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GravityStone Retaining Wall Installation |
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| GravityStone™ Retaining Wall Installation Guide |
Leveling Pad
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Prepare a foundation by excavating, placing a drainage pipe, filling in, and compacting the specified aggregate to the desired grade. A small amount of bedding sand can be placed over the compacted aggregate to assist in final leveling. |
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Place First Course of Face Blocks
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Install the first course starting at the lowest elevation. After placing the string line, position each Face Block to the line, level side to side, and front to back. Use a rubber mallet to seat the block. To raise the block, if needed, use additional leveling pad material. |
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Place the Anchor/Junctions
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Mark the precise location for the Anchor/Junctions with a string line. Position block to string and level front to back and side to side. The elevation of the Anchor/Junction should never be higher than the face block. |
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Place Additional Anchor/Junctions
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Continue by laying out the full length of Faces, and Anchor/Junctions to the required depth of the base course. |
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Place Trunks
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Once the Anchor/Junctions and Faces are in position, simply fill in by sliding the Trunk blocks into each Face and Anchor/Junction. |
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Place Plugs
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After completing each course, place a GravityStone reversible Alignment Plug into the top of each Face Block. Placing the GravityStone alignment plug in the forward position will create a verical wall while reversing the plug will create a 1/12 (4.5-degree0 batter. |
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Stack the Cells
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Stack Faces, Anchor/Junctions, and Trunks until the desired height is attained. |
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Backfill
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After reaching a maximum of three courses, backfill and compact the GravityStone units with the specified aggregate. Clean the tops of the Faces, and Anchor Junctions and then continue stacking. |
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Stack Additional Courses
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Continue stacking the wall to the appropriate depth and height, backfill and compact with the specified aggregate. Mini-cell may be used in the top courses to maximize efficiency. |
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Cap the Wall
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Once the body of the wall is complete and backfilled, permanently affix a solid GravityStone cap to the Face Block using an approved concrete adhesive. Ensure blocks are clean and dry. Place 1/4-inch bead of adhesive parallel to the wall face on both sides of the plug holes. Place the Cap Block onto the adhesive, making sure of it's proper position. |
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Drainage Swale
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To minimize water infiltration, place a drainage swale at the top of the wall. This diverts surface water from infiltrating into the face drain or infill volume, and from flowing over the top of the wall. Use a low permeability soil layer above a filter fabric for best protection of the retaining wall. |
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Finish Grading
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Finish grading consists of properly placing and compacting fill above the top of the wall and at the toe of the wall. When landscaping behind or in front of the wall, the finish grade should be at least 4-ionches low to provide for topsoil, seed, sod, or other landscaping treatments as specified in the wall design. |
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GravityStone Wall Installation