I've recently been renovating my house, starting in the spare room! Had to remove the plaster from the walls as it was cracked and slightly damp! When I was taking the beading off around the corner of the window frame a large corner of cinder block came with it....I was just wondering how I would repair this?
Cinder Block Corner Broken Off
- Thread starter Viva_moz
- Start date
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It looks very unstructural.
Some people would just use filler.
If it was me and the broken piece was available, I think I would prime both broken surfaces with PVA and stick it back with a cement/PVA/water paste, then when fully set, patch up the plaster with Easyfill.
If you don't know how to patch plaster on a corner, you fix a batten lined up with the edge to give you something to press your trowel against. Do the two faces of the corner separately, otherwise it will bulge and sag.
Some people would just use filler.
If it was me and the broken piece was available, I think I would prime both broken surfaces with PVA and stick it back with a cement/PVA/water paste, then when fully set, patch up the plaster with Easyfill.
If you don't know how to patch plaster on a corner, you fix a batten lined up with the edge to give you something to press your trowel against. Do the two faces of the corner separately, otherwise it will bulge and sag.
you could make up a bit of mortar with PVA, cement, water and soft sand. As well as sticking the piece back, the mortar can be pressed into any gaps between the pieces to fill the spaces. Instructions should be on the tub (they are on Unibond, at least). Prime the surfaces first.
I prefer sand and cement for these little jobs. It stays workable for a long time and is strong. You will probably need no more than half a yoghurt pot full.
I prefer sand and cement for these little jobs. It stays workable for a long time and is strong. You will probably need no more than half a yoghurt pot full.
I had a similar problem, although mine was caused by a leaking pipe saturating the block, which then spalled due to free-thaw action.
After fixing the leak (to prevent further and future damage), I screwed a piece of plastering angle bead to the broken corner, then built up the missing material with Wickes Concrete Repair. Once painted to match, looks like original.
After fixing the leak (to prevent further and future damage), I screwed a piece of plastering angle bead to the broken corner, then built up the missing material with Wickes Concrete Repair. Once painted to match, looks like original.
Concrete or cement it
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