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Posted: Thu Aug 26, 2010 8:17 pm
by Flair
Hi all,
I have a quick question about my paving base, it needs to be strong enough to support a car, I am starting with 2 inches of loose bricks and stone, then 3 inches of crush & run then 2 inches of course sand topped with 10 cm of cement then flag on top. My question is will the crush & run be ok on top of the broken bricks & stone once it's whacked down?
Posted: Fri Aug 27, 2010 7:56 am
by seanandruby
Flair wrote:Hi all,
I have a quick question about my paving base, it needs to be strong enough to support a car, I am starting with 2 inches of loose bricks and stone, then 3 inches of crush & run then 2 inches of course sand topped with 10 cm of cement then flag on top. My question is will the crush & run be ok on top of the broken bricks & stone once it's whacked down?
Hi flair. That is some mixture. Have you got many "loose bricks"? If so it might be worth your while hiring a mini crusher. I don't know if there is a great difference, in price, between crush and run and DTP1. What size flags are you going to use? When you say "cement "...you do mean concrete, i hope?
Posted: Fri Aug 27, 2010 9:08 am
by Flair
Hi & thanks for the reply,
all the bricks are smashed in to rubble. Was going to do a 6:1 mix with cement & sharp sand, have been looking at flags and found some 22mm that I like hence the 10cm of mix under them for support.
Posted: Fri Aug 27, 2010 11:27 am
by GB_Groundworks
Read the main site, flags for car traffic should be laid on a 100mm concrete slab, your hardcore brick base will need to be compacted well.
Posted: Fri Aug 27, 2010 4:12 pm
by Flair
Would you put crush & run on top of the rubble then whack it or whack the rubble first, apply the crush & whack again?
Posted: Fri Aug 27, 2010 5:24 pm
by henpecked
Flair wrote:Would you put crush & run on top of the rubble then whack it or whack the rubble first, apply the crush & whack again?
You'd have to whack the big bits , then add the next layer and whack again.
You'd be surprised how much the larger pieces flatten after a few passes.
Hp
Posted: Fri Aug 27, 2010 6:12 pm
by seanandruby
Rubble needs to be broke up small and have plenty of fines included. No need for crush and run,or sand, if you are using 100ml of concrete.