TECHNICAL

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Installation:

• Site Preparation: When accessways are to be formed on very poor ground such as peat or marsh, attempt to leave the surface layer of vegetation to assist in load bearing. Where practical, level very deep ruts and clear the area of large stones, trees, etc. When sub-grade has been exposed and levelled, apply fabric immediately to minimise damage to the surface.
• Roads: Roll out Mudstop™ fabric from the point of access to the site along the length of the intended accessway. Fasten down the edges with Ground Staples or stones to prevent movement by wind. Overlap the joints by 0.3
  to 1.0 metres, as practical for the sub-grade conditions and the nature of the aggregate.
• Soil Stabilisation: Roll out Mudstop™ fabric. On very soft subgrade, begin placement of fabric on the firmer soil to establish an anchorage. Fasten down edges with Ground Staples or stones to prevent movement by wind. Overlap the joints by 0.3 to 1.0 metres, as practical for the subgrade conditions and the nature of the aggregate.
• Aggregate: Single size, compactable, rounded aggregate is recommended. Where sharp or flinty aggregate is used, a blanket of sand over fabric assists in preventing damage. Largest aggregate dimension should not exceed one third of sub-base depth.
• Aggregate Depth: Spread fill evenly across top of fabric to a minimum depth of 100mm. In extremely soft conditions, 300mm of fill may be required to consolidate surface. Without a geotextile raft, at least 500mm of fill may be required for problem areas.
• Drainage Filter: Mudstop is not for drainage applications (we recommend nonwoven geotextiles be used, however where woven geotextiles are specified, see woven). Use this method as a general guide for drainage. Lay fabric into the drainage trench before the trench is filled with scoria or aggregate. The geotextile should have sufficient width to allow it to be folded over the completed trench before soil covered. A drainage coil is placed in the bottom of the trench on top of a layer of aggregate. Aggregate is filled to the top and the geotextile is folded over the top to prevent soil from entering the drain.