Tag: clay soils

Clay is a fine-grained natural rock or soil material that combines one or more clay minerals with traces of metal oxides and organic matter. Clays are plastic due to their water content and become hard, brittle and non–plastic upon drying or firing.

Improving the Soil

Improving the Soil

In revegetation, everything begins with the soil—usually poor soil.

Soils may become degraded during the construction of buildings, roadside projects, or mining or landfill operations, or because of overgrazing or deforestation. They lose their topsoil, usually the top 2- to 8-inch layer of the soil, where the most important nutrients lie.

Growing Pains

Growing Pains

Known for its involvement with banking and auto racing, Charlotte is one of the 10 fastest-growing cities in the US. The city’s 2014 estimated population is nearly 810,000.

Underground Detective Work

Underground Detective Work

There are approximately 100 billion feet, or 20 million miles, of underground utilities in this country, estimates Eric Huber, senior product manager at RIDGID. And every six minutes, a line is damaged.

Issues With Clay? No Way!

Issues With Clay? No Way!

This article discusses a novel approach of using a sand lens to convey the stored volume of runoff gradually into the deeper layers of the soil, or to the water table, to overcome some of the design challenges resulting from clayey soils.

Improving the Soil

Improving the Soil

In revegetation, everything begins with the soil . . . usually poor soil.

Soils may become degraded during the construction of buildings, roadside projects, or mining or landfill operations, or because of overgrazing or deforestation. They lose their topsoil, usually the top 2- to 8-inch layer of the soil, where the

Retaining Walls: The Inside Story – Part 1

Retaining Walls: The Inside Story – Part 1

Retaining walls are typically built to stabilize an unstable or eroding slope, or to create more usable level land. Numerous options are available in terms of wall type, size, strength, and appearance. Two keys to avoiding retaining wall failure are proper soil stabilization and proper drainage behind …

Landfill Liners and Covers

Landfill Liners and Covers

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.

Editor’s Comments: Working From the Inside

Several months ago, not long after the StormCon conference in ­Portland, OR, I wrote about the discrepancy in how stormwater is regulated for urban areas and construction sites versus agricultural lands. The Clean Water Act essentially exempts most agricultural operations, and this has been a topic of discussion at StormCon—and

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