Place the geosynthetic directly on prepared surface. It is advisable to leave vegetative cover in place to provide a support matting for construction activities.
The geosynthetic should be deployed flat and tight with no wrinkles or folds. The rolls should be oriented as shown on plans to ensure the principle strength direction of the material is placed in the correct orientation. Adjacent rolls should be overlapped or seamed as a function of subgrade strength (CBR).
Prior to fill placement, the Engineered Woven Geotextiles should be held in place using suitable means such as pins, soil, staples and sandbags to limit movement during fill placement.
Fill should be placed directly over the Mirafi RSi Engineered Woven Geotextiles in 200 mm to 300 mm loose lifts. For very weak subgrades, 450 mm lifts or thicker may be required to stabilize the subgrade. Most rubber-tired vehicles can be driven at slow speeds, less than 16 km/h and in straight paths over the exposed geosynthetic without causing damage. Sudden braking and sharp turning should be avoided.
Tracked construction equipment should not be operated directly upon the geosynthetic.
A minimum fill soil thickness of 150 mm is required prior to operation of tracked vehicles over the geosynthetic. Turning of tracked vehicles should be kept to a minimum to prevent tracks from displacing the fill and damaging the geotextile.