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Posted by TonyG on November 19, 2008, 10:41 am
EXT wrote:
>
>
>> G wrote:
>>> I'm laying a shed foundation of 3/4" crushed stone. Due to levelling
>>> issues, I'll be putting down around 12" depth of it (about 7 yards
>>> total crushed stone in a 144 sq. foot area).
>>> Question:
>>> -If I rent a jumping jack for the weekend (around $91), am I ok
>>> putting ALL the crushed stone down and THEN compacting it w/ the
>>> jumping jack all at once?
>>> -Or do I need to put a few inches down, compact it, put a few more
>>> inches, compact it, etc...?
>>> I've never used a jumping jack before so I don't know if the
>>> vibration can penetrate into 12" of crushed stone or if I need to do
>>> it in layers.
>>> Thanks!
>> See if your local concrete supplier has a product called consolidated
>> fill. Its a mix of flyash and cement. I understand it is self
>> compacting to about 95%. It dries like very hard sand. For a shed it
>> should be fine.TonyG
>
> Actually if you live in an area with limestone as the predominant rock,
> call a gravel quarry and ask for "unwashed crushed limestone" it will
> have all the fine stone and dust in-between the gravel, they wash it to
> remove it for "washed gravel". Packed down it sets like soft concrete.
> My driveway is made out of it and can handle a loaded redi-mix truck
> without tire depressions forming.
>
I understand. We get crushed basalt here and it performs similar. But it
will track grit into your bldgs. So its not used as approach walks but
makes good parking areas etc. T
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