Segmental Retaining Walls
Anchor Landmark System E VA L U AT E D B Y H I T E C
IMPROVING YOUR LANDSCAPE™
Anchor Landmark System For high performance under various loading conditions, Anchor Landmark is a positive mechanical connection retaining wall system that takes performance to new heights. This system has been evaluated by HITEC (Highway Innovative Technology Evaluation Center). Designed with a unique positive locking connection between stone, facing and grid, the system offers 100% connection strength with a wide range of tested geosynthetic reinforcement products.
APPLICATIONS Landscape Retaining Walls • Geosynthetic Reinforced Tall Walls • Erosion Control
PRODUCT INFORMATION
COMPOSITION AND MANUFACTURE Anchor Landmark is made from a “no slump” concrete mix. Made under extreme pressure and high frequency vibrations, Anchor Landmark has a compressive strength greater than 4000psi, a water absorption maximum of 7%.
Anchor Landmark Full Component Nominal Dimensions 15 L x 8 W x 12 5/8" H* 15 L x 8 W x 11 7/8" H* Wt./Stone 85 lbs. Face ft./Stone .83 Stones/Pallet 32 Approx. Wt./Pallet 2,720 lbs. Face ft./Pallet 26.56 Batter 4° Product Number 842
INSTALLATION 1. Layout: Stake out the wall’s placement according to lines and grades on approved plans. Excavate for the leveling pad to the lines and grades shown. Excavate soil to a dimension behind the wall for placement of grid and reinforced soils. The trench for the leveling pad should be a minimum six inches in front and back of the placed wall stone 2. Leveling Pad: The leveling pad consists of a crushed aggregate compactable base material with a three quarter (3/4) inch maximum top size aggregate, minus the fines. The pad must extend a minimum six (6) inches in front and behind the first course of stone and be a minimum six (6) inches in depth. Compact the aggregate in maximum eight (8) inch lifts and check top elevation of block coursing for level. 3. Base Course: Place a string line along the back of the stone to align the wall stones. Begin laying stone at the lowest elevation of the wall. Place wall stones flat on the leveling pad with stone facings aligned according to plans. Place the stones side by side, flush against each other and in full contact with the leveling pad. Level the stones front-to-back and side-to-side. Check the stones for proper horizontal and vertical alignment. Shimming may be required to maintain batter. 4. Wall Construction: Clean any debris off the top of the stones. Place the second course of stones on the base course maintaining a running bond pattern (do not align vertical joints). Backfill with drainage aggregate directly behind the stone. Fill behind the aggregate with soil meeting design parameters. Place and compact the backfill material before the next course is laid. Hand-operated equipment should be used within 4 feet of the wall. Avoid driving heavy equipment within the same area. 5. Drainage: Fill in the area behind the stones with drainage aggregate to a minimum horizontal dimension of 12 inches. Place a perforated drain pipe at the base of the drainage aggregate and above the wall’s front finished grade at the toe. Daylight or direct the drain to an area lower than the lowest drain elevation in the wall. Additional drainage may be required. 6. Compaction: Place the backfill soil behind the drainage aggregate and compact backfill within four (4) feet of the wall with a hand-operated compactor. Aggregate is to be level with or slightly below the top of each course. Add soil and compact backfill soil as necessary. Testing for density may be required. 7. Geo-Grid Reinforcement Placement: Check approved wall construction plan for grid placement. Determine which courses will have reinforcement grid placed into the backfill. Measure and cut the reinforcement grid to the design length on the plans. The reinforcement grid has a design strength direction to be laid perpendicular to the wall. Lay geosynthetic reinforcement horizontally on top of the concrete retaining wall units and the compacted backfill soils. Place the geosynthetic reinforcement within one inch of the face of the concrete retaining wall units. Install the Landmark Locking Bar as shown on the the shop drawings. Place the next course of concrete retaining wall units on top of the geosynthetic reinforcement. Apply the next course of stones to secure it in place. At the back of the wall, pull the reinforcement taut. Add drainage aggregate behind the stones, then add the backfill soil and compact. Testing for proper density and compaction may be necessary to meet project requirements. A minimum of six (6) inches of backfill over the grid is required prior to operating most vehicles on top of the reinforcement.
Anchor Landmark Tapered Full Component** Nominal Dimensions 15 L x 8 W x 12 5/8" H* 15 L x 8 W x 11 7/8" H * Wt./Stone 80 lbs. Face ft./Stone .83 Stones/Pallet 32 Approx. Wt./Pallet 2,560 lbs. Face ft./Pallet 26.56 Batter 4° Product Number 843
Anchor Landmark Anchor Landmark Foundation Component Tapered Half-High Component** Nominal Dimensions Nominal Dimensions 7 1/2 L x 8 W x 11 1/2" H 7 1/2 L x 8 W x 12 3/16" H Wt./Stone 48 lbs. 7 1/2 L x 8 W x 1113/16" H Stones/Pallet 64 Wt./Stone 50 lbs. Approx. Wt./Pallet 3,072 lbs. Face ft./Stone .415 Face ft./Pallet 26.56 Stones/Pallet 48 Batter 4° Approx. Wt./Pallet 2,400 lbs. Product Number 840 Face ft./Pallet 19.92 Batter 4° Product Number 841 Pavestone Cap for Anchor Landmark Nominal Dimensions 18 L x 13 1/2 W x 3 3/4"H Wt./Stone 71 lbs. Stones/Pallet 42 Approx. Wt./Pallet 2,982 lbs. * Fractional dimensions Linear ft./Pallet 63 are nominal. Caps not available in all markets. Product Number 844 Depths of units vary slightly to achieve a staggered rock-like appearance once the wall is built. This variation does not affect estimating and does not require special installation. Actual unit weight, size and availability may vary by region. *Width dimensions taken from the bottom of the stone. ** Length of the back of the tapered stone is 1 inch (25mm) less than the face of the stone.
8. Finish Grade and Surface Drainage: Protect your wall from water damage and erosion with a finished grade to provide positive drainage away from the top and bottom of the wall structure. To minimize infiltration of water into the top of the backfill area of the wall, place a minimum six (6) inches of soil with low permeability (clay or similar materials). Complete installation & specification details are available by contacting your Pavestone Sales Representative.
w w w. p a v e s t o n e . c o m © 2007 by Pavestone Company. All Rights Reserved. and Improving Your Landscape™ are trademarks of the Pavestone Company.
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Retaining Wall Systems
SKU# CM 179v4 08/07
Note: Colors are shown as accurately as possible in brochures & samples, but due to the nature of the product, regional color differences and variables in print reproduction, colors may not match exactly.