Hello everyone!
We are now in our little house, and every day I spend several hours in the garden shoveling gravel and soil in various directions. But it’s about time we start thinking about supporting our terrain.
We need to retain a length of almost 42 meters (138 feet). The height will be about 1 meter (3.3 feet). We’ve already talked to a relative who is quite knowledgeable about this kind of work. He recommended simply building a formwork (50 cm (20 inches) deep into the ground and then 1 meter (3.3 feet) high) and pouring concrete into it—of course including reinforcement. This should be significantly cheaper than using L-shaped concrete blocks.
So far, so good.
However, I’m a bit hesitant about having to get all the OSB boards. We thought about pouring in 2 meter (6.5 feet) sections and then reusing the boards each time, but I’m still not really happy with that idea.
Now I’ve seen that formwork can also be rented. Somewhere I saw a picture of a curved formwork (which would also be a curve in our case). Does anyone have experience with this? Can anyone recommend something? Or do you have a completely different approach?
We are now in our little house, and every day I spend several hours in the garden shoveling gravel and soil in various directions. But it’s about time we start thinking about supporting our terrain.
We need to retain a length of almost 42 meters (138 feet). The height will be about 1 meter (3.3 feet). We’ve already talked to a relative who is quite knowledgeable about this kind of work. He recommended simply building a formwork (50 cm (20 inches) deep into the ground and then 1 meter (3.3 feet) high) and pouring concrete into it—of course including reinforcement. This should be significantly cheaper than using L-shaped concrete blocks.
So far, so good.
However, I’m a bit hesitant about having to get all the OSB boards. We thought about pouring in 2 meter (6.5 feet) sections and then reusing the boards each time, but I’m still not really happy with that idea.
Now I’ve seen that formwork can also be rented. Somewhere I saw a picture of a curved formwork (which would also be a curve in our case). Does anyone have experience with this? Can anyone recommend something? Or do you have a completely different approach?
K
Knallkörper8 Aug 2017 14:31In any case, it might be possible to have the concrete delivered in two stages: first for the foundation and then for the formwork blocks. Excavating the trench and building the walls still takes a lot of time. Filling the formwork also requires some manpower. I assume you don’t have any other hobbies or children—otherwise, why would you put yourselves through this?
Bieber0815 schrieb:
Just to understand, are you higher than the forest? Yes, we are one meter (about 3 feet) higher. I always call our house my little castle.
Knallkörper schrieb:
At least it could be arranged so that the concrete is delivered in two stages, first for the foundation and then for the formwork blocks. I assume you have no other hobbies or even children – otherwise, why would you put yourself through this? Yes, that would be the convenient part. But we have a little son. He has the energy of three children. Plus a garden that needs to be completely weeded and also 60 cubic meters (about 78 cubic yards) of topsoil to be distributed. Why do we put ourselves through this? I like the pain. Just kidding, I’m basically doing it for the money. There’s a wedding in a month, so I need to save up.
K
Knallkörper8 Aug 2017 14:57I understand that. I had your garden, weeds, and topsoil in mind. And is your partner also that hands-on? I mean, there’s another option: building the wall later. Berlin wasn’t built in a day, after all.
My recommended reading on this topic, from recent discussions here: https://www.hausbau-forum.de/threads/Grundstück-mit-gelaendesprung-trennmauer-zum-Nachbarn-Fundament.24889/page-6#post-213396 (with pictures)
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Hello Evolith
Excavate the trench down well below the frost line. Pour in 15cm (6 inches) of concrete and smooth it out. Then build up the wall using 24cm (9.5 inches) concrete blocks. One concrete block in the size 50 x 25 x 24.5cm (20 x 10 x 10 inches, width x height x depth) costs €2.95. If you buy a whole pallet, it's about 30 cents cheaper per block. On the inside, I would coat the wall with bitumen; after the bitumen has dried, attach polystyrene foam (which is cheaper than extruded polystyrene). Put a dimpled membrane in front of it. This method is very durable and the most cost-effective. It requires some skill and personal effort.
Steven
Excavate the trench down well below the frost line. Pour in 15cm (6 inches) of concrete and smooth it out. Then build up the wall using 24cm (9.5 inches) concrete blocks. One concrete block in the size 50 x 25 x 24.5cm (20 x 10 x 10 inches, width x height x depth) costs €2.95. If you buy a whole pallet, it's about 30 cents cheaper per block. On the inside, I would coat the wall with bitumen; after the bitumen has dried, attach polystyrene foam (which is cheaper than extruded polystyrene). Put a dimpled membrane in front of it. This method is very durable and the most cost-effective. It requires some skill and personal effort.
Steven
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