Page 13 - AM Retaining Wall -Magnumstone Extenders Technical Manual
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MAGNUMSTONE EXTENDERS TECHNICAL MANUAL
GRAVITY RETAINING WALL INSTALLATION
MagnumStone Block Installation
All MagnumStone Units shall be installed and leveled front to back and side to side.
152mm Total depth of units + 152mm
152mm on each end
152 - 203mm
Compacted 20mm Road Crush
MagnumStone Block and Extender Installation
Install the MagnumStone base block on the leveling pad. The base block should not have the lugs on the bottom.
Ensure that the blocks are level front to back and side to side.
Place the tongue of the extender block inside the groove of the MagnumStone block.
If extender to extender blocks are required place them in the same manner
as the previous ensuring that the blocks stay level and true.
MagnumStone
Groove Slot Extender tongue Extender to Extender Place the next row of blocks level
inserted groove and tongue and aligned front to back and side
into groove slot connection to side
Backfill MagnumStone Blocks and Extender Units
Backfilling the MagnumStone blocks and extender units with a clear crush gravel (#57 Stone) slightly above the units.
Run a plate vibratory compactor over the stones and units allowing them to settle in the hollow cores.
Sweep any excess stones off the top of the units and blocks.
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