Follow the manufacturer's guidelines to determine the structural section thickness. The aggregate selected should, whenever possible, be compactible and non-moisture sensitive. Usually, the geotextile is laid in the direction of construction traffic. However, specific project dimensions may alter this layout. Adjacent fabric edges can be sewn in the field with a portable sewing machine powered by a generator.
Field sewing typically requires three or four laborers.
Use of the presewn fabric minimizes the need for field sewing or overlapping. Sewing costs can be compared to cost of the geotextile lost in an overlap zone. Two laborers can easily handle a roll of nonwoven geotextile fabric. In normal construction practices, trucks backdump aggregate onto the fabric. A tracked bulldozer works best to spread the aggregate.