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Re: Lean concrete

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As long as strength is not a requirement, a cheaper alternative is to
fill the hole with, what is called, "flowable fill".  It is mix of pea
gravel, cement and pozzalona in very flowable consistency. It has a
strength of about 50 psi and is commonly used in many backfills where
compaction becomes expensive.  Any ready mix plant will deliver this.


Szuchuan Chang wrote:
> Need to fill thre 8'-deep pits that are housing floor scales.  Will need
> about 400 cubic-yards of material to fill them.  Thinking of use lean
> concrete to avoid the testing and inspection of compaction. (top 18"
> must be concreted anyway.)
> How to specify lean concrete that will be used for fill only?
> Thanks
> Sam Chang
> Cupertino, CA