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Presto Geosystems; Geocell 3D Protection Soil Stabilisation Solutions for Roads and Highways

Presto Geosystems’ GEOWEB geocells offer a high-quality construction solution to address challenging soil and water issues in the civil, industrial, and stormwater industries.

We aim to deliver structurally-stable design solutions while reducing project costs and providing significant environmental benefits.  Presto offers a free project evaluation service to their clients.

Soil stabilisation solutions for road applications

The GEOWEB 3D soil confinement system enables clients to develop flexible designs for base stabilisation, road shoulders, unpaved road surfaces, and erosion protection for embankments and stormwater drainage channels.

In comparison to geogrids, the system’s 3D structure offers enhanced road base strength for asphalt and concrete pavements while reducing cost and construction time.

Slope and channel designs include sustainable vegetation, permeable aggregate, hard-armored concrete for erosion control and stormwater/wastewater conveyance and containment.

High-performance road-base stabilisation design

The GEOWEB 3D system minimises rutting, potholes, and pavement degradation by stabilising the base layer under asphalt or concrete.

Performing as a semi-rigid beam, the solution distributes loads over soft sub-base soils to decrease deflection and settlement with 50% less cross-section.

The positive effect on the pavement base layer is that it reduces maintenance requirements, costs and paving depths, and extends pavement life.

Slope stabilisation for erosion-resistant roadway embankments

The GEOWEB 3D system provides erosion-resistance to stormwater runoff, sheet flow and seepage on roadway slopes and bridge abutments.

Depending on the steepness, the system can be designed as a single-layer slope stabilisation method or multi-layered retaining walls.

Single-layered protection systems are suitable for topsoil / vegetation, permeable aggregate or concrete – providing protection that is not possible with erosion blankets or turf reinforcement mats.  Infill confined in the GEOWEB 3D structure allows a smaller, less expensive rock size.  With concrete infill, the system is flexible – and more economical than articulated concrete blocks (ACBs).

Gravity or reinforced retaining walls designed with GEOWEB mechanically stabilised earth (MSE) systems provide both green aesthetics and an effective structural solution for steep roadway embankment protection.

Unpaved road and pavement surface reinforcement

The GEOWEB 3D system literally transforms fill–enabling unpaved road construction over soft soils with low-quality, low-cost fill—even sand.  The system allows access over soft soils where other reinforcement may require deeper, higher-priced base materials.  The confined surface material remains stable even under repeated, heavy loading.

In most cases, the system can reduce base requirements of 50% or more and allow the use of on-site fill.

With open-graded aggregate fill, unpaved GEOWEB pavements are permeable pavements – allowing stormwater infiltration and at a lower cost than pervious concrete and porous asphalt.  GEOWEB porous pavements can also perform as an onsite retention ‘basin’, storing stormwater for natural infiltration.

Structural road-shoulder stabilisation

The gravel-infilled GEOWEB system removes low and soft road-shoulder issues such as erosion areas and rutting to ensure drivable functionality.

The system creates stable shoulders that reduce maintenance by up to threefold, and protect sealed pavements from deterioration and edge breaks.

Custom-designed GEOWEB shoulders with permeable aggregate or engineered topsoil / aggregate infill for strong grassed shoulders also decrease stormwater runoff.

Geocell reinforced concrete for high-quality surfaces

GEOWEB geocell reinforced concrete (GRC) pavements combine articulating permeable pavers with hard-armoured concrete slabs. They feature a reduced cross-section, which offers cost savings between 15% and 25%.

The integral GEOWEB 3D confinement structure eliminates the need for formwork and reinforcement, assures uniform concrete depth, controls pavement cracking, and helps manage surface water runoff.

Pavement thickness reduction

Engineers incorporate the GEOWEB system to improve the structural strength of the pavement base layer and reduce the cross-section.

The GEOWEB structure creates a reinforced base layer and enhanced base strength that reduces the pavement depth, depending on the design.

Roadway stormwater control for ditches

Stormwater swales and drainage ditches designed with the GEOWEB system can replace expensive large rock (rip rap) with lower cost, smaller aggregate or lower-maintenance vegetation.

The system’s roadside ditch protection is effective in continuous low-flow and intermittent high-flow channels.

In addition, GEOWEB vegetated channels can withstand velocities of up to 30ft/s (9m/s) with overlying turf reinforcement mats (TRMs).

 

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White Papers

GEOWEB vs Geogrids for Unpaved Roads

GEOWEB® 3D Solution out-performs Planar 1 Use local infill Geogrid system for unpaved roads and platforms.

Address
Presto GeoSystems

670 N Perkins Street

PO Box 2399

Appleton

Wisconsin 54912-2399

United States of America

+1 800 548 3424 (toll-free) +1 920 738 1328 +1 920 738 1222 www.prestogeo.com/applications/roads-highways/

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Regional Offices

Presto GeoSystems

670 N Perkins Street

PO Box 2399

Appleton

Wisconsin 54912-2399

United States of America

+1 800 548 3424 (toll-free) +1 920 738 1328 +1 920 738 1222 www.prestogeo.com/applications/roads-highways/

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