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- 20 Aug 2017
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We have recently done some building work, and have a lot of rubble left over - about 5 cubes. We now need to pave outside the back door. I've read in another post that the bricks should be broken down to about 2" pieces before laying it down, and to be careful to remove all plaster from the rubble before doing so.
A couple of questions on this:
A couple of questions on this:
- How does one break up bricks into 2" pieces? can I just lay it down 100mm at a time and smash it down with a plate compactor, or do I need to bring a brick crusher in? I'm filling in about 300mm.
- The rubble doesn't contain any plaster, but does contain cement previously used to hold the wall together. Is this a problem, or is it only plaster I need to worry about?
- Can I lay the paving stones (400x400 concrete slabs) directly on the hardcore with cement/sharp sand, or would you recommend casting a slab first?
- The paving will come up against the house, joining at the level of the damp course. Should I add waterproofing between the hardcore/slab/paving and the house?
- The minimum fall for paving is quoted as 1/40, which seems quite a lot. Is this correct, or can I get away with less?