- Joined
- 7 Sep 2010
- Messages
- 37
- Reaction score
- 0
- Country
Hi
Just before Christmas a retaining wall collapsed at my house as a result of tree root movement. Unfortunately the insurance says its not covered so I have to rebuild it myself.
The wall is about 200 years old. The tree has been chopped down.
The wall that has collapsed is about 25 metres long but only about 10 metres has collapsed. it is 1.8metres tall. It is built of random sized sandstone blocks. The front skin is nice finished stone but behind the wall is big hunks of sandstone rubble.
I have taken out all of the back rubble and am left with a vertical face of soil.
My plan is to build two skins of walling. a backing skin of dense concrete blocks and a front skin of the sandstone. then backfill any gap to the soil with aggregate
My issue is that because the sandstone blocks are quite randomly sized how do I tie them to the dense blocks behind because the top of the sandstone block is never likely to be at the top of a dense block. Are there any special ties available that can accomodate this?
then i though should i not just be making this a solid wall with the dense blocks being mortared directly to the sandstone blocks. Is that a better solution?
cheers
Just before Christmas a retaining wall collapsed at my house as a result of tree root movement. Unfortunately the insurance says its not covered so I have to rebuild it myself.
The wall is about 200 years old. The tree has been chopped down.
The wall that has collapsed is about 25 metres long but only about 10 metres has collapsed. it is 1.8metres tall. It is built of random sized sandstone blocks. The front skin is nice finished stone but behind the wall is big hunks of sandstone rubble.
I have taken out all of the back rubble and am left with a vertical face of soil.
My plan is to build two skins of walling. a backing skin of dense concrete blocks and a front skin of the sandstone. then backfill any gap to the soil with aggregate
My issue is that because the sandstone blocks are quite randomly sized how do I tie them to the dense blocks behind because the top of the sandstone block is never likely to be at the top of a dense block. Are there any special ties available that can accomodate this?
then i though should i not just be making this a solid wall with the dense blocks being mortared directly to the sandstone blocks. Is that a better solution?
cheers