No earthmoving machinery, vehicles or heavy compaction equipment allowed in this region
Clean sand fill carefully placed behind wall in 250mm layers MAX
No impact forces to be applied to the wall
Grout holes with 1.5 cement mortar by volume with with just sufficient water to make a workable mix.
Compact soil around footings to resist 7 Blows / 300mm to 600 deep using a standard penetrometer.
