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Embankment reinforcement using 1750 kN/m strength geogrids

June 1, 2023  |  Features, News

In 2015, a variant road was built to relieve urban traffic in the southeastern section of federal road BR 101, more precisely in Florianopolis, which is the capital city of Santa Catarina, Brazil. With a length of 4,828 km (3,000 miles), BR-101 is a major Brazilian highway that runs the length of Br…
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Motorway underpass using geomembranes as a groundwater barrier

April 1, 2023  |  Features

In some places in the Netherlands, there is an absence of natural clay so groundwater flushes easily through the soil. As soon as excavation starts, groundwater will be present. Groundwater must be removed or taken care of to build roads, tunnels, etc. in dry conditions. This article describes a tec…
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GCL and geosynthetic membrane installation for mining site

April 1, 2023  |  Features

Nestled in the Midas Trench lineament on the northwest side of the Humboldt Range, numerous mines take full advantage of their proximity to the basin and ridge frontal faults that serve as conduits for gold-bearing hydrothermal fluids. In 2020, CETCO was contacted by a mine in this region to assist …
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Vegetated long-term solution for fly ash landfill capping project

February 1, 2023  |  Features

In 2019, a coal-fired power plant in Illinois was scheduled to be retired. The decision to close the plant was made to address the recently approved revisions to the Multi-Pollutant Standards rule from the Illinois Pollution Control Board.
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Innovative solution for ballast fouling

February 1, 2023  |  Features

Remy Steffer, director of engineering at the Port of Texas City, Texas City Terminal Railway Company, and Houston Belt and Terminal Railway, is very familiar with ballast fouling. Overseeing operations at a port facility south of Houston, Texas, Steffer has dealt with ballast fouling his entire care…
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Premier Product Showcase 2023

February 1, 2023  |  Features

Here is your first look at some of the new products and services that will be available from companies in 2023.
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Wick drain installation considerations

October 1, 2022  |  Features

Wick drains are one of the most common and cost-efficient ground improvement techniques for soft fine-grained soils. Over the years, there has been substantial development on wick drain design methods; however, construction considerations may have not been sufficiently considered during the design p…
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Geomembrane destructive testing

October 1, 2022  |  Features

For almost 40 years, the generally accepted destructive test rate for geomembrane seaming has been one sample for every 500 feet (152 m) of seam. On large projects this leads to hundreds of holes cut into liners that engineers, manufacturers and installers work very hard to make leak proof. With a t…
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Drainage geocomposites and PVC geomembranes for highway tunnel lining

October 1, 2022  |  Features

The original design for the primary lining system for the Driskos Twin Tunnel along the Egnatia motorway in Greece, consisting of a PVC plasticized (PVC-P) geomembrane, called for a nonwoven geotextile, 500 g/m², as a puncture protection and drainage layer.
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Geosynthetics in green roofs

August 1, 2022  |  Features

To talk about geosynthetics on green rooftops is to talk about an opportunity to change and make an environmental improvement in the world. The growing need to create awareness of an ecological responsibility and the environment has allowed this concept to spread more successfully.
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