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Allu Introduces In Situ Mixing GPS 3D Positioning System

It's smooth sailing all around with the new positioning system.

Fri August 23, 2013 - National Edition
Construction Equipment Guide

The Allu 3D positioning system is the newest addition to the Allu lineup of specialized products for mass stabilization in the geotechnical market and solidification/stabilization (S/S) in the remediation market. The new system uses GPS signals to precisely locate the Allu PMX excavator-mounted power mixing head, guiding the excavator operator to feed the correct amount of binder and to thoroughly mix each block of the job matrix. With the new Allu 3D positioning system mass stabilization and S/S work can be performed more accurately and more easily than ever before.

Mass stabilization or solidification is a fast and cost-effective method for strengthening soft soils by adding a binding agent into the soil to support pavement or other structures. It also can be used to mix binders or additives into contaminated soil or sediment to immobilize hazardous constituents within the treated material and thus preventing the contaminant from spreading into the surrounding areas.

"When a binder is injected into the soil using the 3D positioning system, there are significant advantages to the operation," said Charles Wilk, manager of mass stabilization and remediation applications of Allu. "Due to the precise placement of the binder, only the optimum amount of binder is used, keeping material costs down. This is critical because generally over 50 percent of the cost for a mass stabilization project is in the cost for the binder agent."

The new system is comprised of four modules, including computer unit with software, touch screen, base station and GPS Sensor. The Allu pressure feeder data acquisition system (DAC), tracks the amount of binder applied and the 3D positioning system tracks exactly where it was applied. This provides the contractor with more accurate record keeping, a superior quality assurance plan and can result in faster acceptance of the project, according to the manufacturer.

The 3D positioning system tells the operator when to change locations and begin stabilization from another point, optimizing mixing production rates, while ensuring thorough mixing, accurate binder addition rates, and efficient use of the binder.

"This exciting new technology will allow the progressive contractor to improve performance while simultaneously reducing operating costs," said Wilk, "which is a perfect scenario."

The Allu 3D positioning system may be installed on both existing and new stabilization systems.

For more information, call 800/939-2558 or visit

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