Installation Guidelines Site Preparation Standard excavating, grading, and compaction equipment should be used to grade and compact the area to be protected and to excavate anchor, flank, and trenches.Vegetation and obstructions, such as roots and projecting stones, should be removed.Unsuitable soils should be removed and replaced with select materials and compacted according to contract specifications.Draglines and bulldozers are suitable for rough grading, but fine grading shall be performed with a backhoe, grader, or similar equipment.Underwater installation may be facilitated if a leveling course of granular material is placed prior to fabric form. Panel Placement Establish Starting Point & Alignment LinesIt is custom to work from upstream to downstreamPrevents construction flows from undermining or bunching fabricString lines are set both parallel and perpendicular to the slope in an offset mannerPlacement of first fabric panelPanels are identified for placement according to fabrication drawingsPanels are accordion folded and then rolledPanels should be extended into position by pulling the leading side of the panelPanels should be placed loosely, and extra form contraction should be gathered into temporary tucks at each seam and the top of the slopePlacement of remaining fabric panelsIf panels are sewn together in the field, the succeeding panel is placed atop the last mil width.Panels are then joined together edge-to-edge by sewing the top layers and bottom layers independentlyIf panels are joined together with pre-installed zippers, the succeeding panel is placed adjacent to the last mil width Fine Aggregate Pumping Fine aggregate concrete is pumped into the forms by inserting a 2” Ø grout hose through a small slit in the top layer of fabric In order to control the position and prevent sliding, concrete is either pumped into the portion of the panel that has been placed into the anchor trench or is secured with sandbags A tight seal is made by wrapping non-woven fabric around the pipe, as well as closing the slit once pumping has discontinued The first section of the panel is left unpumped to prevent fabric from sliding into the flank trench Starting in the second section, the injection pipe should be inserted inside the first baffle and at a distance from the toe as determined by slope angle and fabric type The flow of concrete should always be directed toward the toe of the slope The spacing of injection ports is also determined by slope angle and fabric type As the fabric is being pumped, the panel will contract, causing a tightening of the form As one baffled section is fully inflated, the contractor will repeat these steps along the alignment of the plans until the entire lining has been pumped Each individual baffle sewn into the fabric form will act as a cold joint, allowing the contractor to control the workflow Once concrete has cured (approximately 24 hours), toe and flank trenches can be backfilled and compacted Mix-Design Typical Range of Mix Proportions Material Mix Proportions lbs./cu. Yd. After Placement lbs./cu. Yd. Cement 750–850 810–920 Sand 2030–2120 2195–2290 Water 485–555 Fly Ash Up to 25% of Cement Fabric-formed fine aggregate concrete possesses superior physical properties. The compressive strength of fine aggregate concrete pumped into fabric forms is typically 1.5 to 1.75 times greater than companion samples taken from conventional concrete test cylinders. In addition, the fine aggregate concrete has less than 5% water absorption. This, combined with a "case-hardening" effect, produces a concrete that is abrasion resistant, durable under freeze-thaw action, resistant to "breakup caused by thermal cracking, highly impermeable, and resistant to acid, alkali salt, organic solvents, biological organisms and petrochemicals and permits FFC revetments to be constructed without reinforcement steel. Installation Tips Always maintain appropriate slack throughout the fabric to prevent fabric stretching, pinching, over-stressing, and non-uniform thicknessesAverage pumping speed is 15 yd3/hourStandard pumping distance from worksite is 500 linear feet, with as much as 2,500 linear feet possible with sufficient pump(s) set-upConcrete line pumps are the choice pump for ease of installation. They are portable, towable, small, and can pump various mix designs. Boom trucks are NOT recommendedProper mix design is critical to a smooth, efficient, and successful installationPumping procedures and sequence is key to preventing installation malfunctionsTypical crew size includes four laborers, one pump operator, and one superintendent Contact For Installation Support Your Name(Required) Your Email(Required) Your Company Your Title What is Your Role Project Name and Location(Required) Scope of the Project(Required)Files of NoteMax. file size: 100 MB.CommentsThis field is for validation purposes and should be left unchanged.