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#1 Joe1888

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Posted 16 July 2016 - 08:38 pm

am looking to put down a concrete pad, as you can see ive started digging...i was thinking once it was more level id be ready to wack it down, hardcore it then wack down the hardcore before starting the concrete..

 

tonight someone with more experince on this kind of work put a damper on it lol, said id probaly have to dig down further untill i hit all clay? ive never attempted this kind of work before, so any advice would be appreciated, what do you think..

 

5.3 metres

6.5 metres

dig/level ground and wack it

hardcore wacked down

plastic sheeting

reebar

then shutter the base and split into four areas and fill each one with concrete, reason for splitting is ill be using a mixer instead of ready mix

 

still undecided were it should be 4" of hardcore/concrete 6"

 

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#2 ryaldinhio

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Posted 16 July 2016 - 08:40 pm

Whats it for fella?

#3 Joe1888

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Posted 16 July 2016 - 08:44 pm

concrete section garage, there was an old drive up the middle of it for many years, have removed the slabs and everything under it.. ive had many cars  on it, thought it should compact enough?



#4 stones

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Posted 17 July 2016 - 03:49 pm

150mm. hardcore laid in 50mm.layers and whackered... 15mm.blinding of sand sheet over with visqueen (damp proof membrane) reinforcement mesh then 100mm. concrete... be able to park a panzer on that ;-)
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#5 Rabid

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Posted 17 July 2016 - 06:55 pm

A ground bearing slab does not need to be taken down to clay for a sectional garage mate, your doing just fine, get some good hardcore in there, about 6 inch, well whacked, blind it off with some sand, whacked, dpm, and 4 inches of concrete.

I would have a look round and see if you can pick up some mesh to drop into the concrete as well.
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#6 chid21

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Posted 18 July 2016 - 05:42 pm

Why are you mixing it in a mixer and not getting ready mix in?

#7 Joe1888

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Posted 18 July 2016 - 09:42 pm

I think it will be cheaper, trying to cut cost any way possible

#8 fox digger

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Posted 18 July 2016 - 09:57 pm

The further you go down the more hardcore you will have to use to bring it back up above ground level. One the ground is solid it should be fine. Secondly save yourself the hardship of mixing it, unless your getting the gravel and cement for free it doesn't pay to use a mixer for big areas. By the time you have the last barrow load in the first one wil be gone off!!
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#9 Joe1888

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Posted 19 July 2016 - 11:22 pm

what do yous think about that old single brick wall... if the pad it set away from it, near the grass area ive left, shouldnt be any problems?



#10 Joe1888

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Posted 26 July 2016 - 11:13 am

ive since dug i out abit more to improve level, its not 100%  level, question is does it need to be?

 

am thinking if its abit uneven, it should be ok once hardcore it spread and compact/ and made level

 

instead of wacking down the muck, going to wack down the hard core in two layers?



#11 fox digger

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Posted 29 July 2016 - 11:38 pm

Make the base level with the layer of hardcore mate, the subsoil doesn't need to be level. And yes, the soil doesn't need to be whacked, if it's ground that has been there and settled for years it will be fine to hardcore over and build your pad on.
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#12 fireman

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Posted 30 July 2016 - 11:34 am

ive since dug i out abit more to improve level, its not 100%  level, question is does it need to be?

 

am thinking if its abit uneven, it should be ok once hardcore it spread and compact/ and made level

 

instead of wacking down the muck, going to wack down the hard core in two layers?

Get the shuttering up and squared off,peg it in and just wacker the hard core down once,re bar in and pour and i recon you could do that in a day with just a few of you with a mixer or two.I do pads regular and i use a mixer on 99.9 percent of them,just put the mixer inside the shuttering and any mess won't matter as it's mix and pour to rake out striaght away.I did a path on my own a couple of weeks ago at home and it took me just 3 hours to mix 3 ton and have it laid and screeded off on my own,that pad i'd lay and screed as i went and just finaly screed it from recently laid side to the first laid bit for evenness in finish type thing.


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#13 Navek

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Posted 08 August 2016 - 12:21 pm

I've got a 20 x 10 ft concrete bad I did in my back yard . I dug down alittle maybe 4 inch I then filled that with 4 inch hard core wich was wackerd down I then shutters it out with 2 by 6 wich I got level and then put 6 inch concrete in . I also did mine in two sections as I mixed my own because my mate got me about 40 bags cement of site for nothing lol
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#14 Joe1888

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Posted 12 August 2016 - 08:38 pm

the digging is done lol..had a couple bits i wanted to sort for shuttering.

 

hopefully have the soil and brick picked up this week and shuttered about the same time and 6 ton of hardcore dropped off. once the pad is set, worst is out the way, should be all systems go

 

thanks for the help :thumbs:

 

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Edited by Joe1888, 12 August 2016 - 08:46 pm.

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#15 fireman

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Posted 13 August 2016 - 09:04 am

Good luck and shame i wasn't closer as i'd have come and helped you and brought a whacker and a mixer or two with me .. ..


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