Rather than messing around with mortar they lay the walls down like lego pieces using concrete while it s still in the bag.
Cement bag concrete bag retaining wall.
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.
There is no mixing or forming required simply stack the bags as described in the usage instructions.
We put a stop to our erosion problem with just a few concrete bags.
They look like sandbags but are actually hessian bags filled with wet concrete and pinned together with steel rods making a good solid retaining wall.
Friends old and new show up and help us put up the first section of our retaining wall.
Step 7 fill the trench between the dirt and the concrete wall with some gravel.
Building a cement bag retaining wall around a culvert by pouring dry concrete mix in small lunch bags and stacking them like bricks.
This will keep our culverts and driveway all intact while giving it a cool look.
There are block retaining walls stone retaining walls and poured concrete retaining walls but these can be quite complicated and expensive.
Rip rap is a sand and cement mixture packaged in a biodegradable kraft bag designed for erosion control applications.
Building a retaining wall in the conventional ways above is not a trivial matter.
So diyers have come up with an interesting trick.
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.
Set it back about a half to a quarter inch so the wall will lean gently into the hill.
That s right the idea is that you don t open the packaging.
We re using a dry bag method stacking in courses and stabilizing wit.
Cob buildingbuilding a houseearth bag homesearthship homenatural homesnatural buildinground housediy homeoutdoor projects.
Rip rap is also available in a biodegradable polyester scrim reinforced kraft bag for improved durability.
Video of the day.
See how well it works in part 2.
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.