Hi All

I'm going to lay some 450 x 450 concrete slabs on the edge of my drive and I 
know they will eventually be driven on by wife & daughters - despite dire 
warnings not too.

So, I plan to put in 6" deep footings, 4" of hardcore & 2" of concrete, then 
lay the slabs on a solid bed of mortar - about 3/4" thick.

Is that going to be strong enough, or do I need to keep digging?

Dave

On Sun, 18 Sep 2005 21:43:54 GMT, "david lang"
 wrote:


>Hi All
>
>I'm going to lay some 450 x 450 concrete slabs on the edge of my drive and I 
>know they will eventually be driven on by wife & daughters - despite dire 
>warnings not too.
>
>So, I plan to put in 6" deep footings, 4" of hardcore & 2" of concrete, then 
>lay the slabs on a solid bed of mortar - about 3/4" thick.
>
>Is that going to be strong enough, or do I need to keep digging?
>
>Dave
>



http://www.pavingexpert.com/


is your Bible for this.....


-- 

..andy

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On Sun, 18 Sep 2005 21:43:54 GMT, "david lang"
 wrote:


>Hi All
>
>I'm going to lay some 450 x 450 concrete slabs on the edge of my drive and I 
>know they will eventually be driven on by wife & daughters - despite dire 
>warnings not too.
>
>So, I plan to put in 6" deep footings, 4" of hardcore & 2" of concrete, then 
>lay the slabs on a solid bed of mortar - about 3/4" thick.
>
>Is that going to be strong enough, or do I need to keep digging?


Do they still advise 'hardcore' in such things (I don't think they do
in 'footings' etc)?

I know a local guy who just added a 3rd 'pad' to his front hard
standing (to add a van beside the two cars) and I noted:

1) It was dug fairly shallow
2) They put hardcore in in places
3) There was an iron gate in one bit
??

All the best ..

T i m

>  wrote:
>
>>Hi All
>>
>>I'm going to lay some 450 x 450 concrete slabs on the edge of my drive and 
>>I
>>know they will eventually be driven on by wife & daughters - despite dire
>>warnings not too.
>>
>>So, I plan to put in 6" deep footings, 4" of hardcore & 2" of concrete, 
>>then
>>lay the slabs on a solid bed of mortar - about 3/4" thick.
>>
>>Is that going to be strong enough, or do I need to keep digging?

>


Depends on weight of wife and how many daughters.
If in doubt - keep digging and increase the concrete thickness !!

Pete
www.thecanalshop.com

On Sun, 18 Sep 2005 21:43:54 GMT, "david lang"
 wrote:


>Hi All
>
>I'm going to lay some 450 x 450 concrete slabs on the edge of my drive and I 
>know they will eventually be driven on by wife & daughters - despite dire 
>warnings not too.
>
>So, I plan to put in 6" deep footings, 4" of hardcore & 2" of concrete, then 
>lay the slabs on a solid bed of mortar - about 3/4" thick.
>
>Is that going to be strong enough, or do I need to keep digging?
>
>Dave
>


Get strong thick slabs, not cheepie B&Q ones, you may have 1/2 a
chance.

Rick