1, 2018  |  Features

The complexities of the built environment continually challenge the limits of engineering and construction. For infrastructure built-in areas with settlement-prone soils or other hazardous geological conditions, assembling a team of experts to plan for challenges is essential. Industries like mining…
Deploying a geosynthetic mattress ballast layer at an ore-processing site

August 1, 2018  |  Features

New applications of geosynthetics are being found that form from overlaps of existing functions, such as protection, separation, filtration and drainage. One new geosynthetic product, the geosynthetic mattress ballast layer (GBL), was first implemented for an ore-processing waste facility protection…
Testing a new method for mining-waste storage using polymer-enhanced geosynthetic clay liners

July 31, 2018  |  Features

Geosynthetic clay liners (GCL) and polymer-modified geosynthetic clay liners (PMG) are gaining favor for use in industrial waste disposal and ore-processing applications (Athanassopoulos et al. 2015, Donovan et al. 2016a, Donovan et al. 2016b). The GCL or PMG can be a component of a composite liner …
GEOKON certified to ISO 9001:2015

June 14, 2018  |  Features

GEOKON Inc., a manufacturer of geotechnical and structural instrumentation, announced in a prepared statement on June 13, 2018, that they have been certified under ISO 9001:2015 from both the American National Standards Institute (ANSI)/ANSI-ASQ National Accreditation Board (ANAB) in the U.S. and th…
Monitoring the performance of Louisiana’s first GRS–IBS bridge

June 1, 2018  |  Features

Over the decades, soil mass reinforced by layers of geosynthetics has been used widely and successfully in a variety of earth structures, such as mechanically stabilized earth (MSE) retaining walls, embankments, slopes and shallow foundations. Due to the proven benefits of geosynthetic reinforced so…
Springtime failure of a cold-climate geotextile riprap slope

June 1, 2018  |  Features

Geotextiles play an essential role in geotechnical projects. A significant use for geotextiles is as a separator and filter in drainage and erosion control applications (Holtz 2002). A temporary erosion control application geotextile, such as silt fencing, is used to prevent soil erosion by containi…
Highway deep-patch geogrid applications

June 1, 2018  |  Features

Deep patch is a repair technique that has been widely used on low-volume roads in the Pacific Northwest as a cost-effective mitigation technique to address settlement and shallow landsliding of side-cast embankment fill slopes and natural slopes consisting of weak soils overlying stronger soils (Cue…
A next-gen basin liner solution for the U.S. Army Corps of Engineers

April 1, 2018  |  Features

There are more than 100,000 miles (> 160,000 km) of levees throughout the United States, protecting lives and property from extreme weather-related flooding. Aging infrastructure and increasingly stronger storms have intensified the need to reinforce and protect levees, and emergency responders n…