Best Backfill Material For Retaining Wall

Compacted native soil can be used to backfill the rest of the space behind the wall.
Best backfill material for retaining wall. 5 best stones for backfill. It should be coarse well draining material to help keep the basement dry. Site soils are fine if the natural soil in the area is mainly sandy or gravelly but don t use the existing soil from the. For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel.
This is so that when water gets into the space it does not become bogged down in soil but instead can flow down the wall to the drains or weep holes. Second a retaining wall must have properly compacted backfill. For diy purposes opt for manufactured blocks that are. In order to provide proper drainage at least 12 inches of granular backfill gravel or a similar aggregate should be installed directly behind the wall.
Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks. Backfill refers to the dirt behind the wall. Trench back fill tbf 3.