Tag: Geomembranes

A geomembrane is very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid (or gas) migration in a human-made project, structure, or system. Geomembranes are made from relatively thin continuous polymeric sheets, but they can also be made from the impregnation of geotextiles with asphalt, elastomer or polymer sprays, or as multilayered bitumen geocomposites. Continuous polymer sheet geomembranes are, by far, the most common.

Geosynthetics for Roadway Construction

Geosynthetics for Roadway Construction

Ever since the Romans used palm fronds and other plant fiber matting to reinforce the sub-bases of their famous roads, fabrics have been used to improve road longevity and performance. Modern road construction methods rely on a family of materials called geosynthetics to achieve the same results. But these more sophisticated materials can

Preventing Water Loss in Storage Tanks

Preventing Water Loss in Storage Tanks

A 49-year-old water storage tank leaking water eventually led the town of Chapmanville, WV, to replace its 75-year old water distribution system in 2015. Eventually, it learned that the town’s distribution lines were also leaking like sieves. Together, the distribution lines and leaking storage tank were losing more than half

Preventing Loss

Preventing Loss

A 49-year-old water storage tank leaking water eventually led the town of Chapmanville, WV, to replace its 75-year old water distribution system in 2015. Eventually, it learned that the town’s distribution lines were also leaking like sieves. Together, the distribution lines and leaking storage tank were losing more than half

A Necessary Support System

A Necessary Support System

Ever since the Romans used palm fronds and other plant fiber matting to reinforce the sub-bases of their famous roads, fabrics have been used to improve road longevity and performance. Modern road construction methods rely on a family of materials called geosynthetics to achieve the same results. But these more sophisticated materials can

Agru America Expands East and West Coast Manufacturing Facilities

Agru America Expands East and West Coast Manufacturing Facilities

GEORGETOWN, SOUTH CAROLINA – October 27, 2016. Agru America’s geosynthetic products have been meeting or exceeding regulatory requirements for more than 20 years. And those two decades, marked by consistent delivery of quality geosynthetics, have made us the world’s leading manufacturer of flat die extrusion geomembranes, geonets, geocomposites and geotextiles.

Most

Water Tanks, Reservoirs, Maintenance, and Repair

Water Tanks, Reservoirs, Maintenance, and Repair

Editor’s note: This article first appeared in the January/February 2014 issue of Water Efficiency.

Rob Pearlman, senior containment systems engineer with Plymouth, NH-based AmTech Tank Lining & Tank Repair, says that water tank problems rarely boast good timing. You can actually count on the opposite, he notes.

One moment a water tank

Don’t Be a Nasty Neighbor

Don’t Be a Nasty Neighbor

“Not in my backyard” is a familiar phrase in the solid waste industry. People don’t want a landfill in their neighborhood, but it’s inevitable that these facilities are going to have some type of neighbors—whether residential, commercial, or industrial—so keeping those neighbors happy by reducing dust, odor, and noise is

Revisiting the Cover on Final Cover

In the quarter of a century since Subtitle D has been in effect, there have been many great advancements in technologies and materials, but these advancements have not really fundamentally changed our approach to solid waste disposal.

Revisiting the Cover on Final Cover

In the quarter of a century since Subtitle D has been in effect, there have been many great advancements in technologies and materials, but these advancements have not really fundamentally changed our approach to solid waste disposal.

Landfill Liners and Covers Put a Lock on Leachate

Landfill Liners and Covers Put a Lock on Leachate

There are two driving factors: the liner and the cover. How they are designed and installed, what materials are used, and how it is maintained play a significant role in achieving a high degree of assurance of environmental integrity throughout the period in which post-closure care is required.

Experts agree that

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