Wet the bags daily for a couple of days.
Unopened concrete bag wall.
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.
Depending on the height of the dam wall and the capacity of the reservoir it may be desirable to leave channels for water to runoff between bags in the top tier.
2 feet is the max height for those blocks and if built on a proper base and with the first course level you can backfill the wall up to 2 feet tall.
The 2020 update is now up today june 15 2020 a 5 5 minute video update about my concrete bag retaining wall it s a real nail biter.
The paper slowly comes off and should be gone in 6 months.
The bags will set.
A simple cost effective way to make a retaining wall is to stack 60 lb.
Rather than messing around with mortar they lay the walls down like lego pieces using concrete while it s still in the bag.
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.
As an alternate drive straight rebar rods down through the bags as shown.
The webers 25 548 views.
Concrete bag retaining wall pt 2.
For a low wall you can use the small concrete blocks that kms linked to.
Alternate the staple direction from bag to bag and tier to tier.
Driven into the bags.
An easy way to build retaining walls.
Set it back about a half to a quarter inch so the wall will lean gently into the hill.
Step 7 fill the trench between the dirt and the concrete wall with some gravel.
After 1 week of rain from 2500 to 950 sq ft duration.
That s right the idea is that you don t open the packaging.
Over time the bags will degrade and you will have an elegant and permanent retaining wall.
Once the bags are laid you wet everything down thoroughly with a hose saturating all of the bags.
How to pour a concrete slab for beginners diy duration.