Self-binding gravel on concrete base

[GB_Groundworks]

I knew it was spelt correctly I was waiting for them to figure it out,

Anyway if the concrete is shot then like I said excavate and either crush or cart to your nearest yard or recycling centre most will take clean concrete for free and crush it sell it back. You need to get a mini crusher or machine with a crusher bucket, breaking it up with a breaker won't suffice. Then relay, to 150mm and consolidate well, (slightly thicker subbase incase you ever need to run a tractor etc) then lay your self binding gravel.


Few points, unless it's well drained it will wash away. And will show were you run on it in the same place all the time.



Edited By GB_Groundworks on 1281816751

[DNgroundworks]

Thought this was a paving site, as opposed to an English grammar site ??? ???

lol i thought this site was for good humour aswell as expert advice, cheer up sean

[tel19]

Thanks again for the comments.

Is there any alternative to digging up the concrete? Possibly something like a bitumen spray to stick a single layer of gravel to the concrete, thereby reducing the bal bearing effect, and then lay self-binding gravel on top?

My problem is this:

There is about 120 square metres of concrete with maybe 5 square metres only breaking up. It is around 150 mm thick and incredibly hard (you get through a complete 8" disk cutter blade cutting a channel of only 8-10 feet).

The cost of breaking this up and removing for crushing is very high. If it then needs to be transported back I expect this to be high cost as well as the cost of the crushing.

The concrete goes right up to the edge of the house which is 16th century, flint and built directly onto the chalk with no foundations. I am very concerned about the effect of the vibration from the concrete breaker on the walls.

Any alternative suggestions would be welcome.

[seanandruby]

We did all the floors in the baggage areas Heathrow, Gatwick etc with armour epoxy based resin floors. Only a few ml thick it is really hard wearing. The floors take a lot of stick. You also have choice of colours.

[seanandruby]

Thought this was a paving site, as opposed to an English grammar site ??? ???

lol i thought this site was for good humour aswell as expert advice, cheer up sean

Sorry m8, your right again

[Pablo]

Could you not just repatch the broken area's with more concrete.

[lutonlagerlout]

that sounds like the obvious solution holmes?
LLL

[tel19]

I could just patch it but it already looks pretty terrible and that won't improve it. It is currently perfectly serviceable but I am trying to make it look better.

[GB_Groundworks]

as mention simeon from ronacrete has some great products to tart up concrete, give him or ronacrete a call on the number i posted, tell them you got the number from here and they'll talk you through the options they offer.

need to fix the broken concrete first just cut it out and relay with some rebar dowls into the existing slab