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Post by BudgiesBuddy on Apr 29, 2014 15:39:58 GMT
Wow, the thickness and strength of this slab show from this picture. Why was this laid like this? Just for height? I have seen this thick concrete roads for trucks in hilly areas.
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Post by OP on Apr 29, 2014 18:00:54 GMT
There are ones known as whacker plates. Rather specialized for using more than once. Have you looked at hiring something? Even hardcore could do with a whacker running over it. What sort of soil are you building on? If it is clay then you certainly could do with tampering it, otherwise it could subside when dry and then heave when wet.
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Mar 11, 2013 16:02:25 GMT
geordiemols
Normal Violet
Posts: 129
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Post by geordiemols on Apr 29, 2014 18:46:35 GMT
When it was done the previous pen was running down a slope so when I ordered the concrete the last time I was told to order 2 cube to level the ground, You have to take all the cement in the mixer when delivered.
Everything under control now, my mate who is a builder is advising me.....
The garden never subsided when that slab of concrete was sitting on it so not much chance of it doing that when the shed is sitting on 2 ton of whacked hardcore.
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Post by Budgies Retreat on Apr 29, 2014 18:51:09 GMT
I live near Greenham Common airbase which is now a nature reserve, which has had all of the concrete runway pulled up, but the centre cross section of the runway is still there, and it isn't as thick as that pad, and that had B52's running along it! What I don't understand is why they laid the slabs first, unless they were already there. Personally, I would lay another concrete base once I had put down a DPC first. You could use concrete slabs but ensure that they are perfectly flat.
If the original base wasn't flat or even, you could have painted on a bonding agent first, then made a new wood box ring that was perfectly level around the original pad, and then pouring a self levelling concrete on. It is quite runny and finds it's own level, but by using a long straight edge, you could've tamped it down to the height of the wood box ring to make things quicker.
We're moving soon and I'm building a 20' x 10' workshop, which will need a new base which I will pour concrete into a box ring, and then I start building my outdoor aviary next to it.
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Post by Hezz on Apr 30, 2014 0:44:10 GMT
Where to, now?? I think I would have been looking at using the existing concrete and grinding down smooth or re-surfacing, in other words the easy option, before tackling what you have. I don't know if such a machine exists to smooth it down.......if there is I'll bet its too expensive for me .....
New skip gets delivered tomorrow so start the next phase....lol.....
There is a machine, it's called a concrete grinder, and here you can hire them for a day or however long you need, but you don't want to know about that now, when you have already started breaking it up.
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Post by darrenc271 on May 5, 2014 15:03:48 GMT
Hey hows the new shed going , looks like doing a good job so far , all takes time looking forward to seeing ur progress, how did u get on wi the breeding m8
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