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Posted: Tue Aug 20, 2002 7:12 pm
by nashy
Got a slight high spot in part of my paving,about quarter of inch difference to surrounding area.The neighbour reckons it will whack out,but also says its not that visible,but i layed the drive and it meets my eye every-time i walk on it.
The area in question is about a foot square,is it common to come across this kind of problem?do the professionals have these kind of problems,or is it because i'm an amateur.
Posted: Tue Aug 20, 2002 11:11 pm
by 84-1093879891
We do get high spots or low spots, occasionally, but we can usually work out why - it might be where two screed levels meet, or where there's a change in fall, but understanding why is just as important as resolving the problem, as that means we can avoid making that error in the future. Do you know why this has happened with your paving?
It may be, as I said, a change of screed, but it could be something more complex, such as a patch of over-thick blocks, or a big lump in the sub-base that isn't compacting as much as the surrounding area.
Run the plate over it a half-dozen times and see if that 'irons it out', but don't go mad with the plate or you risk damaging the blocks. If you have a weighty clonker or a mall, that can be used to 'persuade' the high blocks down to level, but if none of this works, then it's simply a matter of lifting the blocks in the high spot, and the immediately surrounding area, re-screeding the bed, and re-laying the blocks.
That's the beauty of block paving (and other elemental pavings ) - if you make a mistake, it's so easy to put it right! :)
Posted: Fri Aug 23, 2002 10:27 am
by nashy
As you state it's where my screed levels meet,b4 i ran the whacker over i pull em out and levelled off.
Posted: Fri Aug 23, 2002 1:51 pm
by 84-1093879891
So, have you managed to resolve it, then?
Posted: Fri Aug 23, 2002 8:36 pm
by nashy
i have removed blocks and screed sand from offending area,drive is on a slight incline towards house,suspect it occured when screeding level for fall into grid.