Landscape Architect & Specifier News

JUN 2017

LASN is a photographically oriented, professional journal featuring topics of concern and state-of-the-art projects designed or influenced by registered Landscape Architects.

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Continued from page 12 h a rd s c a p e s 14 Landscape Architect and Specifier News — to discuss how their products could be used to solve some of these issues. They explained the benefits, including strength, flexibility, permeability, frost resistance, low maintenance, and ability to carry high loads at lower depths than regular products. The design team was immediately interested. The paving would be maintenance free, and could be pressure washed daily. It would also be able to take the light vehicle loads imposed by scissor lifts or other equipment needed in setting up for events. The design team was particularly thrilled by the 10-year warranty for the selected products. To test the 'Trass Bedding' (a permeable drainage mortar), 'Elutriant' (paving joint adhesive) and 'D1 Grouting' compound, a 10'x10' mock-up was constructed at the manufacturer's office. The Trass Bedding is a binding agent for the base course. The Elutriant is an adhesion bridge for stone slabs installed on the Trass Bed. D1 Grouting, which is permeable and can be colored to meet a project's specifications, was applied over the surface and squeegeed into the joints. As a supplement to the grouting, the Flex Joint was used every 10 feet in the final project. This grouting product has rubber particles that allow the pavers to bounce back into place after pressure is applied, such as on the curve of a road. Like the D1 grout, the Flex Joint is permeable and can be color matched to fit the project. To ensure the project ran smoothly, the manufacturer was backed up on all the reference calls, mock ups, and testing, and provided the installer with training. The project was completed on time and Canada Place is now ready for the 2017 cruise ship season, despite some unpredictable weather and challenging site conditions. Top, Right: The manufacturer provided testing and training on and off site for the four products used: 'Trass Bedding,' 'Elutriant,' 'D1 Grouting' and 'Flex Joint.' The Trass Bedding binds the base course; the Elutriant, which is applied to the pavers, adheres the paving to the base. Above: The grouting and Flex Joint, which are both permeable and can be color matched to a specific project, are mixed in buckets and applied to the joints with a squeegee. Once dried, the excess can be swept off. Surfaces can be walked on after 24 hours and are fully load bearing after 7 days. The primary difference between the two is that the Flex Joint has rubber particles, making the grouting more flexible and able to more easily bounce back after pressure. Bottom, Right: Installation was completed on schedule and in time for the start of the 2017 tourist season. The base and grout products are covered by the manufacturer's 10-year warranty.

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