Once the bags are laid you wet everything down thoroughly with a hose saturating all of the bags.
Concrete bag retaining wall with rebar.
Perforate and tamp bags as thoroughly as possible.
Prior to wetting the concrete you can easily drive rebar into the bags as reinforcement.
When steel makes contact with concrete a non reactive film develops on the surface of the rebar that helps protect it from corroding.
Spread additional mortar and lay cap block to finish the wall.
The concept is fairly straightforward.
Calculate the amount of rebar needed for reinforcing a wall.
This calculator assumes that you are using 20 foot long lengths of rebar.
Set bags in a running bond pattern with the ends butted together and corners interlocked.
Stagger the second level bags over the bags on the first level.
The deformations in rebar bond to concrete and the strong bond enables loads to be transferred between the two materials.
If your wall is over 40 feet long it will add 2x the amount of overlap required.
Step 3 stack the second level of concrete bags on the first level.
Retaining wall of unopened sacks of concrete i built a seawall using 80 sakrete bags many years ago.
Stack the bags alternate rows by half a bag just like laying brick or block and drive some 3 rebar down through every 3rd or 4th bag.
For best results drive steel reinforcing rods through each bag to anchor them.
Concrete bags for a retaining wall saw an article in this old house magazine.
Concrete and rebar reinforced steel is manufactured as bars rebar or welded wire mesh.
See more ideas about retaining wall concrete bags concrete retaining walls.
Anchor the bags to the slope with 3 8 rebar.
As each tier is laid backfill with tamped in dirt to assure a solid bank.
Mix the fill mortar slightly wetter than what you d use for joints.
Once the concrete sets up you can either wait for the paper to biodegrade peel it off or burn it off.
Smooth the top with a trowel.
When you reach the finished height of the concrete block retaining wall fill those cores containing rebar to the top with mortar.
Lay the first level of concrete bags out where the wall will be built up.