MODULARWALLS Slimwall Classic Post, Installation Manual

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BACKFILLING
Incorrect materials and method used to backfill behind the wall can cause damage to the wall.
Allow suitable time for the concrete footings to cure before backfilling. 2 days should be acceptable for most
installations.
The agricultural line is then placed onto this layer. Cover the agrcultural line with further aggregate.
Geotextile lining is then laid over the agricultural line and up the excavated face. This is to prevent silt entering
and possibly blocking the drainage area.
Backfill up to approximately 75% (3/4) of the total retained height with a free-draining granular backfill
material. For example, if you are backfilling to a height of 500mm, then use the granular backfill at least
375mm high. This should extend no less than 150mm off the back of the wall.
Normal soil can than be used to top-dress the area behind the wall and to cover the backfill.
NOTE: Do not compact or vibrate the top layer.
ADDITIONAL FACTORS TO CONSIDER
When backfilling, take care not to damage the sealing or membrane at the back of the wall.
Avoid the use of heavy machinery to place backfill materials. If it is necessary to use such equipment, maintain a
distance from the back of the wall equal to 3 x the retained height. This also applies to vehicles approaching the
wall after completion.
Do not backfill higher than the top of the wall. If it is necessary, use a batter (slope) ratio of 1:10 up to level
ground.
ADDITIONAL
SLIMWALL™ RETAINING PANEL
32 SLIMWALL™ INSTALLATION GUIDE