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Posted on 4/13/2016

For over 25 years, Keystone Retaining Wall Systems has set the worldwide standard in soil retention, erosion control and landscape systems. By working with the finest network of manufacturers, product developers, engineers and sales professionals in the business; Keystone ensures that its products and services offer the best site solutions for any application.

Architects, engineers and contractors around the world rely on Keystone’s industry leading product performance and aesthetics to fulfill the unique requirements of their projects. The Keystone difference lies in its outer beauty and inner strength. Keystone’s interlocking fiberglass pin system ensures a positive connection from wall unit to wall unit, and between wall un...

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NEW: concrete retaining wall by Contech

Posted on 3/29/2016

EnviroGrid is a unique structure consisting of strips of High Density Polyethylene (HDPE) welded together forming individual honeycomb-shaped cells. It is available in 3 different cell sizes (EGA20, EGA30, & EGA40) along with various cell heights (3”, 4”, 6” & 8”). EnviroGrid can be filled with various aggregates, concrete, and even native soils that can be vegetated.

Benefits of the EnviroGrid Cellular Confinement System: Reduce Fill Required – With the use of EnviroGrid, fill quantity can be reduced by up to 70% while maintaining or improving bearing capacity. This saves time, transport, and material costs. Eliminate Rutting – Prevent the lateral movement of infill. Lower quality fill materials can often be used since they are con...

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NEW: geocell / for erosion control by Contech

Posted on 1/14/2016

The technology of using a nonwoven geotextile as a concrete pavement interlayer has been widely proven in Europe for over 30 years. In 2006, this technology reemerged in the US due to the efforts of FHWA and several State DOTs. The technology improves the quality of Portland cement concrete (PCC) pavements and greatly lowers their costs.

There are two basic applications for a concrete interlayer geotextile; 1) between existing PCC, asphalt concrete, or composite pavements and a new PCC overlay; and 2) between a treated base or subgrade and a new PCC slab. Traditionally, a hot mix asphalt concrete (HMA) layer was employed and the functions of the interlayer are as follow: To provide a degree of disbondin...

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NEW: non-woven geotextile by Contech

Posted on 10/22/2014

Available in galvanized steel, Aluminized Steel Type 2, polymer coated and aluminum to meet a wide variety of environmental and service life requirements. For projects with limited headroom, ULTRA FLO is available in pipe-arch. Millions of feet of ULTRA FLO have been installed in thousands of storm sewer projects nationwide, providing significant cost savings. Becau...

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Aluminium pipes for storm sewer projects

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