Reinforcement depth for Jointed Concrete Pavement

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Pavement will be used as an entrance for 18 wheeler trucks entering/exiting a warehouse. For the purposes of this question lets assume a typical jointed concrete pavement 8-10" thick with one layer of reinforcement both ways (slab to be on grade or at ground level). What's the general consensus for reinforcement depth? In my office there's a difference in opinion on where rebar would be placed in this scenario...in the lower half it would help with tension obviously but in the upper half it would help with shrinking and temperature cracks.

Anyone have any experience with this or an opinion one way or another?

Thank you

 

[SlideRuleEra]

Per Boyd Ringo, position the steel in the upper half of the slab, preferably at 1/3 slab depth. See the last page of this document: Reinforcing Steel In Slabs-On-Grade (Originally published as CRSI Engineering Data Report 37)

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[MotorCity]

With a well prepared base and 8" to 10" thick pavement, you probably don't need any reinforcing

 

[dik]

and proofroll the sub=base.