Trying to build a recessed shelf, but I'm wondering what support I need for a Lecablock (depth/thickness = 9cm) when I'm building some "projections"/"overhangs" (is that what you call it? 
). See the image, I plan to build up the red-marked area, the wall is 220 high, 200cm wide. (The blocks in the image should naturally have staggered joints, just trying it out here).
I thought I could use something like copper pipes that I drill into and hang the blocks on + just mortar to glue it, or is it better with adhesive? I also have lightweight concrete blocks/Siporex, which might be better for this?
What experiences do you have?
). See the image, I plan to build up the red-marked area, the wall is 220 high, 200cm wide. (The blocks in the image should naturally have staggered joints, just trying it out here). I thought I could use something like copper pipes that I drill into and hang the blocks on + just mortar to glue it, or is it better with adhesive? I also have lightweight concrete blocks/Siporex, which might be better for this?
What experiences do you have?
Why not armeringsjärn?
thought about it too, but it's soft lightweight concrete in the wall (only) and a little afraid that the rebar will tear apart the blocks, also see in other places that for example drain pipes are "hung"/supported by smooth copper pipes.
If it had been a brick wall or a load-bearing wall, rebar would surely be perfect. Is this the recommended method?
Considering that the wall is lightweight concrete, I think it should be lightweight concrete if it's going to "hang."
If it had been a brick wall or a load-bearing wall, rebar would surely be perfect. Is this the recommended method?
Considering that the wall is lightweight concrete, I think it should be lightweight concrete if it's going to "hang."