Drawing of L-support

[jansta]

Hello

New to the forum and looking for help with a drawing for a mold for an L-support.

I'm planning to cast a garden wall that is 0.70 to about 1.50 meters high, at the highest point. The length is about 10 meters. I would appreciate any advice and instructions on the wall.

Is it reasonable to build with concrete blocks or Leca and plaster it? Grateful for your comments

Jan

 

[Larsa]

I have cast an L-shaped retaining wall, approximately 12 meters and up to about 180 cm in height. I used natural stone/quarry stone on the outside for about half of this wall and poured concrete against it from the inside. The other half is solid concrete. For the form, I used rough boards to build a "plank" with three horizontal 45*95 on the outside. The same construction was used on the inside with a "hanging form" that ended 15 cm above the ground (drainage holes are good for joining the form sides). I fixed the form sides with form fittings that I rented (you run reinforcing bars through the form and secure with the fittings). For the lower part of the L, I used plywood that was screwed in place during pouring, after which I loaded stones onto them.

If you are going to pour the entire wall in one go with a concrete truck, remember that the pressure at the bottom of the form will be MASSIVE. Keeping down the lower part of the L requires a lot of weight. Due to the L-shape, you also get an upward force, so the form must be properly anchored to prevent it from lifting.

If you pour in two steps (the slab first and then the wall), it becomes easier with anchoring, etc.

 

[Mats]

One might consider prefabricating the elements to make them much easier to cast by tilting the whole thing forward, so to speak, so that the back of the L is lying down and the bottom points downward, like this

XXXXXXXXXXXXXXXXX
X
X
X
X

Then you can create a simpler mold where you only leave the top open and make the front removable. This way, you can just tip out the finished element and cast another one in the same mold. I made 32 in this way a few years ago for the driveway.

 

[drakbane]

Hi,

apparently I'm also going to cast L-supports.

UUUUUU
...............U......L................PPPPPPPPPPPPP
...............U......L.........SSS
...............U......L.....S
...............U....SL
...............U.S...LLLLLL

Seen from the side.
U is our conservatory, with about 2.5 m in ceiling height, S is a slope up to P, which will become parking for our cars.

L is the L-supports I plan to cast.

They will be about 2 m high and about 3 m wide together. I'm considering casting the lower part first and letting the reinforcing bars protrude and then casting the second part.

Does this work???

/Joakim

 

[Mats]

2 meters height is pretty impressive for an L-support, so it's almost time for an engineer to calculate the whole thing.