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RE: IBC Special inspection for Slab-on-Grade supporting HVAC unit.

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I've never understood this argument - how does the rebar know it's in a
slab on grade vs a structural foundation? Why does corrosion only attack
bars in structural foundations but not slabs on grade? 

Just because the code does not literally apply here does not mean that a
thin cover will be suitable. No more than 1-in of cover for concrete
placed on an irregular surface seems like poor practice to me,
regardless of code applicability. 

William C. Sherman, PE
(Bill Sherman)
CDM, Denver, CO
Phone: 303-298-1311
Fax: 303-293-8236
email: shermanwc(--nospam--at)

-----Original Message-----
Polhemus, Bill [mailto:bill.polhemus(--nospam--at)] wrote: 

Interesting also to note that Ringo recommends a bottom bar clear cover
of no more than an inch or so; his rationale is that the 3" clear cover
requirements of ACI 318 don't apply because SOGs aren't covered by ACI

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