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Post by joelbarton87 on Jul 14, 2015 7:04:50 GMT
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Post by spider44 on Jul 15, 2015 16:50:57 GMT
Good to see another build getting going. Enjoy the journey I'm not much further down the path from you...
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Post by joelbarton87 on Jul 17, 2015 20:57:15 GMT
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Post by joelbarton87 on Jul 21, 2015 16:34:30 GMT
So just put the ballast in and added a fue more supports for the shuttering. Can some one let me know what to put ontop of the stone before putting the rebar in please.. ow also ordered a 6mm welded rebar mesh being delivered tomorrow morning with plastic castles.  www.dropbox.com/s/uskyv6lluvc26uz/20150721_172646.jpg?dl=0 |
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phi1
valid member
Posts: 91 
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Post by phi1 on Jul 21, 2015 17:26:54 GMT
So just put the ballast in and added a fue more supports for the shuttering. Can some one let me know what to put ontop of the stone before putting the rebar in please.. ow also ordered a 6mm welded rebar mesh being delivered tomorrow morning with plastic castles. ![]() www.dropbox.com/s/uskyv6lluvc26uz/20150721_172646.jpg?dl=0I poured my base concrete straight onto the hardcore, raised the rebar so that there was 1/3 concrete below it and 2/3 above. The base will need vibrating in or tamping in to reduce air pockets. Phil |
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Post by spider44 on Jul 21, 2015 17:58:27 GMT
After tamping the hard core tightly as Phil suggest a layer of sharp sand about 10mm is sometimes suggested and then a plastic damp proof sheet 6 mil I think is the technical term. The idea is 2 fold - one to stop the concrete drying out too fast underneath (and possibly weakening it) when the concrete hits the dry packed hardcore and secondly with the hope the floor of your slab will be dry and so help keeping your wood dry. I just laid my DPC flat (picture from my build) but I've seen builds where they bring the plastic up the sides too. Not sure which is best. Similarly a DPC is a good idea when you build the walls of the foundation on top of the slab and underneath the hearth slab. Cheers Patrick  |
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Post by joelbarton87 on Jul 21, 2015 18:43:07 GMT
Thanks Phil and Patrick, would you tamp the sharp sand as well? and can i use sharp sand in my cement ?
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Post by spider44 on Jul 21, 2015 21:49:50 GMT
I think the sand should be fine just acting to protect the plastic sheeting from any sharp pieces of hardcore. Sharp sand is what is usually advised for the cement and for the homebrew if you are going down that path.
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phi1
valid member
Posts: 91
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Post by phi1 on Jul 22, 2015 16:46:52 GMT
Thanks Phil and Patrick, would you tamp the sharp sand as well? and can i use sharp sand in my cement ? Should be fine for cement, if you are talking about the base or footings you should use ballast. |
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Post by joelbarton87 on Jul 23, 2015 11:30:54 GMT
I have put ballast down already just wondered if I put sand over the top do I need to tamp the sand too, Spider said no so thats fine. And I dont want to pay two lots of delivery so if I can use the sharp sand for the cement I'll order enough for both at the same time. Thanks guys..
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Post by joelbarton87 on Jul 23, 2015 18:38:04 GMT
This is what i have so far  |
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Post by cannyfradock on Jul 23, 2015 18:42:41 GMT
Joel
As spider mentioned, the sand layer is just to protect the poly membrane from being pierced.....no need to wack it again.
Terry
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Post by joelbarton87 on Jul 24, 2015 12:48:49 GMT
Joel As spider mentioned, the sand layer is just to protect the poly membrane from being pierced.....no need to wack it again. Terry Thanks Terry |
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Post by joelbarton87 on Aug 17, 2015 16:05:30 GMT
Just a little progress report for anyone who is interested.. so about a week ago I hired a compactor plate from Jewsons and tamped the hardcore then covered it with sand.  The next day I put in my damp proof membrane.  Today I put in my rebar and ordered a concrete mini mix of 1.1 cubic meters to be delivered on friday...   |
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