Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Concrete bag retaining wall diy.
Concrete runs about 4 bucks a bag and at height of 3 or so would require a good number to provide 3 feet of wall.
Spread additional mortar and lay cap block to finish the wall.
A simple cost effective way to make a retaining wall is to stack 60 lb.
Once the bags are laid you wet everything down thoroughly with a hose saturating all of the bags.
Just stack up bags on concrete leave them as is through a few big rains ir thoroughly soak a few times and then tear off paper voila.
A verysimple concrete bag retaining wall with no work.
From a cost perspective basic wall blocks would look much better and be cheaper you could set them up as a pair if you need to extend beyond the 2 foot height limit.
Of leveling sand and half the height of the first course of blocks.
Leave the concrete in the bag stack like legos wet with a hose core77 building a retaining wall in the conventional ways is not a trivial matter.
An easy way to build retaining walls.
There are block retaining walls stone retaining walls and poured concrete retaining walls but these can be quite complicated and expensive.
So diyers have come up with an interesting trick.
Step 7 fill the trench between the dirt and the concrete wall with some gravel.
Of compacted base 1 in.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Rather than messing around with mortar they lay the walls down like lego pieces using concrete while it s still in the bag.
Mix the fill mortar slightly wetter than what you d use for joints.
Set it back about a half to a quarter inch so the wall will lean gently into the hill.
Over time the bags will degrade and you will have an elegant and permanent retaining wall.
How to build a concrete wall figure a.
When you reach the finished height of the concrete block retaining wall fill those cores containing rebar to the top with mortar.
Smooth the top with a trowel.