SOIL STABILIZATION &BASE REINFORCEMENT

Geosynthetics are available in a wide variety of configurations that can be used alone or together to reinforcement and stabilize poor subgrades. Due to their strength, resistance to elongation, and structure, they are capable of restraining the lateral movement of the base materials they come into contact with. They also can function as a separation layer to preventing the intermixing of subgrade soils or aggregate base.The use of geosynthetics in construction can increase the performance and extend the service life of a structure saving money in the long run. However, with so many choices, selecting the proper geosynthetic for your application can be challenging.

Please contact our sales office at 609-971-8810. We welcome the opportunity to discuss your project and help you select the most cost effective product for your next project.

Geosynthetics are available in a wide variety of configurations that can be used alone or together to reinforcement and stabilize poor subgrades. Due to their strength, resistance to elongation, and structure, they are capable of restraining the lateral movement of the base materials they come into contact with. They also can function as a separation layer to preventing the intermixing of subgrade soils or aggregate base. The use of geosynthetics in construction can increase the performance and extend the service life of a structure saving money in the long run. However, with so many choices, selecting the proper geosynthetic for your application can be challenging.

Please contact our sales office at 609-971-8810. We welcome the opportunity to discuss your project and help you select the most cost effective product for your next project.

PRODUCTS WE USE IN THESE APPLICATIONS:

ROAD, RAILWAYS, AND AIRPORTS

The construction of heavy duty haul roads, airport runways and railways can pose a challenge when dealing with a less than ideal sub-base. Geosynthetics such as high performance woven geotextiles and geogrids can provide the necessary reinforcement and separation elements needed to construct in low lying areas where soft wet soils can’t not support the load. Using a geosynthetic layer in between the existing sub-base material and the fill prevents the subgrade from mixing or pumping up into the top layer.

EARTHWORKS & FOUNDATIONS

Geotextiles and geogrids can work together or alone to stabilize and reinforce weak sub-bases to increase the amount of buildable land for development. Envirogrid geocells stabilize the soil by confining the base materials which in turn prevents lateral movement and reduces pressure.  Gabion baskets and reno mattresses can be used to line an outflow area or as a retaining wall.

MECHANICALLY STABILIZED EARTH

Geosynthetics are integral components in the construction of Mechanically Stabilized Earth (MSE) structures such as retaining walls, steepened slopes, and embankments.

STEEPENED SLOPES

Geocells, geogrids, and/or geotextiles can be placed in layers during construction to provide tensile resistance, enhanced stability and reinforcement of a steepened slope.  The facing of the slope can then be wrapped with geotextile/wire basket or geocell and vegetated to enhance the aesthetics.

RETAINING WALLS

Temporary and permanent retaining walls can be constructed  economically with segmental concrete blocks as the facing and geogrids as reinforcement.  Geocells or gabions can be used to created a vegetated retaining wall that is both efficient and aesthetically pleasing.

EMBANKMENTS

Embankments can be constructed on soft soil foundations by placing a geogrid and/or high strength geotextile at the base to provide stability while limiting differential settlement.  Geosynthetics can also be used to reinforce earthen dams, highway embankments, landfills, dikes, levees and to repair landslides.

PROJECT HIGHLIGHT:

Project: Garden State Parkway Widening Project, New Jersey
Contractor: Midlantic Construction

IWT Cargo-Guard supplied  multiple geosynthetics for the widening of Interchange 48-63 on the Garden State Parkway in New Jersey, one of the busiest roads in the nation.  The sensitive wetland area between mileposts 47.7 and 51.3 required the need for slope stabilization along the shoulder as well as roadway subgrade stabilization.  After working closely with the contractor Midlantic Construction, the NJTA, and the engineering department of Maccaferri Inc, it was determined that geogrid reinforcement was the solution.  Due to the unique site conditions, a reinforced-soil structure (RSS) wall was considered the best open for the slope stabilization. To accomplish this, MacGrid WG5 a uniaxial polyester grid from Maccaferri Inc, was selected because of its excellent long term design strength and durability.

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IWT Cargo-Guard supplied  multiple geosynthetics for the widening of Interchange 48-63 on the Garden State Parkway in New Jersey, one of the busiest roads in the nation.  The sensitive wetland area between mileposts 47.7 and 51.3 required the need for slope stabilization along the shoulder as well as roadway subgrade stabilization.  After working closely with the contractor Midlantic Construction, the NJTA, and the engineering department of Maccaferri Inc, it was determined that geogrid reinforcement was the solution.  Due to the unique site conditions, a reinforced-soil structure (RSS) wall was considered the best open for the slope stabilization. To accomplish this, MacGrid WG5 a uniaxial polyester grid from Maccaferri Inc, was selected because of its excellent long term design strength and durability.

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For the roadway stabilization, a biaxial geogrid was needed to redistribute loads and prevent localized shear failures.  The Maccaferri MacGrid EG12 polypropylene geogrid was perfect for this application.

The combination of these two geogrids was an environmentally friendly approach to this project.  It allowed for extremely decreased land disturbance, reduction of aggregate needed, and the reuse of site soil.  All of which reduced construction time and reduced the costs associated to all parties involved.

For the roadway stabilization, a biaxial geogrid was needed to redistribute loads and prevent localized shear failures.  The Maccaferri MacGrid EG12 polypropylene geogrid was perfect for this application.

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The combination of these two geogrids was an environmentally friendly approach to this project.  It allowed for extremely decreased land disturbance, reduction of aggregate needed, and the reuse of site soil.  All of which reduced construction time and reduced the costs associated to all parties involved.

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Disclaimer: These guidelines are for informational purposes only and are intended as illustration or general information only and are not intended as a guarantee or warranty. IWT assumes no responsibilities in connection with the use of this information.