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TriAx® Geogrid and Nonwoven Geotextile save client nearly $810,000 and 29,100 tonnes of aggregate in warehouse yard.

The Global Transportation Hub (GTH), a major inland port located on the west end of Regina, Saskatchewan, with access to both truck and rail, gives local and western Canadian industries state-of-the-art access to export markets.

Morguard Investments Ltd., one of Canada’s leading fully integrated real estate organizations, was designing a new 48,000 m2 yard and warehouse facility at the GTH. The contractor (PCL) was looking for potential savings for their client, and they approached Nilex for advice and options on reducing aggregate in the unpaved areas of the site.

Location

Regina, SK

Product

  • TriAx® Geogrids
  • Nonwoven Geotextiles

Project Partners

  • Owner: Morguard Investments Ltd.
  • Consultant: Associated Engineering
  • Contractor: PCL
  • Completion Date: November 2014

CHALLENGE

Nilex was faced with the challenge effectively reducing the aggregate structure while at the same time confidently showing the proposed structure would withstand the anticipated heavy repetitive loading on this site.

SOLUTION

Along with our partners at Tensar, Nilex provided PCL with a stamped design utilizing an estimated 63,000 m2 of TriAx Geogrid (TX140) to interlock the aggregate structure while at the same time reducing the required aggregate by 300 mm.  In addition, the same amount of Nonwoven Geotextile (4551) was also incorporated at the base of the structure between the clay and subbase aggregate layer directly below the TX140.

Geotextiles are often used for subgrade separation to mitigate migration of the clay into the aggregate structure.

INSTALLATION

On average, the subcontractor utilized a crew of six laborers and operators for rolling and placing of geogrid and geotextile along with operating the equipment required for aggregate placement. The overall installation took approximately one month; in peak times up to 1000 m3 of aggregate was placed per day. The client believes using the TX140 geogrid and nonwoven geotextile solutions saved them well over two weeks of installation time.

RESULTS

With the client’s best interests at heart, Nilex provided a sound recommendation of TriAx Geogrid and nonwoven geotextile based on proven historical performance. The result was a reduction of at least 300 mm of aggregate in the unpaved structure, equaling approximately 29,100 tonnes and 855 truckloads. In addition, the client saved nearly $810,000, and an estimated total carbon emissions savings of 34%.

THE NILEX ADVANTAGE

Nilex is committed to unearthing better results. Whether it’s for a civil, resource or environmental project, we offer the latest engineered and technically superior materials and techniques to save our customers time and money, and minimize the need to move or remove earth, and reduce the need for granular materials.

With over 35 years experience, a long-standing commitment to the environment and highly qualified staff, Nilex delivers the products and technologies that give clients an economic advantage with environmental benefit.