Hi, I am building a retaining wall about 1m high, 20m long and 2 skins wide. I have dug the trench to the right dimensions, and would like to know what to make the footings from.
Do I use concrete/sand/aggregate and in what ratio?
OR
Do I use concrete/ballast and in what ratio?
I am also wondering whether to do the back skin (not visible) in concrete blocks or breeze blocks?
Any help much appreciated.
Do I use concrete/sand/aggregate and in what ratio?
OR
Do I use concrete/ballast and in what ratio?
I am also wondering whether to do the back skin (not visible) in concrete blocks or breeze blocks?
Any help much appreciated.
